{"title":"Ametalin Building Membrane","description":"\u003cp\u003eAmetalin manufacture in Salisbury North, South Australia, and sell into the trade under the Trade Select name. Reflective wall wraps and sarking from light to extra heavy duty, VapourTech permeable membranes, FireSark, CeaseFire, ThermalBreak foam, SilverFloor, plus the tapes, cap nails and drainage battens that go with them.\u003c\/p\u003e\u003cp\u003eEvery product publishes a vapour class, water classification, duty grade and flammability index, and all four are repeated in the spec table on the product page. Delivered across Victoria and New South Wales.\u003c\/p\u003e","products":[{"product_id":"vapourtech-rwc-roof-wall-commercial","title":"VapourTech® RWC Roof Wall Commercial","description":"\u003cp\u003eVapourTech RWC is a Class 4 vapour permeable membrane for commercial roofs and walls. One roll size, 1500 mm by 30 m, covering 45 m², built up from four layers with a high strength polymer mesh through the middle and classified Medium duty to AS\/NZS 4200.1:2017.\u003c\/p\u003e\n\u003ch3\u003eWhat vapour permeable is actually buying you\u003c\/h3\u003e\n\u003cp\u003eHigh permeance is the whole point of this membrane. It sheds bulk water from outside while still letting water vapour escape out of the structure, which is what keeps a commercial wall or roof cavity from holding moisture. Permeance is 2.144 µg\/N·s with a water vapour transmission rate of 241 g\/m² per 24 hours, and it is a water barrier to AS\/NZS 4201.4 and an air barrier as well. \u003ca href=\"\/blogs\/blog\/metal-roof-condensation-australia\"\u003eCondensation in metal roofs\u003c\/a\u003e explains why letting vapour out matters as much as keeping water in.\u003c\/p\u003e\n\u003ch3\u003eNon-reflective, so no air gap to detail\u003c\/h3\u003e\n\u003cp\u003eEmittance is 0.9 on both faces, category NN. It does not work by reflection, so it does not need an air gap in front of it and can sit directly against the frame. That makes it simpler to detail than a foil sarking, and unlike foil it is non-conductive.\u003c\/p\u003e\n\u003ch3\u003eStrength and fire\u003c\/h3\u003e\n\u003cp\u003eTensile strength is 10.4 kN\/m machine direction against a 9.5 minimum, edge tear 512 N against a 45 minimum, and it retains 85% of tensile strength after UV exposure. Flammability classification is Low, 5 or lower, and it complies with AS 3959-2018 for all Bushfire Attack Levels from BAL Low through to Flame Zone. Get independent advice before locking a sarking into a BAL design.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eInstall to AS 4200.2 with the printed face out, and lap the joints down the slope so water always runs over a joint rather than into it. Suitable for Australian climate zones 2 to 8. Durability drops in industrial or farm buildings where the air carries chemicals, so ask us first if that is the setting.\u003c\/p\u003e\n\u003cp\u003eFull permeance, strength and fire figures are in the table below. For where a membrane sits against the blanket and the sheeting, see \u003ca href=\"\/blogs\/blog\/metal-roof-insulation-australia\"\u003eMetal roof insulation in Australia\u003c\/a\u003e.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Default Title","offer_id":45225009545398,"sku":"TSVTRWC-45","price":221.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Trade-Select-VapourTech-RWC-Roof-Wall-Commercial-1024-x-1024.webp?v=1782756324"},{"product_id":"trade-select-vapourtech-wall","title":"Trade Select VapourTech® Wall","description":"\u003cp\u003eTrade Select VapourTech Wall is a Class 4 vapour permeable residential wall wrap, 0.45 mm thick, stocked in a 1500 mm x 30 m roll covering 45 m² and a 3050 mm x 30 m roll covering 91.5 m². Light Wall duty to AS\/NZS 4200.1:2017.\u003c\/p\u003e\n\u003ch3\u003eHighly permeable, by design\u003c\/h3\u003e\n\u003cp\u003eVapour permeance is 3.764 µg\/N·s, which is high even for a Class 4 membrane. The wall can dry outward readily, while the wrap still works as a water barrier to AS\/NZS 4201.4 and as an air barrier. In a residential wall that is usually what you want, because the moisture load comes from inside the house.\u003c\/p\u003e\n\u003ch3\u003eNon-reflective, so simpler to detail\u003c\/h3\u003e\n\u003cp\u003eEmittance is 0.58 and 0.56 on the two faces, category NN. It does not work by reflection, so there is no air gap to preserve and it can sit directly against the frame. It is also non-conductive, unlike a foil wrap.\u003c\/p\u003e\n\u003ch3\u003eThe 3050 mm roll\u003c\/h3\u003e\n\u003cp\u003eAt just over three metres wide it runs a full storey in one piece, so the horizontal join disappears and there is one less lap to tape. On a long elevation that is the difference the wide roll buys, and it is the reason to pay more per roll for the same square metre rate.\u003c\/p\u003e\n\u003ch3\u003eStrength\u003c\/h3\u003e\n\u003cp\u003eBall burst 215 N against a 200 minimum, edge tear 189 N machine direction against a 45 minimum, and 0.0% shrinkage against a 0.5% limit. Flammability classification Low.\u003c\/p\u003e\n\u003cp\u003eFull figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1500 mm x 30 m (45 m²)","offer_id":45225009578166,"sku":"TSVTW-45","price":107.0,"currency_code":"AUD","in_stock":true},{"title":"3050 mm x 30 m (91.5 m²)","offer_id":45385995387062,"sku":"TSVTW-91","price":258.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TradeSelect-VapourTech-Wall-1024x1024-2.webp?v=1782756325"},{"product_id":"trade-select-vapourtech-brane-vhp","title":"Trade Select™ VapourTech® Brane® VHP","description":"\u003cp\u003eTrade Select VapourTech Brane VHP is a vapour permeable membrane from Ametalin, stocked in four roll sizes from 1370 x 30 m covering 41.5 m² up to 3050 x 30 m covering 91.5 m².\u003c\/p\u003e\n\u003ch3\u003eVHP means very high permeability\u003c\/h3\u003e\n\u003cp\u003eA high permeability membrane lets water vapour move out of the structure readily while still shedding liquid water from outside. That combination is what lets a wall dry outward instead of holding moisture in the frame, and it is the reason permeable membranes moved up the priority list in recent code cycles. \u003ca href=\"\/blogs\/blog\/metal-roof-condensation-australia\"\u003eCondensation and what NCC 2022 asks for\u003c\/a\u003e covers the reasoning.\u003c\/p\u003e\n\u003ch3\u003eThe wide rolls\u003c\/h3\u003e\n\u003cp\u003eThe 2740 mm and 3050 mm rolls run a full storey in one piece and remove the horizontal join. On a commercial elevation that is the main reason to choose them.\u003c\/p\u003e\n\u003cp\u003eFor declared permeance, duty classification, strength and BAL figures, \u003ca href=\"\/pages\/contact\"\u003eask us\u003c\/a\u003e and we will send the current Ametalin data sheet.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1370 mm x 30 m (41.1 m²)","offer_id":45225009643702,"sku":"TSVHP-41","price":73.15,"currency_code":"AUD","in_stock":true},{"title":"1500 mm x 30 m (45 m²)","offer_id":45225009676470,"sku":"TSVHP-45","price":75.6,"currency_code":"AUD","in_stock":true},{"title":"2740 mm x 30 m (82.2 m²)","offer_id":45225009709238,"sku":"TSVHP-82","price":170.0,"currency_code":"AUD","in_stock":true},{"title":"3050 mm x 30 m (91.5 m²)","offer_id":45225009742006,"sku":"TSVHP-91","price":186.0,"currency_code":"AUD","in_stock":true},{"title":"1500 mm x 30 m (45 m²) white faced","offer_id":45385995190454,"sku":"TSVHP-W-45","price":84.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Trade-Select-VapourTech-Brane-VHP-768x768-1.webp?v=1782756325"},{"product_id":"trade-select-silverfloor","title":"Trade Select SilverFloor®","description":"\u003cp\u003eTrade Select SilverFloor is a double sided reflective foil underfloor insulation, 97% reflective on both faces, in 500 mm and 1500 mm wide rolls of 60 m.\u003c\/p\u003e\n\u003ch3\u003eEnclosing the sub-floor is the big lever\u003c\/h3\u003e\n\u003cp\u003eThe system figures make it plain. In an enclosed unventilated sub-floor Ametalin quotes RT 3.36 in winter and 1.52 in summer. In an unenclosed ventilated sub-floor the same product gives RT 2.05 and 0.77. If the sub-floor can be enclosed, that decision changes the result more than anything else you can specify.