Insulation level are specified by r value.
How to amp up attic insulation depth.
When insulating check to make sure that your insulation fits snug to the boards and joists for optimal energy efficiency.
If your attic just needs a top up you can apply a second layer of batting perpendicular to your current one.
Affix rigid foam insulation to the attic side of the hatch or door.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
She has an annual heating bill of 1 600.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
Inspecting your attic insulation.
Pull down stair or ladder.
For loose fill cellulose this translates to a total depth ranging from 8 inches.
You can expect an r value of 3 1 to 3 8 per inch.
Just lay the new batting right on top of your current between joist batting.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Attic insulation using fiberglass mary has a four bedroom detached house 150m2 in size.
R value is a measure of insulation s ability to resist heat traveling through it.
The higher the r value the better the thermal performance of the insulation.
Attic hatch or door.
Pricing can vary based on thickness and material but it s generally 0 15 to 0 50 cents per square foot.
Handy homeowners can install blown in insulation in the attic.
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.
Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.