FAQ

What is the current R-Value of my insulation?

Blown Cellulose is rated at R-3.2 per inch of insulation. For example if you have 6” of cellulose your R-Value is R-19.2 and is calculated by the average depth of the insulation in the attic so if there are high or low spots we average the depth to determine the existing R-Value.

Blown Fiberglass is rated at R-2.2 per square inch of insulation. For example if you have 6” of blown fiberglass your R-Value is R-13.2.

The difference is that blown fiberglass typically loses its R-Value as temperatures drop making cellulose a far better product.

How much insulation should I have in my attic or walls?

Current building code requires at least at R-38 for attic insulation and an R-21 in walls. The Department of Energy suggests an R-49 based on the climate in our area due to extreme highs and extreme lows in temperature.

How does the Avista Rebate work?

Avista has certain standards for the rebate that determine your eligibility. The 2 big ones are that your current R-Value must be below R-12 and the insulation must be installed by a licensed insulation contractor. The rebate is the same regardless of the contractor you decide upon. The rebate can either be credited toward your Avista account or they will mail you a check 6-8 weeks upon receiving the paperwork (which we will supply upon completion with the invoice.) They offer $.25 a square foot for attic insulation and $.50 per square foot for wall and crawl space insulation.

For more information click on the Rebates tab at the top of the screen.

Why does my house feel a lot hotter this year than it was before I got my new roof?

We get a lot of calls like this one. Usually the answer has to do with the color and composition of a new roof. If you previously had a cedar shake roof and had a new composition shingle installed, the shingle is denser and holds a great deal more heat than the cedar shake. Additionally the life of your new roof will increase by having proper attic ventilation or fans to mitigate the increased attic temperature as a result of the new roof.