\u003c\/p\u003e\n\u003ch3\u003eBuilt for the conditions under a floor\u003c\/h3\u003e\n\u003cp\u003eIt has 5 mm weep holes at 400 mm intervals, so water that does get onto it can drain rather than pool. It is Class 3 vapour permeable and deliberately not a water barrier or air barrier, because under a floor you want moisture to be able to move rather than be trapped against the structure.\u003c\/p\u003e\n\u003ch3\u003eTough enough to work with\u003c\/h3\u003e\n\u003cp\u003eHeavy duty to AS\/NZS 4200.1:2017, with edge tear of 439 N and 452 N against an 80 N minimum, and UV resistance up to 90 days. Sub-floor work is awkward and the membrane takes a beating going in.\u003c\/p\u003e\n\u003ch3\u003eWhich width\u003c\/h3\u003e\n\u003cp\u003eThe 500 mm roll covers 30 m² and suits working between joists single handed. The 1500 mm roll covers 90 m² for open runs. It is electrically conductive, so keep it clear of wiring.\u003c\/p\u003e\n\u003cp\u003eFull figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"500mm x 60m (30 m²)","offer_id":45225009774774,"sku":"TSSF-30","price":89.0,"currency_code":"AUD","in_stock":true},{"title":"1500mm x 60m (90m²)","offer_id":45225009807542,"sku":"TSSF-90","price":280.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/SilverFloor-1500-1024x1024-1.webp?v=1782756326"},{"product_id":"trade-select-wall-wrap-breather","title":"Trade Select Wall Wrap Micro-perforated (Breather)","description":"\u003cp\u003eTrade Select Wall Wrap Micro-perforated is the vapour permeable version of Ametalin's reflective wall wrap. Stocked in Light, Medium and Heavy Duty, each in 1350 mm and 1500 mm widths and 30 m or 60 m rolls. Coverage runs from 40.5 m² to 90 m² per roll.\u003c\/p\u003e\n\u003ch3\u003eBreather, not barrier\u003c\/h3\u003e\n\u003cp\u003eLight and Medium Duty are perforated to Class 4, at 1.600 and 1.717 µg\/N·s. Heavy Duty is Class 3, at 0.3341 µg\/N·s. All three let the wall dry outward instead of holding moisture against the frame. If the design calls for a vapour barrier instead, the solid version is \u003ca href=\"\/products\/trade-select-wall-wrap\"\u003eTrade Select Wall Wrap\u003c\/a\u003e, which is Class 2.\u003c\/p\u003e\n\u003ch3\u003eCheck the climate zone before picking Heavy Duty\u003c\/h3\u003e\n\u003cp\u003eNCC 2022 sets a minimum vapour permeance for a membrane on the outside of the wall insulation. Zones 4 and 5 need 0.143 µg\/N·s, so any of the three will do. Zones 6, 7 and 8 need 1.14 µg\/N·s, which only Class 4 reaches. Melbourne is zone 6, so there it is Light or Medium Duty. Ametalin do not recommend any of the three for wet tropical zones.\u003c\/p\u003e\n\u003ch3\u003eIt is not a water barrier\u003c\/h3\u003e\n\u003cp\u003eAll three duties are classified Non-Water Barrier. Perforating a membrane to let vapour out also lets liquid water through, so these belong behind a masonry leaf or a drained cavity where the outer skin sheds the rain. They are not the wrap for direct fixed cladding.\u003c\/p\u003e\n\u003ch3\u003eChoosing the duty\u003c\/h3\u003e\n\u003cp\u003eThe barrier classifications match apart from the vapour class. The difference shows up before the cladding goes on, while the frame stands wrapped and exposed. Light Duty is 0.09 mm, 10.9 kN\/m machine direction with 444 N edge tear. Medium Duty is 0.10 mm and 11.5 kN\/m against a higher minimum. Heavy Duty is 0.12 mm, 13.7 kN\/m and 565 N edge tear.\u003c\/p\u003e\n\u003ch3\u003eChoose the roll length from the elevation\u003c\/h3\u003e\n\u003cp\u003eThe 60 m rolls halve the number of end joins on a long run, and every join is a line that has to be lapped and taped correctly.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eTape the joins and seal the penetrations with \u003ca href=\"\/products\/trade-select-quicktape\"\u003eQuickTape\u003c\/a\u003e, which is the tape Ametalin specify for permeable membranes. Keep the foil face to the cavity so the reflective side can work. The wrap is electrically conductive, so keep it clear of wiring. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Light Duty \/ 1350 mm x 30 m (40.5 m²)","offer_id":45225010135222,"sku":"TSLD-40-B","price":52.2,"currency_code":"AUD","in_stock":true},{"title":"Light Duty \/ 1350 mm x 60 m (81 m²)","offer_id":45225010167990,"sku":"TSLD-81-B","price":106.0,"currency_code":"AUD","in_stock":true},{"title":"Light Duty \/ 1500 mm x 30 m (45 m²)","offer_id":45225010200758,"sku":"TSLD-45-B","price":57.6,"currency_code":"AUD","in_stock":true},{"title":"Light Duty \/ 1500 mm x 60 m (90 m²)","offer_id":45225010233526,"sku":"TSLD-90-B","price":117.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1350 mm x 30 m (40.5 m²)","offer_id":45225010004150,"sku":"TSMD-40-B","price":67.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1350 mm x 60 m (81 m²)","offer_id":45225010036918,"sku":"TSMD-81-B","price":125.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1500 mm x 30 m (45 m²)","offer_id":45225010069686,"sku":"TSMD-45-B","price":70.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1500 mm x 60 m (90 m²)","offer_id":45225010102454,"sku":"TSMD-90-B","price":132.0,"currency_code":"AUD","in_stock":true},{"title":"Heavy Duty \/ 1350 mm x 30 m (40.5 m²)","offer_id":67644864659638,"sku":"TSHD-40-B","price":77.0,"currency_code":"AUD","in_stock":true},{"title":"Heavy Duty \/ 1350 mm x 60 m (81 m²)","offer_id":67644864692406,"sku":"TSHD-81-B","price":145.0,"currency_code":"AUD","in_stock":true},{"title":"Heavy Duty \/ 1500 mm x 30 m (45 m²)","offer_id":67644864725174,"sku":"TSHD-45-B","price":82.0,"currency_code":"AUD","in_stock":true},{"title":"Heavy Duty \/ 1500 mm x 60 m (90 m²)","offer_id":67644864757942,"sku":"TSHD-90-B","price":156.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TradeSelect-Sarking-Micro-perforated-LD-1024x1024-1.webp?v=1782756327"},{"product_id":"trade-select-firesark","title":"Trade Select FireSark®","description":"\u003cp\u003eTrade Select FireSark is a non-combustible roof sarking and wall wrap built for bushfire areas. E-glass fabric bonded to a 97% reflective aluminium foil with a fire resistant adhesive, 1350 mm x 30 m covering 40.5 m².\u003c\/p\u003e\n\u003ch3\u003eNon-combustible, not just fire retardant\u003c\/h3\u003e\n\u003cp\u003eBoth the fibreglass fabric and the aluminium foil are not deemed combustible, flammability index is 1, and ignitability, spread of flame and heat evolved indices are all 0 with smoke developed at 2. It complies with AS 3959-2018 for all Bushfire Attack Levels including Flame Zone, and meets the Deemed-to-Satisfy provisions for non-combustible construction. On a BAL rated job that combination is the reason to specify it.\u003c\/p\u003e\n\u003ch3\u003eVery strong for a membrane\u003c\/h3\u003e\n\u003cp\u003eTensile strength is 58 kN\/m in the machine direction against a 13.0 minimum, and 26 kN\/m lateral against a 10.5 minimum. Extra Heavy duty to AS\/NZS 4200.1:2017. That is a large margin, and it matters on a site where the sarking may sit exposed before cladding.\u003c\/p\u003e\n\u003ch3\u003eBarrier and reflective performance\u003c\/h3\u003e\n\u003cp\u003eClass 2 vapour barrier at 0.003 µg\/N·s, water barrier and air barrier. The foil face is 97% reflective with an emittance of 0.03, so it needs an air gap in front of it to contribute. It is electrically conductive, so keep it clear of wiring.\u003c\/p\u003e\n\u003cp\u003eFull figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Default Title","offer_id":45225010266294,"sku":"TSFS-40","price":233.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/FireSark-Product-Shot-1024x1024-Trade-Select.webp?v=1782756327"},{"product_id":"trade-select-ceasefire","title":"Trade Select CeaseFire®","description":"\u003cp\u003eTrade Select CeaseFire is a vapour permeable wall wrap and sarking built from a single layer of non-combustible E-glass fabric infused with a hydrophobic treatment. 1500 mm x 30 m covering 45 m² at 0.17 mm.