Insulation and soundproofing
Want better protection from cold and heat loss? Use effective thermal insulation, like mineral wool or an air barrier, to improve the comfort and performance of your walls and ceilings.
- 3MThrough Wall Flashing Tape - 3015TWF - 9" x 75'This through wall flashing tape is designed for sealing wall openings such as windows and doors during construction or renovation. Model 3015TWF provides a durable waterproof barrier at wall penetrations, protecting against moisture infiltration at vulnerable transition zones. Suitable for residential and commercial framing applications where a reliable air and water barrier is required at rough openings.$96.68
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- 3MAir & Vapour Barrier Through-Wall Flashing Tape - 6" x 75'This 3015TWF through-wall flashing tape provides a continuous air and vapour barrier at wall penetrations and transitions. Its black, slit-liner backing allows precise, wrinkle-free application around complex wall assemblies. Suited for both residential and commercial construction, it seals gaps at windows, doors, and structural interfaces where air infiltration and moisture migration are primary concerns.$64.78
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- Truck delivery
- 3MAir & Vapour Barrier Through-Wall Flashing Tape - 4" x 75'This black through-wall flashing tape provides a continuous air and vapour barrier at wall penetrations, transitions, and critical seams in building envelope assemblies. Its slit liner (2-2 split) allows precise application around corners and irregular surfaces. Designed for both residential and commercial construction, it bonds reliably to common substrates including sheathing, housewraps, and rigid insulation boards to prevent air infiltration and moisture intrusion.$44.48
- 3MThrough Wall Flashing Tape - 3015TWF - 12" x 75'This through wall flashing tape is designed to seal wall openings and prevent water infiltration around doors, windows, and other wall penetrations. The roll measures 12 inches wide by 75 feet long, providing ample coverage for residential and commercial projects. Its self-adhesive backing bonds reliably to common substrates, creating a durable waterproof barrier at critical building envelope junctions. Suited for both professional contractors and experienced DIY users, this flashing tape simplifies installation while delivering lasting weathertight performance at wall openings.$129.38
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- 3MThrough-Wall Flashing Tape - 3015TWF - 16" x 75'This through-wall flashing tape is designed to seal wall openings such as windows, doors, and penetrations against air and moisture infiltration. Its self-adhesive backing ensures a firm bond to a variety of substrates, including wood, concrete, and masonry. The large-format 16" x 75' roll is well-suited to commercial and residential construction projects requiring reliable, continuous coverage. Each roll provides generous linear footage, reducing interruptions on the job site. Ideal for professionals and experienced DIY users working on building envelopes.$172.48
- TITANHousewrap - BMR - 9.5' x 100'This synthetic building wrap is made of non-woven polypropylene with a breathable layer. Airtight and waterproof, it blocks infiltration while allowing vapour to escape thanks to its breathable properties, thus preventing condensation and mould. It can be applied to various materials such as plywood, OSB panels, gypsum, brick, stucco, wood, or vinyl.$129.98
- TITANHousewrap - BMR - 10' x 100'This synthetic building wrap is made of non-woven polypropylene with a breathable coating. Airtight and waterproof, it prevents infiltration while allowing vapour to escape due to its breathable properties, thus preventing condensation and mould. It is compatible with several materials like plywood, OSB panels, gypsum, brick, stucco, wood, or vinyl.$130.98
- TITANHousewrap - BMR - 3' x 100'This synthetic building wrap is made of non-woven polypropylene with a breathable coating. It is airtight and waterproof, preventing infiltration while allowing vapour to escape thanks to its breathable properties, avoiding condensation and mould. It can be applied to various materials such as plywood, OSB panels, gypsum board, brick, stucco, wood, or vinyl.$48.98
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- In-store pickup
- RESISTOSelf-Adhesive Through-Wall Membrane – 12" x 75' – 40 milThis 12" x 75' self-adhesive through-wall membrane provides continuous air- and water-vapor sealing for residential and commercial envelopes. At 40 mils (1 mm), it combines SBS-modified elastomeric bitumen with a trilaminated woven polyethylene facer. The self-adhesive backing speeds installation and supports consistent performance in all-weather conditions. Compatible with spray polyurethane foam insulation, it integrates cleanly into typical wall assemblies. Supplied in roll format, it offers efficient coverage for walls, flashings, transitions, and openings to help maintain a continuous air and vapor barrier across the enclosure.$58.98
