Spray Foam Insulation Low Slope Roof

Rigid board insulation rigid board insulation is the most common type of insulation used in low slope commercial roofing.

Spray foam insulation low slope roof.

The rapid growth of sprayed foam insulation in building construction thanks in part to its immediate and long term. I was leaning towards doing around 2 5 in of closed cell for an r15 and doing r30 in fiberglass batts on top. But spray foam insulation used at the underside of the roof deck would need to be covered by a thermal barrier and intumescent coatings are commonly used. It rots roofs people have told me.

For a contractor you can trust contact kohls foam systems for a free estimate. Insulfoam sp is an engineered insulation consisting of a superior closed cell lightweight and resilient expanded polystyrene eps with a durable and stable factory laminated coated glass facer. Insulfoam single ply sp fire rated single ply roof insulation with factory laminated glass facer. Again the thickness or thermal resistance of the high density closed cell spray foam is specified by the international residential code irc based on climate zone.

Most low slope roof construction using spray foam use a hybrid approach where a combination of high density closed cell spray foam is used with fiberglass or cellulose insulation. Most of the spf contractors i speak with are pushing 10 inches of open cell to reach r38 in the roof assembly. It is made from. Since 1987 kohls foam systems has been a certified applicator of spray foam roofing systems for low slope buildings and metal roofing systems as well as spray foam insulation and weatherization.

Murmurs and hearsay about open cell spray foam insulation have been gaining traction for a while. In many ways it s easier to build an unvented low slope roof and there are several ways to do it. Lightweight insulating concrete lwic. If you install a combination of closed cell foam and vapor permeable insulation you also need to be sure that the foam is thick enough to keep the roof sheathing or the lower surface of the foam insulation above the dew point during the winter.

Spray foam roof in philadelphia martin i am getting bids for spray foam for an unvented low slope roof in philadelphia zone 4. Dual purpose structural deck and insulating planks. Whatever your roofing or insulation need kohls can help. The insulation used in low slope roof assemblies typically falls into one of the four categories.

The movement of air into indirect conditioning of an unvented attic is a slow gradual process that will not be noticeable by occupants and typically will not put any strain on the hvac system. Or sprayed polyurethane foam spf.