According to building codes across North America, spray foam requires a thermal barrier that separates it from flames in the case of a fire. Typically, this is a gypsum board, which is an approved thermal barrier, but in cases where drywall is not being applied, or where stricter building codes are in effect, another approved application is required. 

For instances where only a minimum of 15mins of protection is required, an intumescent coating is suitable, these are specially formulated to expand 50 times their original thickness upon contact with fire, providing the occupants with ample time to vacate the area before the flames ignite the SPF insulation and release harmful chemicals into the air. 

In other circumstances such as commercial applications, where a minimum 1hr thermal barrier is needed, a cementitious material is required over top of the SPF insulation, this is created with cement or gypsum and spray-applied like the intumescent coating with advanced machinery. Whatever the application, whether residential, commercial, or institutional, our installers are certified and capable of handling projects of any magnitude.