MOY Lexshield AVB - Self-adhered HDPE Air and Vapour Barrier
Verified by manufacturer 2 months ago
Self-adhered HDPE air and vapour barrier membrane for use in roofs.
Application
Compatible with most fluid applied air barriers and insulation adhesives.
Air barrier uses:
- Cavity walls.
- As a transition membrane for flashing window and door openings.
Air and vapour control layer (AVCL) use:
- Flat roofs.
Description
Self-adhered air and vapour barrier membrane for use in roofs. Cross-laminated, high density polyethylene film-backed with a proprietary high tack adhesive.
Features and benefits:
- Excellent air and vapour barrier properties - Surpasses the industry's most rigourous air and vapour resistance tests.
- Flexible - Remains leak-free, even when subjected to differential expansion and contraction forces or minor cracking in the underlying substrate.
- Tear and puncture resistant - high density film used provides excellent resistance to accidental cuts and tears during installation.
- No primer required - Super tacky adhesive formulation sticks well to virtually any surface; mechanical fastening is not required at plane or direction changes.
- Apply in cold temperatures - Can be applied in temperatures as low as -20°C.
- Seals around fasteners - Lexshield™ self-seals around screw and nail penetrations.
- Offers improved benefits over traditional air and vapour barrier systems at a lower installed cost.
- CE marked and ETA certified.
General information
Color | White |
Material | High density polyethylene (HDPE) |
Shape | Other |
Length | 68580 mm |
Width | 1372 mm |
Height | 0.26 mm |
Warranty description | Manufacturer guidanceFor the duration of the MOY Warranty. |
Uniclass | |
CAWS | H31/45 Air and vapour control membrane H31/261 Air and vapour control membrane P10/310 Air and vapour control layer J31/330 Air and vapour control layer J41/395 Air and vapour control layer |
Specification data - Plastics sheets
Material | High-density polyethylene (PE-HD). |
Purpose | Air and vapour barrier. |
Performance characteristics | |
Tensile strength (minimum) | To ASTM D-882, 49 kPa (7100 psi).Manufacturer guidanceTensile strength at break. |
Tear resistance | To ASTM D-1938, 2.5 kg (tongue); to ASTM D-1004, 3.1 kg (graves). |
Elongation to break | To ASTM D-882, 100%. |
Water vapour resistance (minimum) | To EN 1931, 425 MN.s/g. |
Fire performance | Flame Spread Index to ASTM E84, 5; Smoke Development Index to ASTM E84, 5. |
Third-party certification | European Technical Assessment (ETA) certification. |
Form | Cross-laminated. |
Physical properties | |
Colour | White. |
Weight (minimum) | 18 kg/roll. |
Dimensions | |
Thickness (minimum) | 0.26 mm. |
Width (minimum) | 1372 mm. |
Roll length (minimum) | 68 580 mm. |
Air permeability | To ASTM E2178-03, 0.0023 L/s/m² (at 75 PA P.D.); 0.0074 L/s/m² (at 300 PA P.D.). |
Moisture resistance | To EN 1931, 500,700 μ. |
Water vapour diffusion resistance | To EN 1931, 85 m. Manufacturer guidanceEquivalent air layer thickness Sd. |
Performance characteristics | Type I vapour retarder in accordance with CAN/CGSB-51.22-M89. |
Application temperature | -20°C (minimum). |
Service temperature range | -40° to 93°C. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Canada |
Country of product manufacture | Canada |
Literature
MOY Lexshield AVB