High R Value Roof Insulation

Aerogel has an r value of about r 10 per inch is 99 air and insulates up to 37 times higher r value than fiberglass.

High r value roof insulation.

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. A high r value system is commonly referred to as a double layer system. Foamular high r cw plus insulation combines outstanding moisture resistance with excellent thermal performance. High r cw plus insulation is a rigid closed cell xps board.

Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system. The main advantage of high r cw plus insulation over other xps boards is its higher r value per inch. See the department of energy s doe ranges for recommended levels of insulation below. You can achieve better thermal performance in your attic by adding an additional layer of insulation.

Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. Two layers of insulation are installed and held up with metal bands to achieve a high r value. Here are some currently available high r building insulation products as well as some specialty very high r insulation materials. R panel meets the international building code requirements for a foamed plastic roof insulation.

Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value. Steel bands are installed on the underside and perpendicular to the roof purlins. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Develops markets and installs innovative wall ceiling insulation products that meet the performance environmental and budgetary needs of building owners building managers architects and builders.

The higher the r value the better the thermal performance of the insulation.