The Ontario Building Code | Installation of Spray-Applied Polyurethane
9.25.2.5. Installation of Spray-Applied Polyurethane
(1) Spray-applied polyurethane insulation shall be installed in accordance with CAN/ULC-S705.2, "Thermal Insulation – Spray-Applied Rigid Polyurethane Foam, Medium Density – Application".
9.25.3. Air Barrier Systems
In Plain Language
Spray-applied polyurethane foam insulation must be installed as set out in this article, addressing this specific product's application requirements and thickness verification.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.