\u003c\/p\u003e\n\u003ch3\u003eThe rare combination\u003c\/h3\u003e\n\u003cp\u003eMost membranes make you choose between fire performance and breathability. CeaseFire is NCC Group 1, its E-glass component is not deemed combustible to AS 1530.1, flammability index is 1, and it is still Class 4 vapour permeable at 1.5767 µg\/N·s. That means a wall on a fire rated job can still dry outward instead of being sealed up.\u003c\/p\u003e\n\u003ch3\u003eDuty and strength\u003c\/h3\u003e\n\u003cp\u003eExtra Heavy duty to AS\/NZS 4200.1:2017. Tensile strength 24 kN\/m machine direction against a 13.0 minimum, edge tear 326 N against a 90 minimum, and 0.0% shrinkage.\u003c\/p\u003e\n\u003ch3\u003eNon-reflective\u003c\/h3\u003e\n\u003cp\u003eEmittance 0.90 on both faces, category NN, and non-conductive. It does not need an air gap to perform and it does not carry the electrical risk a foil wrap does.\u003c\/p\u003e\n\u003ch3\u003eAgainst FireSark\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/trade-select-firesark\"\u003eFireSark\u003c\/a\u003e is the reflective, vapour barrier answer for bushfire areas. CeaseFire is the breathable, non-reflective one. Which is right depends on whether the wall needs to dry outward or needs a vapour barrier.\u003c\/p\u003e\n\u003cp\u003eFull figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Default Title","offer_id":45225010331830,"sku":"TSCF-45","price":753.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Trade-Select-CeaseFire-02.webp?v=1782756328"},{"product_id":"trade-select-thermalliner","title":"Trade Select ThermalLiner","description":"\u003cp\u003eTrade Select ThermalLiner is a foil faced XPE foam roll for roofs and walls, 1500 mm by 20 m covering 30 m², over a 4 mm closed cell foam core with aluminium foil laminated to a polymer weave on both faces.\u003c\/p\u003e\n\u003ch3\u003eWhere the R-value comes from\u003c\/h3\u003e\n\u003cp\u003eThe material R-value is 0.11 m²K\/W, stated as RM 0.1. That number on its own is not what makes a reflective product work. The performance comes from the foil facing an air cavity, so the bright face has to go into the cavity and the cavity has to stay clear. Dust settling on an upward facing foil surface cuts the reflective performance over time, which is why the orientation and the detailing matter more here than the thickness. \u003ca href=\"\/blogs\/blog\/blanket-vs-sarking-vs-batts\"\u003eBlanket, sarking or batts\u003c\/a\u003e sets out where a reflective product belongs against bulk insulation, and why one rarely replaces the other.\u003c\/p\u003e\n\u003ch3\u003eThe quiet benefit on a shed\u003c\/h3\u003e\n\u003cp\u003eThe foam core also dampens drumming on a metal roof. On a shed or garage that is often the difference people notice first, ahead of the temperature. \u003ca href=\"\/blogs\/blog\/insulating-a-metal-shed-roof\"\u003eWhy metal sheds and garages get so hot\u003c\/a\u003e goes through the options.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eRun it with the bright foil face into the air cavity. Keep the cavity clear. The foil conducts electricity, so keep it clear of wiring during installation.\u003c\/p\u003e\n\u003cp\u003eFull thermal, strength and classification figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Default Title","offer_id":45225010397366,"sku":"TSTB4-30","price":315.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TradeSelect-ThermalLiner-4-1024x1024-2.webp?v=1782756329"},{"product_id":"thermalbreak-7","title":"Trade Select ThermalBreak 7","description":"\u003cp\u003eThermalBreak 7 is a foil faced XPE foam sarking made for one specific job: the thermal break the NCC asks for where cladding fixes straight onto steel framing. Material R-value is 0.21 m²K\/W, and 0.20 once it is compressed.\u003c\/p\u003e\n\u003ch3\u003eWhy the compressed figure is the one that counts\u003c\/h3\u003e\n\u003cp\u003eA thermal break gets squashed the moment the cladding screws go through it. A product that only holds its rating uncompressed is not doing the job on site. This one still holds R0.20 compressed, which is exactly what the code asks for at those junctions. \u003ca href=\"\/blogs\/blog\/thermal-break-r02-explained\"\u003eThermal breaks explained\u003c\/a\u003e covers where the requirement applies and why such a small number matters at all.\u003c\/p\u003e\n\u003ch3\u003eWhat it does beyond the thermal break\u003c\/h3\u003e\n\u003cp\u003eIt is also a Class 2 vapour barrier, a water barrier to AS\/NZS 4201.4 and an air barrier, classified Extra Heavy duty to AS\/NZS 4200.1:2017. Fire is Group 1 to AS 5637.1 with a Low flammability classification, and it is suitable for all Bushfire Attack Levels. Get independent advice before locking a sarking into a BAL design.\u003c\/p\u003e\n\u003ch3\u003eSystem values\u003c\/h3\u003e\n\u003cp\u003eAn independent engineer calculated total system R-values to AS\/NZS 4859.2:2018 for typical mainland capital city conditions under NCC 2019: RT 0.92 in winter and 2.02 in summer for a warehouse roof with no ceiling, and RT 2.07 winter and 2.03 summer in a double brick wall. Those figures were calculated against NCC 2019 and may not carry across to other editions of the code, so check before relying on them for a current submission.\u003c\/p\u003e\n\u003ch3\u003eRoll and fitting\u003c\/h3\u003e\n\u003cp\u003eOne roll size: 1350 mm by 22.25 m plus a 150 mm flap, covering 30 m², over a 7.8 mm foam core. Fix it over the steel frame before the cladding goes on so it sits between frame and sheet and breaks the conduction path, and lap the runs onto the flap rather than butting them. Do not stretch it drum tight over the studs, because the compressed R0.20 figure assumes there is still foam there to compress. The foil conducts electricity, so keep it clear of wiring.\u003c\/p\u003e\n\u003cp\u003eFull figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Default Title","offer_id":45225010462902,"sku":"TSTB7-30","price":389.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Trade-Select-ThermalBreak-7-1024x1024-2-1.webp?v=1782756329"},{"product_id":"ametalin-thermal-brane-gp4-foil-insulation","title":"Trade Select ThermalBrane GP™ Reflective Foam Insulation","description":"\u003cp\u003eTrade Select ThermalBrane GP is a double sided reflective foam insulation built around a 4 mm cross linked closed cell XPE foam core with aluminium foil on both faces. Ametalin describe it as a three in one product: reflective insulation, thermal break and medium vapour barrier. Two roll sizes, 1500 mm x 20 m and 1500 mm x 30 m.\u003c\/p\u003e\n\u003ch3\u003eWhat the foam core adds\u003c\/h3\u003e\n\u003cp\u003eA plain foil membrane gives you reflection and nothing else. The 4 mm foam core adds a material R-value of R0.1 and, more usefully, a physical separation that reduces conduction where the product sits between two building elements. That is what makes it usable as a thermal break rather than only as a sarking.\u003c\/p\u003e\n\u003ch3\u003eReflective on both sides\u003c\/h3\u003e\n\u003cp\u003e97% reflective at 0.03 emissivity on the bright side and 96% at 0.04 on the anti-glare side. Both faces need an air space in front of them to contribute. Ametalin declare RT 1.1 winter for a ventilated 22 degree tile roof, RT 1.2 winter for a steel stud framed wall, and RT 2.1 for a brick veneer or double brick cavity wall.\u003c\/p\u003e\n\u003ch3\u003eExtra heavy duty\u003c\/h3\u003e\n\u003cp\u003eTensile strength 15.6 kN\/m machine direction against a 13.0 kN\/m minimum, edge tear 853 N against 90 N. High water penetration resistance and a Medium vapour barrier classification. It complies with AS 3959-2009 for wall systems from BAL Low through to Flame Zone.\u003c\/p\u003e\n\u003ch3\u003eWhere it goes\u003c\/h3\u003e\n\u003cp\u003eRoofs, walls and floors, in houses and in commercial sheds. In a roof it is laid over the rafters as a continuous membrane with the blue anti-glare side facing out, lapped no less than 150 mm, and there is a 150 mm flap on the roll for that. It is fibre free and non-allergenic, which is a real advantage in a shed where the underside stays exposed.