Rigid Foam Roof Insulation

Insulation above the roof deck or air vapor impermeable insulation below the roof deck is needed for condensation control in an unvented roof.

Rigid foam roof insulation.

Insulated roof assemblies can be vented or unvented. Kingspan insulation r 3 common. The roof deck can be plywood metal concrete or wood planks. The first step with roof installation is to prepare the roof deck by getting rid of all dirt dust and contaminants.

There s a reason polyiso rigid foam insulation is used in more than 70 of commercial roof construction as well as in many residential builds. The bottom layer of a single ply membrane roofing system is the roof deck or substrate. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. The ratio of insulation above the roof deck or air permeable insulation below the roof deck is a matter of climate and interior conditions.

Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck. 0 56 in x 4 ft x 8 ft. This product is suitable for use in wall sheathing applications in new. Not only does it provide high r values but foam board insulation is also easy to install lightweight and can be used in any room of your home.

0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. There are lots of different ways to insulate this type of roof but one of the best methods calls for the installation of rigid foam insulation above the roof sheathing. Rigid foam insulation installation prepare roof deck.

Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. There are at least two good reasons why this approach makes more sense than installing the insulation under the roof sheathing. R panel is manufactured with a closed cell polyisocyanurate foam core bonded to fiberglass reinforced facers and designed for use over metal nailable and non nailable roof decks with a variety of membrane systems. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency.