Foam Pn Pitched Roof

Exterior spray foam only works on flat or low pitch roofs.

Foam pn pitched roof.

Yes foam roofing will work on pitched roofs as long as they are not too steep. Spray foam was also particularly well suited to this roof because it had parapets which defined the edges of foam. At pitches steeper than 4 12 walking freely without slipping and smooth foam application tends to become too difficult form most foam technicians. Polyurethane foam roof systems are a fully renewable watertight seamless monolithic roofing system.

Foam control tapered roof insulation is compatible with all major roofing materials and assemblies. Foam control tapered roof insulation is a cost effective durable and energy efficient solution for roof insulation. While expensive the best insulation is polyiso rigid foam. 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.

The foam technician needs to be able to walk across the roof surface while spraying a smooth pattern. No long term r value loss or thermal drift. For a 1 inch board equivalent of 6 r value. The foam panels need to be secured to the roof around every 12 inches for safety.

Lstiburek takes blame for bad language. For pitches greater than 4 12 rigid foam panels are the over roof deck choice 3. Additionally you can apply special foam insulation tape along the seams to better secure them in place. When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing system.

It s not coming from above the roof and it s not some new moisture source resulting from the spray foam. The purpose of the requirement that rigid foam installed above roof sheathing meet certain minimum r values is to ensure that the roof sheathing stays warm enough during the winter to avoid moisture accumulation and possible sheathing rot. This is an ideal flat roofing system in arizona as it i. Repeat along all of the edges across the entire roof.

It is top quality and the most cost effective product for your flat roof. Three inch weatherproofing tape will also work fine. Energyguard tapered polyiso insulation provides a logical and economical answer for roofs that do not permit adequate positive drainage like low slope roofs.