\u003c\/p\u003e\n\u003ch3\u003eTwo cautions\u003c\/h3\u003e\n\u003cp\u003eAluminium corrodes in contact with wet concrete or mortar, so keep it clear of both. Within 500 m of the sea, or in an agricultural shed, face the foil into an enclosed unvented air space. Foil insulation is electrically conductive and installation carries real risk, so follow the AFIA work method statements.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1500 mm x 30 m (45 m²)","offer_id":45348799840438,"sku":"TSTBGP-45","price":393.0,"currency_code":"AUD","in_stock":true},{"title":"1500 mm x 20 m (30 m²)","offer_id":45385995419830,"sku":"TSTBGP-30","price":298.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/trade-select-thermalbreak-7-foil-insulation-768x977.jpg?v=1786405525"},{"product_id":"trade-select-wall-wrap","title":"Trade Select Wall Wrap","description":"\u003cp\u003eTrade Select Wall Wrap is a single sided reflective wall wrap from Ametalin, stocked in Light Duty and Medium Duty, each in 1350 mm and 1500 mm widths and 30 m or 60 m rolls. It is a Class 2 vapour barrier, so it holds moisture out of the frame rather than letting it pass through.\u003c\/p\u003e\n\u003ch3\u003eBarrier wrap or breather wrap\u003c\/h3\u003e\n\u003cp\u003eThis is the barrier version. It is an air barrier, a water barrier and a Class 2 vapour barrier at the same time, which suits Climate Zones 1 to 5 and any wall where the design intent is to keep vapour on the outside. If the wall needs to dry outward, the vapour permeable version is the \u003ca href=\"\/products\/trade-select-wall-wrap-breather\"\u003eWall Wrap Micro-perforated\u003c\/a\u003e instead. Getting that choice wrong is the single most common condensation problem in a new wall, so check the climate zone before ordering.\u003c\/p\u003e\n\u003ch3\u003eLight Duty or Medium Duty\u003c\/h3\u003e\n\u003cp\u003eBoth grades carry the same barrier classifications. The difference is strength while the frame stands exposed. Light Duty is tested at 8.9 kN\/m machine direction against a 7.5 kN\/m minimum. Medium Duty runs 11.8 kN\/m against a 9.5 kN\/m minimum, and its edge tear is 500 N against 375 N. On a windy site, a long build program, or a frame other trades will be working past, Medium Duty is the one that survives.\u003c\/p\u003e\n\u003ch3\u003eThe foil side needs an air gap\u003c\/h3\u003e\n\u003cp\u003eFoil emittance is 0.03 and the printed face is 0.90. That 97% reflective face only earns its R-value when it faces a cavity, so a wrap pressed flat against cladding gives you the barrier performance and none of the reflective gain. Ametalin declare a total system R-value of 1.01 winter and 0.92 summer for lightweight cladding direct to stud, and 2.93 winter with an R2.7 batt in a brick veneer wall.\u003c\/p\u003e\n\u003ch3\u003eFire\u003c\/h3\u003e\n\u003cp\u003eFlammability index Low, at or below 5, with a Group 1 fire performance classification for wall and ceiling lining. It complies with AS 3959-2018 for use in all Bushfire Attack Levels. Take independent advice on sarking selection before locking in a BAL design.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eLap and tape the joins and seal around penetrations, or the wrap is not a barrier at all. The material is electrically conductive, so keep it clear of wiring. Install to AS 4200.2. Full figures for both duties are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Light Duty \/ 1350 mm x 30 m (40.5 m²)","offer_id":45385983754422,"sku":"TSLD-40","price":55.1,"currency_code":"AUD","in_stock":true},{"title":"Light Duty \/ 1350 mm x 60 m (81 m²)","offer_id":45385983787190,"sku":"TSLD-81","price":106.0,"currency_code":"AUD","in_stock":true},{"title":"Light Duty \/ 1500 mm x 30 m (45 m²)","offer_id":45385983819958,"sku":"TSLD-45","price":60.8,"currency_code":"AUD","in_stock":true},{"title":"Light Duty \/ 1500 mm x 60 m (90 m²)","offer_id":45385983852726,"sku":"TSLD-90","price":117.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1350 mm x 30 m (40.5 m²)","offer_id":45385983885494,"sku":"TSMD-40","price":67.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1350 mm x 60 m (81 m²)","offer_id":45385983918262,"sku":"TSMD-81","price":125.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1500 mm x 30 m (45 m²)","offer_id":45385983951030,"sku":"TSMD-45","price":70.0,"currency_code":"AUD","in_stock":true},{"title":"Medium Duty \/ 1500 mm x 60 m (90 m²)","offer_id":45385983983798,"sku":"TSMD-90","price":132.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Wall-Wrap-MD-Product-Roll-1024x1024-Trade-Select.jpg?v=1787844514"},{"product_id":"trade-select-sarking-hd","title":"Trade Select Sarking HD","description":"\u003cp\u003eTrade Select Sarking HD is the heavy duty grade of Ametalin's single sided reflective membrane, used as roof sarking and as a wall wrap on jobs that need the extra strength. Five roll sizes, including a 1200 mm width that suits standard rafter spacings.\u003c\/p\u003e\n\u003ch3\u003eWhere the heavy duty grade earns its money\u003c\/h3\u003e\n\u003cp\u003eTensile strength is 13.9 kN\/m machine direction against a 12.5 kN\/m minimum, and edge tear is 586 N against an 80 N minimum. Sarking spends its working life stretched over rafters and walked on by roofers, so tear resistance is the property that decides whether the roll survives the day it goes on.\u003c\/p\u003e\n\u003ch3\u003eNon-combustible use\u003c\/h3\u003e\n\u003cp\u003eSarking-type materials no thicker than 1 mm with a flammability index of 5 or less can be used where non-combustible material is required. This one is 0.12 mm with a Low flammability index, and Ametalin state it complies with the Deemed-to-Satisfy provisions for non-combustible building elements. It also complies with AS 3959-2018 for all Bushfire Attack Levels.\u003c\/p\u003e\n\u003ch3\u003eVapour barrier, so check the roof design\u003c\/h3\u003e\n\u003cp\u003eThis is a Class 2 vapour barrier at 0.004 µg\/N·s, which is a genuinely tight membrane. Under a metal roof in a cold or mixed climate that can be exactly wrong, because the roof then has no way to dry upward. If the design calls for a permeable underlay, use \u003ca href=\"\/products\/trade-select-vapourtech-brane-vhp\"\u003eVapourTech Brane VHP\u003c\/a\u003e instead. Our article on \u003ca href=\"\/blogs\/blog\/metal-roof-condensation-australia\"\u003emetal roof condensation\u003c\/a\u003e sets out the reasoning.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eAmetalin declare RT 0.93 winter and RT 1.51 summer for an unventilated 22 degree residential roof, and RT 2.75 winter for battened out lightweight cladding with an R2.7 batt. The foil face needs an air gap to deliver that. The membrane is electrically conductive, so keep it clear of wiring. Install to AS 4200.2. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1200 mm x 60 m (72 m²)","offer_id":45385984966838,"sku":"TSHD-72","price":117.0,"currency_code":"AUD","in_stock":true},{"title":"1350 mm x 30 m (40.5 m²)","offer_id":45385984999606,"sku":"TSHD-40","price":73.15,"currency_code":"AUD","in_stock":true},{"title":"1350 mm x 60 m (81 m²)","offer_id":45385985032374,"sku":"TSHD-81","price":145.0,"currency_code":"AUD","in_stock":true},{"title":"1500 mm x 30 m (45 m²)","offer_id":45385985065142,"sku":"TSHD-45","price":77.9,"currency_code":"AUD","in_stock":true},{"title":"1500 mm x 60 m (90 m²)","offer_id":45385985097910,"sku":"TSHD-90","price":156.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/REFLECTIVE-WALL-WRAPS-drive1.jpg?v=1787844635"},{"product_id":"trade-select-sarking-xr-hd","title":"Trade Select Sarking xR HD","description":"\u003cp\u003eTrade Select Sarking xR HD is the double sided reflective version of Ametalin's heavy duty sarking. Both faces are low emittance, 0.05 on the anti-glare side and 0.03 on the foil side, which is where the extra R-value in the name comes from.\u003c\/p\u003e\n\u003ch3\u003eTwo reflective faces, two air gaps\u003c\/h3\u003e\n\u003cp\u003eA single sided sarking only works against the cavity it faces. With both faces reflective, a roof that has an air space above and below the membrane gets a contribution from each side. Ametalin declare RT 1.14 winter and RT 1.82 summer for an unventilated 22 degree residential roof, against RT 0.93 and RT 1.51 for the standard \u003ca href=\"\/products\/trade-select-sarking-hd\"\u003eSarking HD\u003c\/a\u003e. Battened out lightweight cladding with an R2.7 batt is declared at RT 3.00 winter.