How To Amp Up Attic Insulation Depth

Attic insulation using fiberglass mary has a four bedroom detached house 150m2 in size.

How to amp up attic insulation depth.

Insulation level are specified by r value. Handy homeowners can install blown in insulation in the attic. Affix rigid foam insulation to the attic side of the hatch or door. Inspecting your attic insulation.

Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. When insulating check to make sure that your insulation fits snug to the boards and joists for optimal energy efficiency. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

For loose fill cellulose this translates to a total depth ranging from 8 inches. Mary previously had 100mm of fibreglass insulation in her attic but decided to upgrade the insulation in her attic to the required 300mm following consultation with the seai and various contractors. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120. She has an annual heating bill of 1 600.

First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. The higher the r value the better the thermal performance of the insulation. Attic hatch or door.

You can expect an r value of 3 1 to 3 8 per inch. R value is a measure of insulation s ability to resist heat traveling through it. Pricing can vary based on thickness and material but it s generally 0 15 to 0 50 cents per square foot. Just lay the new batting right on top of your current between joist batting.