Rigid Foam Insulation Roof Detail

The benefits of adding a layer of rigid foam insulation to the exterior of walls and roofs are twofold.

Rigid foam insulation roof detail.

While all foam insulation products are derived from petroleum some of the key differences include water resistance r value per inch compressive strength facings permeability to water vapor and evidently cost. Second the foam will keep the sheathing warm so moisture passing through the wall or roof will find no cold surfaces for condensation to occur. All atlas acfoam polyiso insulation boards are qualitymark certified providing consumers an easy way to identify premium products that meet or exceed building codes for the best in roof performance. Foamular roof insulation can help contribute to credits under the leadership in energy and environmental design leed program of.

If providing a vented over roof. It is the only xps insulation with certifi ed recycled content certifi ed by scientifi c certifi cation systems. First the foam will increase thermal performance by adding r value and minimizing thermal bridging. Foamular roof insulation is made with a high percentage of pre consumer recycled material.

Polyiso is an easy cost effective sustainable and energy efficient construction material. Flat roof insulation installation the rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. 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. Once the roof demo was complete and the flat roof was cleared of any remaining debris some rotted 2x material around the perimeter of the roof was replaced.

Expanded polystyrene eps extruded polystyrene xps and polyisocyanurate are the most used types of rigid foam insulation.