\u003c\/p\u003e\n\u003ch3\u003eStill a heavy duty membrane\u003c\/h3\u003e\n\u003cp\u003eTensile strength 12.8 kN\/m machine direction against a 12.5 kN\/m minimum, edge tear 507 N against 80 N, nominal thickness 0.17 mm. Class 2 vapour barrier at 0.02141 µg\/N·s, water barrier and air barrier.\u003c\/p\u003e\n\u003ch3\u003eFire\u003c\/h3\u003e\n\u003cp\u003eFlammability index Low, at or below 5, and compliant with AS 3959-2018 for use in all BALs. Note that at 0.17 mm it is still under the 1 mm limit, but Ametalin do not claim the non-combustible construction concession on this sheet the way they do for Sarking HD, so do not assume it.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eBoth faces are reflective, so an installation that presses the membrane flat on both sides throws away most of what you paid for. Batten it out or run it over a spacer. It is electrically conductive, so keep it clear of wiring. Install to AS 4200.2. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1350 mm x 60 m (81 m²)","offer_id":45385985130678,"sku":"TSHD-XR-81","price":214.0,"currency_code":"AUD","in_stock":true},{"title":"1500 mm x 30 m (45 m²)","offer_id":45385985163446,"sku":"TSHD-XR-45","price":121.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Trade-Select-Sarking-xR-HD.jpg?v=1787844637"},{"product_id":"trade-select-sarking-tre-tile-roof-extra","title":"Trade Select Sarking TRE Tile Roof Extra","description":"\u003cp\u003eTrade Select Sarking TRE is the Tile Roof Extra grade, an extra heavy duty radiant barrier made for sarking under a tiled roof. One size, 1500 mm x 30 m covering 45 m².\u003c\/p\u003e\n\u003ch3\u003eBuilt for the loads a tile roof puts on sarking\u003c\/h3\u003e\n\u003cp\u003eTensile strength is 23.7 kN\/m machine direction against a 13.0 kN\/m minimum, and 21.9 kN\/m lateral against 10.5. Edge tear is 1040 N and 994 N against a 90 N minimum. Those are large margins by any measure, and they are there because tile battens are fixed straight through the sarking and tilers work on top of it. Nominal thickness is 0.22 mm, the thickest membrane in the Trade Select range.\u003c\/p\u003e\n\u003ch3\u003eWhat it does in the roof\u003c\/h3\u003e\n\u003cp\u003eIt is a Class 2 vapour barrier at 0.012 µg\/N·s, a water barrier and an air barrier. Under tiles that combination stops wind driven rain and dust getting into the roof space through the tile laps, which is the usual failure a tiled roof has without sarking. Ametalin declare RT 0.93 winter and RT 1.51 summer for an unventilated 22 degree residential roof.\u003c\/p\u003e\n\u003ch3\u003eFire\u003c\/h3\u003e\n\u003cp\u003eFlammability index Low, at or below 5, and compliant with AS 3959-2018 for use in all BALs.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eDrape it over the rafters with a slight sag so any water that gets past a tile runs to the gutter rather than pooling on a batten. The foil face is 0.03 emittance and needs the air space under the tiles to work. It is electrically conductive, so keep it clear of wiring. Install to AS 4200.2. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1500 mm x 30 m (45 m²)","offer_id":45385986277558,"sku":"TSTRE-45","price":134.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Sarking-TRE-Product-Shot-1024-x1024-Trade-Select.jpg?v=1787844731"},{"product_id":"trade-select-sarking-hvb","title":"Trade Select Sarking HVB High Vapour Barrier","description":"\u003cp\u003eTrade Select Sarking HVB is the tightest membrane Ametalin make in this range. Class 1 vapour barrier at 0.002 µg\/N·s, extra heavy duty, one size at 1350 mm x 60 m covering 81 m².\u003c\/p\u003e\n\u003ch3\u003eClass 1 is a different order of tightness\u003c\/h3\u003e\n\u003cp\u003eThe vapour classes run 1 to 4, with Class 1 the tightest barrier and Class 4 the most permeable. Most reflective sarkings sit at Class 2. HVB is Class 1, roughly twice as tight again as the standard \u003ca href=\"\/products\/trade-select-sarking-hd\"\u003eSarking HD\u003c\/a\u003e. That is what you want over a cool room, a swimming pool hall, a food processing area or any building where the inside carries far more vapour than the outside and it must not reach the structure.\u003c\/p\u003e\n\u003ch3\u003eExtra heavy duty\u003c\/h3\u003e\n\u003cp\u003eTensile strength 15.2 kN\/m machine direction against a 13.0 kN\/m minimum, edge tear 646 N against 90 N, nominal thickness 0.17 mm.\u003c\/p\u003e\n\u003ch3\u003eWhere it is the wrong choice\u003c\/h3\u003e\n\u003cp\u003eA Class 1 barrier on the outside of a wall that also has a vapour barrier on the inside traps moisture between them with no way out. HVB belongs on the warm side of the insulation, or in a roof detail designed around it. If the assembly is meant to dry outward, use a permeable membrane such as \u003ca href=\"\/products\/trade-select-vapourtech-brane-vhp\"\u003eVapourTech Brane VHP\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eAmetalin declare RT 0.93 winter and RT 1.51 summer for an unventilated 22 degree residential roof, and RT 2.93 winter for a brick veneer wall with an R2.7 batt. Tape every join and seal every penetration, because a Class 1 barrier with holes in it is not a Class 1 barrier. It is electrically conductive, so keep it clear of wiring. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1350 mm x 60 m (81 m²)","offer_id":45385986310326,"sku":"TSXHD-HVB-81","price":187.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Sarking-HVB-Product-Shot-1024x1024-Trade-Select.jpg?v=1787844732"},{"product_id":"trade-select-wall-wrap-xr-micro-perforated-hd","title":"Trade Select Wall Wrap xR Micro-perforated HD","description":"\u003cp\u003eTrade Select Wall Wrap xR Micro-perforated HD is the wall wrap Ametalin built for brick veneer and drained cavity walls. It is vapour permeable and double sided reflective at the same time, which is an unusual combination and the reason it costs more than a plain breather wrap.\u003c\/p\u003e\n\u003ch3\u003ePermeable and reflective together\u003c\/h3\u003e\n\u003cp\u003eThe micro-perforation pattern gives Class 4 vapour permeance at 1.450 µg\/N·s, so indoor water vapour can pass out into the cavity rather than condensing inside the wall. Both faces are reflective, 0.05 anti-glare and 0.03 foil, so the cavity between the frame and the brick leaf turns into a reflective air space. Ametalin declare RT 1.72 winter for a brick veneer wall with the wrap alone, and RT 3.40 winter with an R2.7 batt added.\u003c\/p\u003e\n\u003ch3\u003eNot a water barrier\u003c\/h3\u003e\n\u003cp\u003eRead this part carefully. It is classified Non-Water Barrier. Perforating a membrane to let vapour out also lets liquid water through, so this belongs behind a masonry leaf or a drained cavity where the outer skin sheds the rain. It is not the wrap for a direct fixed cladding wall. Use the Class 2 \u003ca href=\"\/products\/trade-select-wall-wrap\"\u003eTrade Select Wall Wrap\u003c\/a\u003e or the \u003ca href=\"\/products\/trade-select-wall-wrap-breather\"\u003eWall Wrap Micro-perforated\u003c\/a\u003e range there instead.\u003c\/p\u003e\n\u003ch3\u003eHeavy duty\u003c\/h3\u003e\n\u003cp\u003eTensile strength 15.3 kN\/m machine direction against a 12.5 kN\/m minimum, edge tear 499 N against 80 N, thickness 0.12 mm. It is an air barrier, and flammability index is Low, at or below 5, with compliance to AS 3959-2018 for all BALs.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eKeep the cavity clear so the reflective faces have air in front of them and the drainage path stays open. The wrap is electrically conductive, so keep it clear of wiring. Install to AS 4200.2. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1350 mm x 30 m (40.5 m²)","offer_id":45385987227830,"sku":"TSHD-XR-40-B","price":132.