- RESISTOSelf-Adhesive Through-Wall Membrane – 9" × 75' – 40 milDesigned for wall assemblies and flashing transitions in residential and commercial applications, this self-adhered through-wall membrane provides continuous air- and water-vapor sealing. The 9" x 75' roll, 40 mil (1 mm) thick, is made of SBS-modified elastomeric bitumen with a trilaminated woven polyethylene facer, compatible with spray polyurethane foam insulation. It helps achieve clean, continuous transitions around openings, wall intersections, and other critical interfaces.$44.98
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- In-store pickup
- Truck delivery
- RESISTOSelf-Adhesive Through-Wall Membrane – 4" x 75' – 1 mmDesigned for through-wall transitions and flashing details in residential and commercial applications, this self-adhered, all-weather membrane helps ensure reliable air- and water-vapor in wall assemblies. The 4" x 75' roll, 1 mm (40 mils) thick, is made of SBS-modified elastomeric bitumen with a trilaminated woven polyethylene facer that is compatible with spray polyurethane foam insulation. Supplied as a continuous roll with straight-cut edges, it integrates smoothly into typical building-envelope systems for new construction and renovation. An nominal 75 lb/in resistance provides a helpful reference during installation planning.$22.98
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- RESISTOSelf-Adhesive Air/Vapor Membrane – 6" x 75' – 40 milSeal through-wall transitions and flashing details with this self-adhesive air and vapor barrier membrane. Supplied as a 6" x 75' roll at 1 mm (40 mils) thickness, it installs in all weather conditions and helps maintain continuous air barrier performance for residential and commercial applications. Made of SBS-modified elastomeric bitumen with a trilaminated woven polyethylene facer, it is compatible with spray polyurethane foam insulation for high-performing assemblies. Designed for walls, openings and transitions, it provides reliable air and water-vapor sealing.$29.98
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- In-store pickup
- Truck delivery
- RESISTOSelf-Adhesive Through-Wall Membrane – 18" x 75', 1 mmThis self-adhesive through-wall membrane seals air and water vapor in commercial and residential building envelopes. The 18" x 75' roll is 1 mm (40 mils) thick and installs in all weather for fast, reliable performance. Made of SBS-modified elastomeric bitumen with a trilaminated woven polyethylene facer, it is compatible with sprayed polyurethane foam insulation, ensuring high-performance assemblies. The roll format simplifies application, creating continuous seals and clean detailing across at transitions.$89.98
- TEXNOVLiquid Membrane Undercoat for Wood - 11 LApply this wood waterproofing membrane as a protective, bonding undercoat before coatings. It rolls or brushes on smoothly and comes in an 11 L format suited to small and medium projects. Beyond surface prep, it can function as an air and vapor barrier on building walls and as a waterproofing layer in projects targeting better air and sound insulation. Suitable for renovations or new work, it supports reliable adhesion and consistent results for professionals and DIY users.$134.98
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- TEXNOVLiquid Membrane Undercoat for Wood - 3.78 LDesigned for wood substrates, this liquid membrane creates a protective, bonding undercoat before applying additional coatings. It rolls or brushes on to form a uniform base and can also serve on building walls as an air/vapor barrier or as a waterproofing membrane when the project requires it. The 3.78 L pail offers a light gray/white matte finish suited to professional work and renovations alike.$67.98
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- BMRAir Barrier Building Wrap – 9' x 100' – Breathable – WhiteManage air movement and incidental moisture at exterior walls with this breathable building wrap. The non-woven polypropylene sheet includes a breathable coating and comes in a 9' x 100' roll for continuous coverage. Lightweight and easy to install, it’s suitable for both new construction and renovation projects. Tested to meet Canadian building code standards, this air barrier delivers reliable, professional-grade protection that ensures long-term performance and structural integrity.$128.98
- BMRInsulating blanket for concreteWith capacities of insulation, this blanket keeps the heat and insures a protection against frost of fresh concrete.$62.98
- Available online
- 7 to 10 day pickup
- RESISTOReflective Insulation - M2V - 48" x 62.6" - 8 mmThis M2V reflective insulation adds a lightweight thermal barrier for renovation and general insulation work. Sized at 48" x 62.6" and 8 mm thick, it includes two layers of air bubbles laminated between metallized polyethylene and polyethylene sheets. The silver reflective surface helps manage heat transfer while keeping the roll easy to install. Compact and versatile, it fits a wide range of residential and commercial applications, offering pratical performance for professionnals.$54.98

















