Insulation Board Flat Roof

For a 1 inch board equivalent of 6 r value.

Insulation board flat roof.

Flat roof insulation installation the rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. Rigid foam insulation also known as insulating boards provide high r values. We recommend having at least 20 r value worth of material for optimal energy efficiency. They keep your home at a comfortable temperature without the need to crank your heat.

Rigid insulation is one of the best tools to reduce your energy costs. Insulation board sheets our selection of pir loft insulation board features products from renowned manufacturers such as celotex kingspan and recticel. You can even place it under the foundation slab. This is an organic board compromised of wood or cane mixed with several binders and fillers.

Tr27 insulation consists of high performance pir boards with glass facings on either side. To enhance its water resistance asphalt can sometimes also be coated onto the surface. Here is a list of the most commonly used materials for flat roof insulation and how they differ to allow you to make an informed choice. What types of flat roof insulation are available.

A mix of general purpose insulation sheet and job specific rigid insulation board you re guaranteed to find a product that s a match for your application. You can expect to pay about 55 100 sq ft. Flat roof insulation our range of high and optimum performance flat roof insulation products are suitable for use in a range of flat roofs. Tapered insulation is also ideal for existing roofs that may not already incorporate a structural fall.

Rigid roof insulation board. Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to 1 2 thick duraboard an expanded perlite mineral aggregate board on one side and a fiber glass reinforced facer on the other. The boards can simply be installed on top of the existing waterproofing layer. It s light weight provides ease of handling.

These flat roof insulation boards have been manufactured so that they are fully compatible with most flat roof systems including mastic asphalt roofing and single ply non bituminous systems as well as green roof systems. It is top quality and the most cost effective product for your flat roof. 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. By creating appropriate falls and drainage a flat roof is more likely to last for its designed life by channelling water to outlets efficiently.

While expensive the best insulation is polyiso rigid foam.