Roof Insulation Batts Ratings

Those in the freezing alpine areas of australia require insulation with at least an r value of 6.

Roof insulation batts ratings. Recommended insulation levels for retrofitting existing wood framed buildings. Your wall cavities aren t as deep as the ceiling so for the walls you want a rating of 1 5 2 7. Because installation is relatively easy and batts are generally the least expensive insulation material many homeowners try to diy this option. The higher the r value the better the insulation is at reducing heat flow.

The r value is a measure of the insulation batt s resistance to heat flow also known as thermal resistance. We should note that the thickness required for ceiling insulation can vary significantly. These batts or blankets usually come in pre sized rolls that fit between joists and studs in the attic. In new homes we recommend installing a combination of foil faced roofing blanket and roof batts if you live in an existing home then consider installing another layer of roof insulation on top of the existing batts.

The higher the r value rating the more effective the insulation is as the batts provide a better level of the resistance to heat in your home. This means for example that pink batts ultra r4 0 insulation is more effective than pink batts classic r1 8 insulation. Finally floor insulation should be a rating of 1 7. The greater the r value the greater the resistance to heat transfer and the greater the insulating effect and subsequent energy savings.

Insulation in zones 1 and 2 typically require an r value of 3 or 4 while properties in zones 3 to 7 will require an r value of at least 5. Existing 3 4 inches of insulation. Add insulation to attic. Roof insulation helps to reduce energy consumption by preventing heat loss during winter and heat gains during summer.

Measure the depth of your current insulation. If your current insulation is only five inches deep you will need to add seven inches of insulation to achieve the 12 inch r 38 rating. When choosing the right ceiling insulation batts look for a rating between 2 5 6 0. Fiberglass and mineral wool batt insulation are very common in the united states.

Pink batts classic is our lower r value range of insulation designed to achieve minimum building code requirements. Measure the area needing insulation. Bradford gold ceiling insulation is designed to reduce heat transfer through the roof of your home improving your home s comfort and energy efficiency. R 38 is the industry standard and the minimum thickness for r 38 is 12 inches.