Rigid Foam Roof Insulation

The roof deck can be plywood metal concrete or wood planks.

Rigid foam roof insulation.

There are at least two good reasons why this approach makes more sense than installing the insulation under the roof sheathing. Insulated roof assemblies can be vented or unvented. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. Rigid foam insulation also known as insulating boards provide high r values.

Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. You can even place it under the foundation slab. Insulation above the roof deck or air vapor impermeable insulation below the roof deck is needed for condensation control in an unvented roof. Foamular xps roof insulation for commercial buildings page 5 foamular xps roof insulation for commercial buildings foamular xps insulation is a rigid foam insulation which meets the needs of today s design professionals for a truly sustainable insulation product.

The ratio of insulation above the roof deck or air permeable insulation below the roof deck is a matter of climate and interior conditions. There are lots of different ways to insulate this type of roof but one of the best methods calls for the installation of rigid foam insulation above the roof sheathing. The bottom layer of a single ply membrane roofing system is the roof deck or substrate. They keep your home at a comfortable temperature without the need to crank your heat.

Start at the bottom of the roof and place the first piece of rigid foam insulation against the metal flashing starting at the center line. Install it anywhere from the roof to the foundation. Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. 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.

Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck. Rigid insulation is one of the best tools to reduce your energy costs. The first step with roof installation is to prepare the roof deck by getting rid of all dirt dust and contaminants. Rigid foam insulation installation prepare roof deck.