Rigid Foam Roof Insulation

Install it anywhere from the roof to the foundation.

Rigid foam roof insulation.

Rigid foam insulation also known as insulating boards provide high r values. But one thing that some builders don t like is the high global warming potential of some blowing agents used to make the foam. The rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. Polyiso is an easy cost effective sustainable and energy efficient construction material.

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. 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. Nailbase must be vented in high snow load areas. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency.

Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. Depending on the type of insulation you choose and the desired r value you want for your facility you may need to build up a few layers of insulation. Rigid insulation is one of the best tools to reduce your energy costs. The r value is a measurement of the heat loss and heat gain.

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. Install roofing underlayment flashing and cladding as per best practices. They keep your home at a comfortable temperature without the need to crank your heat. Expanded polystyrene eps extruded polystyrene xps and polyisocyanurate are the most used types of rigid foam insulation.

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. Install nailbase for cladding. Rigid foam installation after the roof deck is ready the rigid foam insulation is installed.