Flat Roof Rigid Foam Insulation

They keep your home at a comfortable temperature without the need to crank your heat.

Flat roof rigid foam insulation.

Foam control flat roof insulation is compatible with all major roofing materials and assemblies. The most efficient and best insulation used is rigid foam polyiso. It accounts for over 60 of all installs. Insulated roof assemblies can be vented or unvented.

Iso is available in a range of thicknesses that come in increments of 1 inch. Usually homeowners spend about 25 of the total cost to install a flat roof on high quality insulation. 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. Install rigid insulation board in multiple layers with joints offset vertically and horizontally between adjacent layers.

While expensive the best insulation is polyiso rigid foam. It is top quality and the most cost effective product for your flat roof. A roof over a vented unconditioned attic does not need to include any insulation. No long term r value loss or thermal drift.

This type of insulation works best for an exposed ceiling directly below a flat roof. You can even place it under the foundation slab. Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. Foam control flat roof insulation is a cost effective durable and energy efficient solution for roof insulation.

Installing it will probably cut your energy bills a bit but will definitely make your living quarters more comfortable. You can expect to pay about 55 100 sq ft. The thinnest board is 1 inch. We recommend having at least 20 r value worth of material for optimal energy efficiency.

For a 1 inch board equivalent of 6 r value. The rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. After the roof deck is prepared the rigid foam boards need to be cut to size to fit snugly together on your roof. Rigid foam is produced in various size panels 4 ft x 8 ft 4ft x 4ft etc.

Rigid insulation is one of the best tools to reduce your energy costs. Install it anywhere from the roof to the foundation. Rigid foam insulation also known as insulating boards provide high r values. The panels need to fit together tightly to help prevent warm air from leaving the top of the building.

With this kind of roof the insulation follows the slope of the roof. Flat roof insulation installation.