Garage Roof Spray Foam Insulation

Spray foam insulation spray foam is excellent for both r value and for air sealing.

Garage roof spray foam insulation. Spray foam insulation cost per square foot. Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly. But if the garage is heated you should definitely insulate. Provides a quiet demeanor to your garage.

Other insulation methods such as fiberglass and batts do not do a good job in keeping out cold air and other pollutants that may be harmful to your respiratory system. Moisture generated indoors or that infiltrates into the home is responsible for the bulk of the moisture in an attic insulated with spray foam on the underside of the roof sheathing. Spray foam insulation provides an airtight seal that is difficult to break. Unlike other insulation types spray foam insulation is safer and healthier to use.

Open cell spray polyurethane foam or closed cell spray polyurethane foam ccspf insulation can be sprayed along the underside of the roof sheathing to provide a conditioned and insulated attic space that can be durable and efficient in all climate zones see figure 1. A board foot is one square foot that is one inch thick or one square foot that s covered by one inch of spray foam insulation. As a high end material typically used for energy efficient construction spray foam is overkill for most garage projects. Spray foam insulation costs 0 44 to 1 50 per board foot.

The cost of spray foam insulation per square foot is more difficult to pin down since the thickness of the foam is not specified. For this reason and even for newer construction air sealing and insulating a garage is critical and the best product to achieve both is spray foam. This insulation product expands quickly into the various cracks and holes that are in your crawl spaces attic and walls. It s even more beneficial for older construction as using spray foam on the walls ceiling or roof adds rigidity to the structure and its possible we may even be able to spray the door more on that later.

It is made by mixing and reacting unique liquid components at the job site to create foam. But it might make sense if you re converting the garage to living space. Use fibreglass cellulose foam board or closed cell spray foam if it were my garage i d go with spray foam. Lstiburek takes blame for bad language.

Then cover it with drywall. It s not coming from above the roof and it s not some new moisture source resulting from the spray foam. These leaks are usually one of the most significant costs that homeowners face because it increases the amount of energy loss that occurs.