Expert Insulation Contractors in Spokane, WA

Loose fill is ideal for attics because it settles into all the little nooks and cavities, particularly with Cellulose which only becomes denser as it settles. Fiberglass batt is perfect for applications like floor insulation or wall insulation but when it comes to an attic where the insulation is directly exposed to the cold air in an attic we highly recommend blowing in an R-49 or R-60 with cellulose.

Homes built before 1990 may contain asbestos insulation, which requires professional removal. This insulation looks grainy and loose with shiny flecks.

Current building code requires at least at R-49 for attic insulation in our climate code. Attic insulation depth is based on what type of insulation material you decide to use whether that be fiberglass insulation blown-in, fiberglass batt or blown-in cellulose. To reach an R49 with blown-in fiberglass requires roughly 16.25". Owens Corning makes an R49 fiberglass batt that is 14" thick. We recommend and install contractor grade cellulose manufactured by Green Fiber that reaches that R49 threshold at a little over 14". We here at Pacific Insulation believe that the best insulation for attic is cellulose insulation with an r-value of R60. Floor insulation gets installed from inside the crawl space under the house and is typically an R30 Kraft faced fiberglass batt. We install these into a 2x10 or 2x12 floor joists.

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.

In order to stop condensation (and frost) from developing in your attic you need to do 3 things: Eliminate or reduce air leakage into the attic. Improve attic insulation. Improve attic ventilation. Ensure bathroom & dryer vents are routed outside.