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Trade-Select-Wall-Wrap-xR-Micro-perforated.jpg?v=1787844809"},{"product_id":"trade-select-firesark-micro-perforated","title":"Trade Select FireSark® Micro-perforated","description":"\u003cp\u003eTrade Select FireSark Micro-perforated is the vapour permeable version of Ametalin's non-combustible sarking. Non-combustible E-glass fabric bonded to 97% reflective aluminium foil, perforated so water vapour can pass through. 1350 mm x 30 m covering 40.5 m².\u003c\/p\u003e\n\u003ch3\u003eNon-combustible and permeable at the same time\u003c\/h3\u003e\n\u003cp\u003eMost vapour permeable membranes are polymer based, and polymer burns. This one is not deemed combustible to AS 1530.1, with early fire hazard indices of 0, 0, 0 and 2, and it complies with the NCC Deemed-to-Satisfy provisions for non-combustible construction. It is also rated for use in all BAL zones under AS 3959. If a commercial facade or a Flame Zone job needs both a breather membrane and non-combustible material, this is the product that does both.\u003c\/p\u003e\n\u003ch3\u003eBarrier vs breather\u003c\/h3\u003e\n\u003cp\u003eClass 3 vapour permeable at 0.8698 µg\/N·s. It is an air barrier but it is classified Non-Water Barrier, so it needs a drained cavity or an outer skin that sheds rain. The solid vapour barrier version is \u003ca href=\"\/products\/trade-select-firesark\"\u003eTrade Select FireSark\u003c\/a\u003e, which is a Class 2 barrier and a water barrier.\u003c\/p\u003e\n\u003ch3\u003eVery strong for a membrane\u003c\/h3\u003e\n\u003cp\u003eTensile strength 58 kN\/m machine direction against a 13.0 kN\/m minimum, and 26 kN\/m lateral against 10.5. Extra Heavy duty to AS\/NZS 4200.1:2017. Thickness 0.20 mm.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eAmetalin declare RT 3.18 winter for an aerated concrete clad wall with an R2.5 batt, and RT 2.93 winter for a brick veneer wall with an R2.7 batt. The foil face is 0.03 emittance and needs an air gap. The material is electrically conductive, so keep it clear of wiring. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"1350 mm x 30 m (40.5 m²)","offer_id":45385987260598,"sku":"TSFS-40-B","price":233.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/FireSark-Micro-perforated-Product-Shot-1024x1024-Trade-Select.jpg?v=1787844809"},{"product_id":"trade-select-sarking-tape","title":"Trade Select Sarking Tape 48mm x 50m","description":"\u003cp\u003eTrade Select Sarking Tape is the standard silver foil tape for sealing the joins in reflective sarking, wall wrap and underfloor insulation. Metallised polyester, 80 microns total, 48 mm wide on a 50 m roll. Sold per roll, 24 rolls to a carton.\u003c\/p\u003e\n\u003ch3\u003eAn untaped join is not a barrier\u003c\/h3\u003e\n\u003cp\u003eA wall wrap or sarking is only an air and vapour barrier where it is continuous. Every lap and every penetration is a hole until it is taped. This is the tape Ametalin specify for their own membranes, so the adhesive and the foil are matched to what you are sticking it to.\u003c\/p\u003e\n\u003ch3\u003eWhy not cloth duct tape\u003c\/h3\u003e\n\u003cp\u003ePeel adhesion is 15 N\/25 mm and tensile strength is 95 N\/25 mm, both higher than a typical cloth duct tape, and the acrylic adhesive is a cold weather formula that still grabs at low temperature. It is UV resistant and will not delaminate with age, which matters because sarking often sits exposed for weeks before the cladding goes on.\u003c\/p\u003e\n\u003ch3\u003eTemperature range\u003c\/h3\u003e\n\u003cp\u003eService temperature runs from minus 30 to plus 100 degrees. Apply it between 10 and 40 degrees onto a surface that is clean, dry and free of oil, and press it down with a plastic squeegee so it follows every contour. Cold or dusty surfaces are the usual reason a foil tape lets go later.\u003c\/p\u003e\n\u003ch3\u003eOther uses\u003c\/h3\u003e\n\u003cp\u003eIt is hand tearable and vapour sealing, so it also works for HVAC and ducting closure. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"48 mm x 50 m","offer_id":45385987752118,"sku":"TSIDT-5050","price":15.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TSIDT-5050_Sarking-Tape.jpg?v=1787844906"},{"product_id":"trade-select-reinforced-ducting-tape","title":"Trade Select Reinforced Ducting Tape","description":"\u003cp\u003eTrade Select Reinforced Ducting Tape is an aluminium foil tape with a polyethylene scrim behind it, so it tears in a straight line by hand but will not stretch or split under load. 0.178 mm thick, 48 mm and 72 mm rolls, both 50 m.\u003c\/p\u003e\n\u003ch3\u003eWhere the scrim earns its place\u003c\/h3\u003e\n\u003cp\u003ePlain foil tape stretches. On a reflective foam board join, a duct seam or anywhere the two surfaces move against each other, that stretch turns into a wrinkle and then a gap. The scrim holds elongation to 25% against the 100% of an unreinforced foil tape, and lifts tensile strength to 100 N\/25 mm.\u003c\/p\u003e\n\u003ch3\u003eHeat and fire\u003c\/h3\u003e\n\u003cp\u003eService range is minus 30 to plus 120 degrees, so it handles hot duct runs and roof space temperatures that soften ordinary tapes. Early fire hazard indices are 0, 0, 0 and 1 to AS\/NZS 1530.3-1999. It is UV resistant and vapour sealing.\u003c\/p\u003e\n\u003ch3\u003eWhich width\u003c\/h3\u003e\n\u003cp\u003e48 mm is the general purpose size for membrane laps and small duct seams. 72 mm is the one for reflective foam board joins such as \u003ca href=\"\/products\/thermalbreak-7\"\u003eThermalBreak 7\u003c\/a\u003e and for larger ductwork, where the extra width gives a wider bond either side of the join.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eThe surface has to be clean, dry and oil free. Apply between 10 and 40 degrees and press the tape down with a plastic squeegee. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"48 mm x 50 m","offer_id":45385987784886,"sku":"TSIDTR-4850","price":21.0,"currency_code":"AUD","in_stock":true},{"title":"72 mm x 50 m","offer_id":45385987817654,"sku":"TSIDTR-7250","price":27.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TSIDTR-7250_Reinforced-Ducting-Tape.jpg?v=1787844907"},{"product_id":"trade-select-quicktape","title":"Trade Select QuickTape™ Membrane Tape","description":"\u003cp\u003eTrade Select QuickTape is the tape for the membranes that other tapes will not hold. Woven polymer fabric with the thickest adhesive in the Trade Select range, no release liner, 48 mm and 72 mm on 50 m rolls.\u003c\/p\u003e\n\u003ch3\u003eNo liner, which is the whole point\u003c\/h3\u003e\n\u003cp\u003ePeeling backing paper off a tape while balanced on a frame in the wind is where the time goes. QuickTape has no liner, so you unroll it straight onto the join. Ametalin put the time saved at up to a third of the membrane fixing time, and that matches what the format does in practice.\u003c\/p\u003e\n\u003ch3\u003eMade for permeable and airtight membranes\u003c\/h3\u003e\n\u003cp\u003eVapour permeable membranes are the hardest surface in the range to stick to, because the face is designed to be open. The woven fabric carrier and the aggressive initial tack are aimed at exactly that, and Ametalin call it out for use with the \u003ca href=\"\/products\/trade-select-vapourtech-brane-vhp\"\u003eVapourTech\u003c\/a\u003e permeable wraps and for airtight sealing on Passivhaus projects.\u003c\/p\u003e\n\u003ch3\u003eBranded or plain\u003c\/h3\u003e\n\u003cp\u003eThe Trade Select printed roll and the plain commercial roll are the same tape. The plain version is cheaper because it skips the print stage, and it is the one to buy if the tape will be visible on a job where you would rather not advertise the brand.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eHand tearable. Service range is minus 30 to over 80 degrees. The surface has to be clean and dry, and the roll has a 12 month shelf life at 21 degrees, so do not stockpile it. Full figures are in the table below.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"48 mm x 50 m \/ Trade Select branded","offer_id":45385987948726,"sku":"TSQT-4850","price":32.0,"currency_code":"AUD","in_stock":true},{"title":"48 mm x 50 m \/ Plain, commercial","offer_id":45385987981494,"sku":"TSQT-4850-NL","price":23.0,"currency_code":"AUD","in_stock":true},{"title":"72 mm x 50 m \/ Trade Select branded","offer_id":45385988014262,"sku":"TSQT-7250","price":44.0,"currency_code":"AUD","in_stock":true},{"title":"72 mm x 50 m \/ Plain, commercial","offer_id":45385988047030,"sku":"TSQT-7250-NL","price":34.