Which Colour Detectable Warning Tiles Should the Contractors Use? Installing detectable warning tiles is one of the many requirements outlined in the Canadian Standards Association (CSA) to create public spaces accessible to everyone. Although aimed at providing a non-visual warning of upcoming potential hazards, the visual appearance of detectable warning tiles is strictly regulated by AODA, CSA, and ISO. From tile size to truncated dome dimensions and from installation locations to the colour of detectable warning surfaces are all regulated by the CSA.
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