Rigid Foam Insulation Attic Roof

Most unvented attics incorporate spray polyurethane foam spf on the underside of the roof deck and attic walls.

Rigid foam insulation attic roof. Technically known as spray polyurethane foam or spf spray foam is most commonly applied in the space between attic rafters. For the same reason insulation shouldn t touch the roof s underside. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. Spray foam pink fiberglas vs.

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. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. Heat can be transferred by three methods radiation convection and conduction. This construction approach was first used in the 1970s and it has been implemented much more widely since it was first included in the international code council s icc model building code in 2007 irc section 806 4.

This requires the use of soffit vents and a roof ridge vent to. Better materials for attic roof insulation are rigid foam boards and spray foam insulation. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.

R matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board. Insulation project calculator how to install naima r value certification product training videos colab learning video library for pros distributor locator why owens corning insulation propink vs. The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy. It can act as an air and moisture barrier in addition to providing very high r value.

When the sun s heat hits your roof that heat is radiated across the roof. When installing rigid insulation in an attic to be finished as a living space you must provide a route by which hot air can escape. That s not a problem with foam board insulation.