{"id":34707,"date":"2018-01-04T15:47:30","date_gmt":"2018-01-04T21:47:30","guid":{"rendered":"https:\/\/can.wrmeadows.com\/?p=34707"},"modified":"2025-12-18T12:02:57","modified_gmt":"2025-12-18T18:02:57","slug":"air-shield-xlt-canada","status":"publish","type":"post","link":"https:\/\/can.wrmeadows.com\/en-ca\/air-shield-xlt-canada\/","title":{"rendered":"AIR-SHIELD XLT"},"content":{"rendered":"<p><a name=\"ds\"><\/a><\/p>\n<h3 class=\"section\">Product Data Sheet<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/hdgreen.jpg\" alt=\"Product Data, W. R. MEADOWS\" width=\"678\" height=\"150\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<table border=\"0\" width=\"100%\" cellspacing=\"2\" cellpadding=\"2\">\n<tbody>\n<tr>\n<td width=\"9%\"><strong><a href=\"https:\/\/can.wrmeadows.com\/data-sheets\/ca\/#0727\">07 27 26<\/a><\/strong>\n<\/td>\n<td width=\"21%\">\n<p align=\"RIGHT\">DATA SHEET 5115-675<\/p>\n<\/td>\n<td width=\"19%\"><a href=\"https:\/\/can.wrmeadows.com\/data\/5115-675.pdf\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/pdfclick.gif\" alt=\"\" width=\"119\" height=\"23\" border=\"0\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>AIR-SHIELD<sub>\u2122<\/sub>\u00a0XLT<\/strong><br \/>\n<strong>Self-Adhering Air\/Vapour and Liquid Moisture Barrier<\/strong><\/p>\n<p><strong>DESCRIPTION<\/strong><br \/>\nAIR-SHIELD XLT extra-low temp self-adhering air barrier is part of a total W. R. MEADOWS system to complete the building envelope.\u00a0 It is a roll-type product that is nominally 40 mils thick, and is ideal for cold weather applications. The membrane&#8217;s controlled thickness is fabricated from cross-laminated polyethylene bonded to specially modified asphalt.<\/p>\n<p>This unique, self-adhesive membrane, protected by a special release paper, is strong and durable. It remains flexible when surface mounted and will adhere to most primed surfaces at minimum temperatures of -18\u00b0 C. The membrane provides excellent protection as a tough barrier or flashing that won&#8217;t shrink, sag, dry out, crack, or rot. It offers excellent resistance to punctures during installation. The self-healing characteristics of AIR-SHIELD XLT facilitate recovery if minimal damage is sustained under normal use applications; i.e., when penetrated with self-tapping screws or nails.<\/p>\n<p><strong>USES<\/strong><br \/>\nAIR-SHIELD XLT self-adhering air\/vapour and liquid moisture barrier is designed for a variety of uses. Primary applications include cavity wall and masonry wall construction. AIR-SHIELD XLT works equally well as an air and\/or vapour barrier on precast concrete, cast-in-place concrete, masonry (concrete block), interior and exterior gypsum board, Styrofoam, primed steel, aluminum mill finish, anodized aluminum, primed galvanized metal, drywall, and plywood.<\/p>\n<p><strong>FEATURES\/BENEFITS<\/strong><\/p>\n<ul>\n<li>Low permeability \u2013 prevents the transmission of air and inhibits moisture vapour through porous building materials.<\/li>\n<li>Superior adhesion, even down to -18\u02da C.<\/li>\n<li>Cross-laminated polyethylene film has excellent tensile strength, elongation, and tear resistance.<\/li>\n<li>Modified membrane is flexible at low temperatures.<\/li>\n<li>Excellent adhesion to prepared substrates of precast concrete, cast-in-place concrete, masonry (concrete block), interior and exterior gypsum board, Styrofoam, primed steel, aluminum mill finish, anodized aluminum, primed galvanized metal, drywall, and plywood.<\/li>\n<li>Self-sealing around fasteners; for more information, see <a href=\"https:\/\/can.wrmeadows.com\/air-barriers\/technical-bulletin-fastener-penetration-through-air-shield-membranes\/\">TECHNICAL BULLETIN: FASTENER PENETRATION THROUGH AIR-SHIELD MEMBRANES<\/a>.