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TSQT-4850_QuickTape.jpg?v=1787844979"},{"product_id":"trade-select-double-sided-fixing-tape","title":"Trade Select Double Sided Fixing Tape 38mm x 50m","description":"\u003cp\u003eTrade Select Double Sided Fixing Tape holds a membrane to a steel stud without a fixing through it. 0.150 mm double sided acrylic on a PET carrier, 38 mm wide, 50 m roll, 8 rolls to a carton.\u003c\/p\u003e\n\u003ch3\u003eWhy not just screw it on\u003c\/h3\u003e\n\u003cp\u003eEvery fastener through a wrap is a hole in the air barrier and a thermal bridge through the frame. On a steel frame that matters twice over. A vertical strip of this tape from top plate to bottom plate holds the membrane while the cladding goes on, and the seal it makes is continuous rather than a line of punctures.\u003c\/p\u003e\n\u003ch3\u003eBonds to steel\u003c\/h3\u003e\n\u003cp\u003eAdhesion to steel is 20 N\/25 mm. Steel and treated timber are low surface energy materials, which is where cheap double sided tapes fail, and the acrylic adhesive here is chosen for exactly that. It conforms to irregular surfaces and holds from minus 30 to plus 121 degrees.\u003c\/p\u003e\n\u003ch3\u003eHow it is used\u003c\/h3\u003e\n\u003cp\u003eRun a continuous vertical strip down the centre of the stud from top plate to bottom plate, then bring the membrane onto it. Surfaces must be clean, dry and free of dust and oil, because poor preparation and moisture are what kill the bond.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eHand tearable, good UV and temperature resistance. Full figures and the wall framing sequence are in the table below and in the Ametalin sheet.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"38 mm x 50 m","offer_id":45385988079798,"sku":"TSDSFT-3850","price":43.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/TSDSFT-3850_Double-sided-Fixing-Tape.jpg?v=1787844980"},{"product_id":"ametalin-cap-nails","title":"Ametalin Cap Nails™ Box of 250","description":"\u003cp\u003eAmetalin Cap Nails are collated strips of ten nails, each with a 25 mm impact resistant polymer cap on a 25 mm ring shank galvanised nail. Box of 250, supplied as 25 strips.\u003c\/p\u003e\n\u003ch3\u003eWhy a cap rather than a staple\u003c\/h3\u003e\n\u003cp\u003eA staple holds a membrane by two thin wire legs. Ametalin put the holding power of a cap nail at over twenty times a plain nail or staple, because the cap spreads the wind load across 25 mm of membrane instead of concentrating it on a slit. On an exposed site, or on a frame that will stand wrapped for weeks before the cladding arrives, that is the difference between a wrap that is still on the wall and one that has torn off at every fixing.\u003c\/p\u003e\n\u003ch3\u003eIt also seals the hole it makes\u003c\/h3\u003e\n\u003cp\u003eThe cap sits over the penetration, so the fixing point stays sealed against air, vapour and water rather than becoming a leak in the barrier.\u003c\/p\u003e\n\u003ch3\u003eTimber framing\u003c\/h3\u003e\n\u003cp\u003eThese are for timber. Fix at 300 mm centres on a timber framed cavity wall and 150 mm centres direct to stud, before the cladding goes on. On a foam cored product such as \u003ca href=\"\/products\/thermalbreak-7\"\u003eThermalBreak 7\u003c\/a\u003e, drive the cap so it holds without crushing the foam. For steel framing, use \u003ca href=\"\/products\/trade-select-double-sided-fixing-tape\"\u003eDouble Sided Fixing Tape\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003ch3\u003eHow to use the strip\u003c\/h3\u003e\n\u003cp\u003eTake one strip of ten from the box, place the point of the last cap nail where the fixing goes, centre the cap on the stud, tap to start then drive it home, and twist the rest of the gang off. End tabs let you use the last cap in the strip.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"Box of 250","offer_id":45385989685430,"sku":"CN-250","price":20.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/CAP-NAILS-FROM-DRIVE-7.jpg?v=1787845170"},{"product_id":"ametalin-non-combustible-insulation-flashing-tape","title":"Ametalin DtS Non-combustible Insulation Flashing Tape 150mm x 25m","description":"\u003cp\u003eAmetalin DtS Non-combustible Insulation Flashing Tape is a 150 mm wide self-adhering membrane made from non-combustible aluminium foil bonded to non-combustible E-glass fabric, with a thick solvent acrylic adhesive and a split release liner. 25 m roll.\u003c\/p\u003e\n\u003ch3\u003eMade for the details a fire rated wall gets judged on\u003c\/h3\u003e\n\u003cp\u003eType A and B constructions are usually well specified across the wall face and then let down at the openings. This is the flashing tape for those transitions: around windows and doors, at penetrations, and where a wall wrap changes plane or meets another material. The backing meets the NCC Volume One non-combustible material provisions, so the detail does not become the weak point in a Deemed-to-Satisfy claim.\u003c\/p\u003e\n\u003ch3\u003eThe split liner is not a minor feature\u003c\/h3\u003e\n\u003cp\u003eA 150 mm tape at a window reveal has to go on in two planes. The split liner lets you release half the width, set the line, then peel the rest and work it into the return. Trying to do that with a full width liner on a 150 mm tape is how creases and gaps start.\u003c\/p\u003e\n\u003ch3\u003ePerformance\u003c\/h3\u003e\n\u003cp\u003eService range minus 30 to plus 120 degrees. Vapour sealing and puncture resistant, with a solvent acrylic adhesive chosen so it stays flexible at both ends of the range and does not harden with age. Ametalin also flag it for high wind areas, where the sustained load on a lap is the thing that pulls a lesser tape off.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eSurfaces must be clean, dry and free of oil. Work the tape down over its full width so there is no air trapped in the return.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"150 mm x 25 m","offer_id":45385989718198,"sku":"NCFT-15025-NL","price":57.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Ametalin-Non-combustible-Insulation-Flashing-Tape_1024-x-1024-px-01.jpg?v=1787845172"},{"product_id":"ametalin-thermalbreak-strips-r025","title":"Ametalin ThermalBreak® Strips R0.25 Pack of 50","description":"\u003cp\u003eAmetalin ThermalBreak Strips are dual density XPE foam strips with a self adhesive back, run down the outside of a steel frame to break the thermal bridge between the framing and the cladding. 43 mm wide, 2.75 m long folded to 1375 mm, 12 mm thick. Pack of 50 strips.\u003c\/p\u003e\n\u003ch3\u003eWhy a steel frame needs one\u003c\/h3\u003e\n\u003cp\u003eSteel conducts heat roughly a thousand times better than timber. A steel stud that touches both the lining and the cladding carries heat straight through the wall regardless of how much batt sits between the studs, and the cold line it creates on the inside face is where condensation shows up first. The NCC requires an R0.2 thermal break in these situations. This strip is tested at R0.25 to ASTM C518, so it clears the requirement with margin.\u003c\/p\u003e\n\u003ch3\u003eDual density, which is the useful part\u003c\/h3\u003e\n\u003cp\u003eA high density XPE face gives the cladding a firm base to fix against, and a medium density core underneath conforms to an imperfect frame. A single density foam has to pick one of those and give up the other.\u003c\/p\u003e\n\u003ch3\u003eIt also drains\u003c\/h3\u003e\n\u003cp\u003eThe strip lifts the cladding off the membrane, which creates a drainage plane for water to escape and lets the wall breathe. It is termite, mould and mildew resistant, and it seals around membrane fixings.