Rigid Foam Insulation Roof Detail

If providing a vented over roof.

Rigid foam insulation roof detail.

Expanded polystyrene eps extruded polystyrene xps and polyisocyanurate are the most used types of rigid foam insulation. Foamular roof insulation is made with a high percentage of pre consumer recycled material. The benefits of adding a layer of rigid foam insulation to the exterior of walls and roofs are twofold. 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.

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. It is the only xps insulation with certifi ed recycled content certifi ed by scientifi c certifi cation systems. Polyiso is an easy cost effective sustainable and energy efficient construction material. Foamular roof insulation can help contribute to credits under the leadership in energy and environmental design leed program of.

Flat roof insulation installation the rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. First the foam will increase thermal performance by adding r value and minimizing thermal bridging. Detail the outer layer of the insulating sheathing as a drainage plane. Install rigid insulation board over the air control layer in multiple layers with joints offset vertically and horizontally between adjacent layers.

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.