<\/li>\n<li>No flame required.<\/li>\n<\/ul>\n<p><strong>PACKAGING<\/strong><br \/>\nAIR-SHIELD XLT is packaged in rolls measuring 0.97 m (38.5&#8243;) x 22.86 m (75&#8242;).\u00a0 AIR-SHIELD XLT can also be cut to desired width.<\/p>\n<p>Optional sizes include 101.60 mm (4&#8243;), 152.4 mm (6&#8243;), 228.6 mm (9&#8243;), 304.8 mm (12&#8243;), 406.4 mm (16&#8243;), 457.2 mm (18&#8243;), 508 mm (20&#8243;) and 609.6 mm (24&#8243;).<\/p>\n<p><strong>STORAGE<\/strong><br \/>\nAIR-SHIELD XLT should be stored palletized and protected from rain and\/or physical damage. Do not store at temperatures above 32.2\u00ba C for extended periods of time. Do not leave membrane exposed to direct sunlight. Do not double-deck pallets. Store away from sparks or flames. Outdoors, store AIR-SHIELD XLT on pallets and completely cover.<\/p>\n<p><strong>COVERAGE<\/strong><br \/>\nCoverage is approximately 22.3 m\u00b2 (240 ft.<sup>2<\/sup>). Net coverage when lapped 63.5 mm (2.5&#8243;) is 21.1 m\u00b2 (228 ft.<sup>2<\/sup>).<\/p>\n<p><strong>SPECIFICATIONS<\/strong><\/p>\n<ul>\n<li>Meets CAN\/CGSB-51-33, Type I Water Vapour Permeance Requirements.<\/li>\n<li>2015 National Building Code of Canada<\/li>\n<\/ul>\n<p><strong>MAINTAIN ENERGY EFFICIENCY<\/strong><br \/>\nAIR-SHIELD XLT provides an effective barrier to air exfiltration and infiltration, reducing condensation within the wall assembly and increasing the efficiency of a building&#8217;s mechanical system.\u00a0 Wet insulating materials lose much of their &#8220;R&#8221; factor performance characteristics, reducing the energy efficiency of the structure. W. R. MEADOWS&#8217; thermal and moisture protection products play a key role in maintaining the structure&#8217;s energy efficiency and aiding in the integrity of other structural systems, such as insulation.<\/p>\n<table width=\"100%\" class=\"table\">\n<tbody>\n<tr>\n<td colspan=\"2\"><strong>TECHNICAL DATA<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\n<strong>TEST<\/strong>\n<\/td>\n<td><strong>RESULTS<\/strong>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<strong>Colour<\/strong>\n<\/td>\n<td>White<\/td>\n<\/tr>\n<tr>\n<td>\n<strong>Thickness<\/strong>\n<\/td>\n<td>40 mils (1 mm)<\/td>\n<\/tr>\n<tr>\n<td><strong>Pliability @ -32\u00b0 C<\/strong>\n<\/td>\n<td>No effect<\/td>\n<\/tr>\n<tr>\n<td><strong>Tensile Strength Film<\/strong>\n<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>ASTM D412 modified (MD)<\/td>\n<td>27.6 MPa (4,000 psi)<\/td>\n<\/tr>\n<tr>\n<td>ASTM D882 (MD)<\/td>\n<td>4.1 N\/mm (23.5 lb.\/in.)<\/td>\n<\/tr>\n<tr>\n<td>\n<strong>Elongation Film<\/strong>\n<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>ASTM D412 modified (MD, %)<\/td>\n<td>400 (Typical)<\/td>\n<\/tr>\n<tr>\n<td>ASTM D882 (MD, %)<\/td>\n<td>400 Min.<\/td>\n<\/tr>\n<tr>\n<td><strong>Puncture Resistance <\/strong>\n<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>ASTM E154<\/td>\n<td>178 N (40 lbf) Min.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><strong>Water Vapour Permeance (free film)<\/strong>\n<\/td>\n<\/tr>\n<tr>\n<td>ASTM E96, Procedure B<\/td>\n<td>0.035 Perms<\/td>\n<\/tr>\n<tr>\n<td><strong>Water Absorption (% by weight)<\/strong>\n<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>ASTM D1970<\/td>\n<td>0.25 Max.<\/td>\n<\/tr>\n<tr>\n<td>ASTM D570-81<\/td>\n<td>0.1 Max.<\/td>\n<\/tr>\n<tr>\n<td>Application Temperature<\/td>\n<td>-18\u00ba C Min.