Joecool2008 t1_j6576m2 wrote on January 27, 2023 at 8:09 PM

Reply to comment by Blackking203 in How to insulate 24" stud spacing with 2x3 framing? by Blackking203

Insulation is hard to do nowadays less than a 100. Might get foam board and cut it down.

Whiskey-stilts t1_j65ly6z wrote on January 27, 2023 at 9:44 PM

I bought 2” foam board insulation with a r-10 rating last week, 4x8 sheet was $42

Joecool2008 t1_j65n65g wrote on January 27, 2023 at 9:52 PM

I do r13, so mine was 55.

Blackking203 OP t1_j657wvf wrote on January 27, 2023 at 8:14 PM

I was thinking about that too

Joecool2008 t1_j659nux wrote on January 27, 2023 at 8:25 PM

A serrated knife cuts it well. Or, Home Depot has some pink board with perforated lines to allow for easy sections.

Blackking203 OP t1_j674qss wrote on January 28, 2023 at 4:40 AM

I've been pricing things out and you are right. I think I'm going to do rigid foam and just cut it to size around the framing and used spray foam for any gaps.. I have about 88 sq. ft and the price is around $224 for 2in....What do you think about 1 1/2 inch?

WISteven t1_j68fzl5 wrote on January 28, 2023 at 2:12 PM

Make sure you cut the insulation about 1/4" short on all sides. That will leave a nice gap to fit the spray foam in.

Joecool2008 t1_j6753mp wrote on January 28, 2023 at 4:44 AM

Since I don't know the temperatures around your parts, I would be looking at the R values. But, 1 1/2 board does a decent job.

Blackking203 OP t1_j69f78n wrote on January 28, 2023 at 6:24 PM

I'm in Missouri so Temps can get cold to hot