\u003c\/p\u003e\n\u003ch3\u003eWhich strip to buy\u003c\/h3\u003e\n\u003cp\u003eThis is the XPE foam version, R0.25. Where the construction has to be non-combustible, use the \u003ca href=\"\/products\/ametalin-non-combustible-thermalbreak-strip\"\u003eNon-combustible ThermalBreak Strip\u003c\/a\u003e instead. If the job also needs a 20 mm drained and ventilated cavity, look at \u003ca href=\"\/products\/ametalin-thermalcav-drainage-battens\"\u003eThermalCav Drainage Battens\u003c\/a\u003e, which do both at R0.26.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eCuts to length with a knife. Peel the liner, centre the strip on the framing member and press it home, then get the cladding on without delay. Surfaces have to be clean and dry.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"43 mm x 2.75 m x 12 mm, pack of 50","offer_id":45385990799542,"sku":"TBS-432750","price":526.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Ametalin-R0.25-ThermalBreak-Strip_TBSTRIP-432750_02_1024-x-768px.jpg?v=1787845244"},{"product_id":"ametalin-non-combustible-thermalbreak-strip","title":"Ametalin Non-combustible ThermalBreak® Strip R0.2","description":"\u003cp\u003eAmetalin Non-combustible ThermalBreak Strip is a 10 mm high temperature insulation felt, made to give an R0.2 thermal break on a steel frame without introducing any combustible material. Stocked as 45 mm x 1.2 m strips in packs of 50, self-adhesive or without adhesive, and as 90 mm x 1.2 m self-adhesive strips in packs of 25.\u003c\/p\u003e\n\u003ch3\u003eThe problem it solves\u003c\/h3\u003e\n\u003cp\u003eEvery steel frame that touches its cladding needs a thermal break, and the NCC asks for R0.2. On a normal job a foam strip does that. In a Type A or Type B construction, or a facade that has to be non-combustible, a foam strip is the one line item that quietly breaks the claim. This strip is Not Deemed Combustible when tested to AS 1530.1, so it can go into those walls.\u003c\/p\u003e\n\u003ch3\u003eThe numbers\u003c\/h3\u003e\n\u003cp\u003eMaterial R-value R0.2 at 23 degrees to AS\/NZS 4859:2018, thermal conductivity 0.05 W\/m·K, density 288 kg\/m³, compression rate over 300 kPa and a maximum temperature of 1300 degrees. It complies with AS 3959-2018 for residential and commercial systems up to and including BAL-FZ.\u003c\/p\u003e\n\u003ch3\u003eWhere it goes\u003c\/h3\u003e\n\u003cp\u003eContinuous facades in Type A and B construction, fire rated boundary walls, and any steel frame where R0.2 is required and the material has to be non-combustible. Ametalin also flag it for NCC 2022 vapour permeable roofs in all BALs.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eCuts to length, chemically stable and compression resistant. Termite, mould and mildew resistant. It goes on the outside of the framing after the membrane, and the cladding should follow straight away. The self-adhesive strip peels and presses on. The strip without adhesive is held with flat head screws or short pieces of tape, which can come out as the cladding goes on. Other widths and lengths are made to order.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"45 mm x 1.2 m x 10 mm, self-adhesive, pack of 50","offer_id":45385990865078,"sku":"NCTBSA-451200","price":822.0,"currency_code":"AUD","in_stock":true},{"title":"45 mm x 1.2 m x 10 mm, no adhesive, pack of 50","offer_id":67644886876342,"sku":"NCTBS-451200","price":773.0,"currency_code":"AUD","in_stock":true},{"title":"90 mm x 1.2 m x 10 mm, self-adhesive, pack of 25","offer_id":67644886909110,"sku":"NCTBSA-901200","price":1055.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Ametalin-ThermalBreak-Strips-1600-px.jpg?v=1787845245"},{"product_id":"ametalin-cavity-drainage-battens","title":"Ametalin Cavity Drainage Battens™ 10mm Pack of 50","description":"\u003cp\u003eAmetalin Cavity Drainage Battens are triple layer high density polypropylene strips with an open air flow core and a self adhesive back. They hold the cladding 10 mm off the membrane so the cavity can drain and ventilate. 45 mm x 1.2 m x 10 mm, pack of 50.\u003c\/p\u003e\n\u003ch3\u003eWhat a drained cavity actually buys you\u003c\/h3\u003e\n\u003cp\u003eCladding fixed hard against a wall wrap has nowhere for incidental water to go and no air movement to dry it. A batten turns that contact into a cavity, and the cavity does three jobs at once: it drains, it ventilates, and it separates the cladding from the frame thermally. On a metal roof it also keeps the dew point on the underside of the roof sheet rather than on the membrane, which is where the drips come from.\u003c\/p\u003e\n\u003ch3\u003eStrong enough to fix through\u003c\/h3\u003e\n\u003cp\u003eCompression resistance is 500 kPa, it takes normal foot traffic, and it resists impact from cladding installation and screw pull. Thermal resistance is R0.15 in situ, and long term heat resistance is 90 degrees.\u003c\/p\u003e\n\u003ch3\u003eDouble up for 20 mm\u003c\/h3\u003e\n\u003cp\u003eTwo thicknesses give a 20 mm gap, which is what the NCC 2022 air gap and ventilation provisions call for in Volume One F8D5 and J4D3 and Housing Provisions 10.8.3 and 13.2.2. If you want 20 mm in one piece and a full R0.2 thermal break, use \u003ca href=\"\/products\/ametalin-thermalcav-drainage-battens\"\u003eThermalCav Drainage Battens\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eNo temporary fixings needed. Clean and dry the framing, peel the liner, centre the batten on the member, press it home by hand and get the cladding on without delay. Runs vertically or horizontally. Termite, mould and mildew resistant, and UV and fire rated.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"45 mm x 1.2 m x 10 mm, pack of 50","offer_id":45385992011958,"sku":"CDB-451200","price":287.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Ametalin-Cavity-Drainage-Battens_1024-x-1024-px.jpg?v=1787845318"},{"product_id":"ametalin-thermalcav-drainage-battens","title":"Ametalin ThermalCav™ Drainage Battens 20mm Pack of 25","description":"\u003cp\u003eAmetalin ThermalCav Drainage Battens do two jobs with one strip. 20 mm of high density polypropylene and XPE gives an R0.26 thermal break and a 20 mm drained, ventilated cavity at the same time. 45 mm x 1.2 m, pack of 25.\u003c\/p\u003e\n\u003ch3\u003eOne product instead of two\u003c\/h3\u003e\n\u003cp\u003eA steel frame under the NCC 2022 rules needs an R0.2 thermal break, and a modern wall or roof build-up usually wants a 20 mm ventilated cavity as well. Doing that with a thermal break strip plus a separate batten means two products, two fixing operations and a stack-up you have to think about. ThermalCav is both at once, at R0.26 in situ, which clears R0.2 with margin.\u003c\/p\u003e\n\u003ch3\u003eThe 20 mm matters\u003c\/h3\u003e\n\u003cp\u003eNCC 2022 Volume One F8D5 and J4D3, and Housing Provisions 10.8.3 and 13.2.2, are the clauses that drive air gaps and ventilation in these assemblies. 20 mm in one piece removes the doubling up you would otherwise do with a 10 mm batten.\u003c\/p\u003e\n\u003ch3\u003eFix straight through it\u003c\/h3\u003e\n\u003cp\u003eCompression resistance is 497 kPa over a 50 x 50 mm area and it takes normal foot traffic. Fixings are meant to pass through the batten into the framing behind, so adjust screw length for the extra 20 mm. It cuts, drills and screws without splitting.\u003c\/p\u003e\n\u003ch3\u003eUnder a metal roof\u003c\/h3\u003e\n\u003cp\u003eIt holds the sheet off the sarking, so the dew point stays on the underside of the roof cladding and the cavity ventilates it away rather than letting condensation form on the membrane.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eSelf adhesive, no temporary fixings. Clean dry framing, peel the liner, centre it on the member, press it home, cladding straight after. Termite, mould and mildew resistant, UV and fire rated, long term heat resistance 90 degrees.\u003c\/p\u003e","brand":"Ametalin","offers":[{"title":"45 mm x 1.2 m x 20 mm, pack of 25","offer_id":45385992044726,"sku":"TCDB-451200","price":216.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Ametalin-ThermalCav-Drainage-Batten_1024-x-1024.jpg?v=1787845320"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/collections\/brand-ametalin.png?v=1787856354","url":"https:\/\/awbm.com.au\/collections\/ametalin-building-membrane.oembed?page=2","provider":"AWBM","version":"1.0","type":"link"}