<\/td>\n<\/tr>\n<tr>\n<td><strong>Low Temperature Flexibility <\/strong><br \/>\n<strong>@ (-30\u00ba C) (CGSB 37GP56m)<\/strong>\n<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td><strong>Service Temperature<\/strong>\n<\/td>\n<td>-40\u00ba &#8211; 70\u00ba C<\/td>\n<\/tr>\n<tr>\n<td><strong>Lap Peel Strength @ 4\u00ba C (ASTM D903, 180\u00ba Bend)<\/strong>\n<\/td>\n<td>1.75 N\/mm<br \/>\n(10 lbf\/in) width<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>APPLICATION<\/strong><br \/>\n<strong>Surface Preparation \u2026<\/strong> All surfaces to be protected must be clean, dry, frost-free, and smooth.\u00a0 Remove any sharp protrusions and repair all defects.\u00a0 Prepare substrate per manufacturer&#8217;s instruction prior to application of membrane.<\/p>\n<p>All surfaces to receive AIR-SHIELD XLT must be clean of oil, dust, and excess mortar. Strike masonry joints flush.\u00a0 Concrete surfaces must be smooth and without large voids, spalled areas, or sharp protrusions.\u00a0 Concrete must<\/p>\n<p>be cured a minimum of 14 days and must be dry before AIR-SHIELD XLT is applied.\u00a0 Where curing compounds are used, they must be clear resin-based, without oil, wax, or pigments.<\/p>\n<p><strong>Conditioning <\/strong> <strong>\u2026<\/strong> All surfaces to which AIR-SHIELD XLT is to be applied must be conditioned.\u00a0\u00a0 Use <a href=\"https:\/\/can.wrmeadows.com\/en-ca\/mel-prime-canada\/\">MEL-PRIME<sub>\u2122<\/sub><\/a> from W. R. MEADOWS in colder weather and at higher application temperatures for maximum adhesion.\u00a0 MEL-PRIME may be applied with a roller to an area that is to be covered the same day. Uncovered areas must be re-conditioned the next day. See MEL-PRIME container for complete application, drying information, and precautions.<\/p>\n<p><strong>Application Method \u2026<\/strong> AIR-SHIELD XLT can be applied at minimum temperatures of -18\u00ba C.\u00a0 Apply membrane to addressed surface by removing the release paper and rolling the membrane firmly into place. Remove the release paper only as the membrane is being applied. Ensure the membrane is fully adhered and remove all wrinkles and\/or fish mouths.\u00a0 Cut the membrane with a utility knife to detail around protrusions and masonry reinforcing. Seal all end laps and protrusions with <a href=\"https:\/\/can.wrmeadows.com\/en-ca\/pointing-mastic-canada\/\">POINTING MASTIC<\/a> from W. R. MEADOWS. Overlap subsequent courses of membrane a minimum of 63.5 mm (2.5&#8243;). Vertical terminations of AIR-SHIELD XLT should either be tied into the wall system or mechanically fastened with <a href=\"https:\/\/can.wrmeadows.com\/en-ca\/termination-bar-canada\/\">TERMINATION BAR<\/a> from W. R. MEADOWS.\u00a0 AIR-SHIELD XLT is not designed for permanent exposure.\u00a0 Good construction practices call for application of insulation as soon as possible to protect the air barrier.<\/p>\n<table width=\"100%\" border=\"1\" cellpadding=\"3\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td colspan=\"6\"><strong>Air Leakage Tested per ASTM E283, ASTM E2178-01, and ASTM E2357<\/strong>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" align=\"center\"><strong>Pressure<\/strong>\n<\/td>\n<td align=\"center\"><strong>Air Leakage<\/strong><br \/>\n<strong>(National Building<\/strong><br \/>\n<strong>Code of Canada<\/strong><br \/>\n<strong>Requirement)<\/strong>\n<\/td>\n<td align=\"center\"><strong>Results for<\/strong><br \/>\n<strong>AIR-SHIELD<\/strong>\n<\/td>\n<td align=\"center\"><strong>Air Leakage<\/strong><br \/>\n<strong>(National Building<\/strong><br \/>\n<strong>Code of Canada<\/strong><br \/>\n<strong>Requirement)<\/strong>\n<\/td>\n<td align=\"center\"><strong>Results for<\/strong><br \/>\n<strong>AIR-SHIELD<\/strong>\n<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">Pa<\/td>\n<td align=\"center\">Lb.\/ft.\u00b2<\/td>\n<td align=\"center\">L\/S\/M.\u00b2<\/td>\n<td align=\"center\"><\/td>\n<td align=\"center\">cfm\/ft.