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Tyvek by DuPont is the industry-standard house wrap for residential and commercial building envelope construction across Canada. Available at Windsor Plywood, Tyvek housewrap and flashing tape products create a continuous weather-resistant barrier that blocks wind and moisture infiltration while allowing water vapour to escape from within the wall assembly. Proper installation of Tyvek at windows, doors, and penetrations is a critical step in preventing moisture damage, improving energy efficiency, and ensuring long-term structural performance in Canadian conditions. Windsor Plywood carries Tyvek HomeWrap and coordinating Tyvek Tape for a complete air and moisture barrier system. Visit your local Windsor Plywood to confirm current stock and discuss your building envelope requirements with our team.
Frequently Asked Questions
What house wrap and flashing tape does Windsor Plywood carry?
Windsor Plywood carries Tyvek HomeWrap house wrap, Tyvek Tape, and Nichigo G-Tape butyl rubber flashing tape. These products provide the air and moisture barrier components required for a complete building envelope system in residential and commercial construction.
What is the purpose of house wrap in a wall assembly?
House wrap serves as a weather-resistant barrier (WRB) that blocks bulk water and wind-driven rain from infiltrating the wall assembly while allowing water vapour to escape outward from within the wall. It is installed over the structural sheathing before cladding and is a code-required component of most Canadian exterior wall assemblies.
When is flashing tape required versus house wrap alone?
Flashing tape is required at all critical transitions in the building envelope — window and door rough openings, seams in the house wrap, penetrations through the envelope for pipes and conduit, and at deck ledger connections. House wrap alone does not provide adequate water management at these high-risk transition points. Flashing tape creates the lapped, sealed connection at transitions that prevents water from bypassing the WRB system.
How do Tyvek and Nichigo G-Tape work together?
Tyvek HomeWrap provides the continuous field coverage of the wall surface. Nichigo G-Tape seals the seams, laps, and transitions in the Tyvek system — at horizontal overlaps, at window and door openings, at inside and outside corners, and at penetrations. Using a compatible tape at all seams is essential; unsealed seams in house wrap can allow air and moisture infiltration that defeats the purpose of the barrier.
Does house wrap replace a vapour barrier in a Canadian wall assembly?
No. House wrap and vapour barriers are separate and different components of a Canadian wall assembly. House wrap is a vapour-permeable weather-resistant barrier on the exterior of the sheathing. A vapour barrier (typically poly sheeting) goes on the warm side of the insulation inside the wall to control winter vapour drive from inside the heated space into the wall. Both are required in most Canadian climate zones — check the NBC and your local building code for specific requirements.