Majvest 200
Majvest 200 is SIGA’s exterior wall membrane: a tough, vapour-permeable weather-resistive barrier engineered to Swiss airtightness standards. It sheds water and blocks wind while letting the assembly dry outward. The entry point to the SIGA system for high-performance and Passive House walls.
Made by SIGA
SIGA is a Swiss company providing products and education to help keep buildings air- and watertight. They are world leaders in innovative building design and testing, with the goal of improving global building and living standards, and they are a go-to for Passive House construction.
Where this product fits
- Stocked at or transferred between all six branches
- Volume pricing by the case or pallet
- Product specialists to confirm fit for your application
More SIGA air and vapour barrier products
Other air and water barrier membranes we carry
Same type of product from other manufacturers, all supplied through our branches. Our specialists can help match movement capability, colour and substrate.
Blueskin SA
Blueskin SA is the peel-and-stick air and vapour barrier membrane that defined the category in Canada.
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Protecto Wall VP
Protecto Wall VP is a vapour-permeable, self-adhered water-resistive air barrier that lets walls dry while keeping air and water out.
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Sopraseal Stick VP
Sopraseal Stick VP is Soprema’s self-adhered, vapour-permeable air and water barrier for above-grade walls.
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ExoAir Air Barriers
ExoAir is Tremco’s air barrier platform, spanning fluid-applied, self-adhered and detail products that tie into their sealant systems for single-source envelope accountability.
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Siplast Monolith VP
Siplast Monolith VP is a vapour-permeable air and water-resistive barrier for the building enclosure, sealing walls against air and bulk water while allowing drying.
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Dryvit Backstop NTX
Dryvit Backstop NTX is a flexible, polymer-based, non-cementitious air and water-resistive barrier membrane for vertical, above-grade exterior walls beneath claddings other than Dryvit EIFS.
View productOther options for the same job
These solve a similar problem a different way. Check the data sheet or ask your branch to confirm they suit your project.
3M 3015 All Weather Flashing Tape
A self-adhered flashing tape built for real Canadian weather, 3M 3015 uses an aggressive acrylic adhesive that bonds in cold temperatures where asphalt-based tapes give up.
View productProtecto 100/40
Protecto 100/40 is a self-adhered flashing membrane trusted for window and door rough openings, sills and envelope details.
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Wigluv Tape
Wigluv is the exterior tape of the SIGA system, sealing membrane laps, sheathing joints and penetrations with adhesion that laughs at cold, damp installation days.
View productChoosing an air barrier system? Tell us the wall assembly and exposure and a product specialist will help match compatible products.
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