Insulating an unfinished garage
I have an unfinished garage that desperately needs some insulation. Not fun to work in a garage when it's 15 below outside. My trouble is this, I am trying to save on cost and was hoping to get the unfaced roll. BUT, those are 15" wide and the trusses are spaced 24". Since I use the rafters for storage, I am wanting to put the insulation in between the trusses right up next to the roof. The 24" batts are 3-4 times the price and could make the project unaffordable. Once the roof is done to hold some heat, I'm want to start doing the walls. That will be fun because the previous owner used peg board for every wall. Nice and convenient storage yes, but a pain to take down and put back up.
We live in western WY at 7000' so I'm not sure why it wasn't insulated when the garage was added on in the first place.