This Is Why Spray Foam Changes Everything | Episode 33

Spray foam insulation can completely change how a house performs, but only if it’s done and sequenced properly. In this episode, we walk through the finished spray foam installation and show how everything ties together. From ceilings and box ends to wall transitions, you will see how 2 lb spray foam creates a continuous air barrier, vapor barrier, and insulation layer throughout the home. We break down key building science concepts like combustible vs non-combustible assemblies, how spray foam integrates with Rockwool, and why certain areas require different materials based on code and proximity to property lines. You will also see why sequencing matters. HVAC ducting is installed first, then spray foam is applied around it to avoid cutting insulation later. This results in a cleaner install, better performance, and fewer issues during rough-ins. We also cover practical details like insulating behind tubs and showers before installation, protecting plumbing from cold walls, and how drop ceilings help with both mechanical routing and steam control. Chapters: 0:00 Intro 00:10 Spray Foam results on combustable and non combustible side 1:35 Conditioned wall area 2:54 Future Bath/custom steam shower 4:29 Secondary washroom 5:09 Spray Foam under D 6:06 Sequencing recap 7:04 Main Floor 7:34 Basement 8:10 Episode Recap/Future sequencing 8:39 Garage If you are building, renovating, or considering spray foam insulation, this episode gives you a real job site breakdown of how it should be done properly. Looking to improve indoor air quality during your build or renovation? Check out HOLTOP ductless ERVs www.holtopcanada.com A ductless ERV provides continuous fresh air ventilation by exhausting stale indoor air while recovering heat energy. It helps manage CO2 levels, control humidity, reduce odors, and improve indoor air quality without ductwork. Ideal for basement suites, laneway houses, modular homes, tiny homes, and airtight builds. Use promo code FRESHAIR15 for 15% off. Free shipping across Canada.