FAQ’s FREQUENTLY ASKED QUESTIONS Can spray foam be injected into a wall cavity? No, spray foam must be sprayed directly onto a substrate. Do I need to stay out of my home after spray foam is applied? Yes, according to Canadian Building Standards CAN/ULC-S705.1, occupants must leave the home for 24 hours following installation. What is the R-value of spray foam? Walltite Eco has an approximate insulation value of R7/lttr6 per inch. Can anyone apply spray foam? No, only licensed and certified technicians can purchase and apply Walltite Eco. Is spray foam a moisture and vapour barrier? Walltite Eco is a moisture and vapour barrier at 2 inches of thickness. FREE ESTIMATE Name Please enter your name. Subject Please enter a subject. Email Please enter a valid email. Phone Please enter a valid phone number. Your Message Please enter a message. Please check the captcha to verify you are not a robot. Send Message failed. Please try again. Thanks for your message! We’ll be in touch soon.