R36 Roof Insulation

Cold areas require a higher r value like an r 49.

R36 roof insulation.

Thermal resistance of r35. R value is a measure of insulation s ability to resist heat traveling through it. The format of house insulation you need depends on where you put it and if you need to control moisture. Insulation level are specified by r value.

Insulation types include loose fill batts rolls foam board spray board and vapor barriers. Timber block s standard r 30 wall insulation in combination with a tight thermal envelope. A recent mckinsey co. Increase your r value by layering insulation.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. Insulating wool is a flexible material made of fiberglass. Improved insulation is a good step toward improving building efficiency particularly since the atlanta based american society of heating refrigerating and air conditioning engineers ashrae increased minimum roof insulation levels in 2007 in its standard 90 1 the first increase in 18 years and if that isn t enough to spur someone into action. Fiberglass insulation 10 5 x 24 x 48.

The type of insulation you need depends on which type is currently installed and the required r value. Keep your space dry with faced insulation. R 30 insulation is standard in every timber block home. Layer more insulation over the old for more effectiveness.

Covers up to 56 pi ca. The higher the r value the better the thermal performance of the insulation. R values like r 38 are used by the construction industry to describe the thermal resistance of insulation materials like those used to insulate your attic when you are looking at an r 38 insulation you are actually reading a description of its resistance rather than size or thickness of the material. Johns manville kraft faced formaldehyde free fiber glass insulation is paper faced to help control moisture in concealed applications such as exterior.

The most common insulation materials are fiberglass cellulose and foam.