CGSB Vapour Barrier

Layfield is proud to be certified to CAN/CGSB-51.34-M86, the Canadian General Standards Board (CGSB) program listing for Polyethylene Vapour Barrier Sheeting for use in Building Construction. We've held this designation in good standing since 1988.

Vapour Barrier film is certified by the CGSB for use in controlling the diffusion of water vapour in building construction. It must satisfy the strict requirements of the standard, which is referenced in the National Building Code. Some of those requirements are listed in the table below.

Vapour Barrier is suitable for use in a variety of applications in above-grade building construction, the interior of below grade building construction, under (concrete) slabs, ground cover, and numerous other applications. This is due in large part to the durability and quality that Layfield builds into it's CGSB products.

 Other possible applications for CGSB Vapour Barrier are:

• Wall and ceiling vapour barrier
• Below concrete slab
• Foundation damp proofing
• Crawl space damp proofing
• Sill Poly
• Plate Poly
• Eave protection Poly  

Layfield's Vapour Barrier is manufactured to exceed the strict specifications of the CGSB. The 51.34 standard has specific requirements, both for the materials that are used to manufacture the poly, and the physical properties of the final product.

External testing is performed every six months by an external lab, at the request of the CGSB. Quality Audits are also performed by the CGSB on a periodic basis, this is in addition to Layfield's own internal quality audit process, regulated by our ISO 9001:2000 Quality Management System.