About roof reference center

An accumulation of 35 years of expertise at your service

Central Roof Reference is the result of over 35 years of experience in the building envelope weatertightness field including 25 years of expertise in the roofing industry.

Having had the opportunity to participate for several years to the development, improvement and integration of the CSA A123.21 Standards in the National Building Code Canada 2015. Our contribution upon the SIGDERS group created by NRCC, and also associations voting member; ASTM International (committee D-08, C-24 et E06), CSA Group Committee Roofing and waterproofing, IIBEC-QOC Technical committee envelope weatertightness.

Our mission

Enable all stakeholders from all backgrounds to get adequate information on CSA123.21 standards in one place for their projects remain consistent with normative requirements in force.

Michel Desgranges T.P. combines in itself 35 years of experience in the construction industry, including 25 years of development in building envelope and almost 20 years in the roofing industry.

Throughout his career he served as general contractor functions, consultant, inspector, roofing contractor. He also worked with renowned engineering firms.

A normative et impartial information source

Now that the standard has become law in some Canadian provinces, many different interpretations are conveyed for the purpose of commercialization of sealing systems. This site is designed to offer you a fast, accurate and objective resource to get information and assembly meet the specific requirements for each of your roofing projects. The rich and detailed documentation based on the results of North American ISO 17025 accredited laboratories will help you do your calculations and choose the items likely to appear in a particular sealing system.

Our implications