\u00b2<\/td>\n<td align=\"center\"><\/td>\n<\/tr>\n<tr>\n<td align=\"center\"><strong>75<\/strong>\n<\/td>\n<td align=\"center\"><strong>1.57<\/strong>\n<\/td>\n<td align=\"center\">0.02<\/td>\n<td align=\"center\">&lt;0.02<\/td>\n<td align=\"center\">0.004<\/td>\n<td align=\"center\">&lt;0.004<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Cleanup \u2026<\/strong> Tools, etc., can be cleaned with mineral spirits, paint thinner, or aromatic solvent.<\/p>\n<p><strong>HEALTH AND SAFETY<\/strong><br \/>\nNo adverse effects expected with normal product use.\u00a0 Cotton work gloves and safety goggles are recommended. Refer to Safety Data Sheet for complete health and safety information.<\/p>\n<p><strong>ACCESSORIES<\/strong><br \/>\n<strong>MEL-PRIME <\/strong>\u2026 Adhesive can be used at temperatures down to -18\u00b0 C and above.\u00a0 .<\/p>\n<p><strong>TERMINATION BAR <\/strong> \u2026 As an option, TERMINATION BAR may be used to mechanically fasten the membrane.<\/p>\n<p><strong>POINTING MASTIC <\/strong>\u2026 Used for sealing top edges of TERMINATION BAR.<\/p>\n<p><strong>MAINTAIN ENERGY EFFICIENCY<\/strong><br \/>\nAIR-SHIELD XLT provides an effective barrier to air exfiltration and infiltration, reducing condensation within the wall assembly and increasing the efficiency of a building&#8217;s mechanical system.\u00a0 Wet insulating materials lose much of their &#8220;R&#8221; factor performance characteristics, reducing the energy efficiency of the structure. W. R. MEADOWS&#8217; thermal and moisture protection products play a key role in maintaining the structure&#8217;s energy efficiency and aiding in the integrity of other structural systems, such as insulation.<\/p>\n<p><strong>PRECAUTIONS<\/strong><br \/>\nThe rubberized asphaltic membrane component (soft black side) may not be compatible with most  polyurethanes or silicones.  W. R. MEADOWS offers a line of approved products as part of our complete system.  Please reference the appropriate detail for your specific application.  When used with other products than recommended, ensure compatibility through either testing or written approval from the manufacturer.<\/p>\n<p><strong>MASTERFORMAT NUMBER AND TITLE <\/strong><br \/>\n07 27 13 &#8211; Modified Bituminous Sheet Air Barriers<\/p>\n<p><strong>LEED INFORMATION<\/strong><br \/>\nMay help contribute to LEED credits:<\/p>\n<ul>\n<li>EAp2: Minimum Energy Performance<\/li>\n<li>EAc2: Optimize Energy Performance<\/li>\n<li>MRc9: Construction and Demolition Waste Management<\/li>\n<\/ul>\n<p>2019-06<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/foot-can.jpg\" alt=\"\" width=\"640\" height=\"98\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/footer-can.jpg\" alt=\"warranty\" width=\"614\" height=\"212\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>AIR-SHIELD XLT extra-low temp self-adhering air barrier is part of a total W. R. MEADOWS system to complete the building envelope.  It is a roll-type product that is nominally 40 mils thick, and is ideal for cold weather applications. The membrane&#8217;s controlled thickness is fabricated from cross-laminated polyethylene bonded to specially modified asphalt.<\/p>\n","protected":false},"author":1,"featured_media":22942,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[17857,132],"tags":[],"class_list":{"0":"post-34707","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-building-envelope-en-ca","8":"category-air-barriers-sheet-applied-en-ca","9":"entry"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>AIR-SHIELD XLT (Canada) - Self-Adhering Air\/Vapour and Liquid Moisture Barrier - W. 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