Central Roof Reference
Your CSA A123.21 standard reference portal
The CSA A123.21 standard Canadian roofs reference portal
For your convenience, we have grouped together in one place all the necessary information to make your roofing work in respect of the Canadian standard CSA A123.21.
This reference center is an integral part in the integration of CSA A123.21 standard in achieving your roofing projects.
Our Services
You will find all services regardless of your situation, manufacturers, roofers and professionals, real estate manager.
Find the documentation
To obtain a clear answer to your needs, the required calculations and easily find the right system for your project.
National Building Code
Why now using this Canadian standard, specific elements applicable to National Building Code of Canada 2015.
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