buckeyefarmer
Epic Contributor
Here's a little "need to know" information on box-store insulation.
They have competitively priced insulation that is specifically R13 or R15 for 2x4 16" on center walls. EVERYTHING else they have is overpriced.
Price out the materials and then call a contractor for a quote. I promise you that your 24" on center rafters will put you into an expensive roll at the depot. Either call a wholesale insulation center yourself, or find a associate that installs for a living. You would not believe how many people can buy the insulation and have it installed by an installer for the same price that you would purchase the materials alone for at a box store.
I agree. an insulation company will supply and install cheaper than you can buy it at HD. I know this was a fact when I built my house.