attic insulation

[John Dirks Jr]

Where should I get the recommended insulation thickness or R value for my area. I know the Owings Corning people have their recommendations but is there another authority I should follow?

[Mark P]

Try these John,

http://www.eere.energy.gov/buildings/bu ... /34902.pdf

http://www.eere.energy.gov/consumer/you ... pic=11320A

https://www.energystar.gov/index.cfm?fu ... ool.atHome

[Brandon Chew]

I use this: DOE R-Value Recommendations

[Jim Katen]

Originally posted by AHI

Where should I get the recommended insulation thickness or R value for my area. I know the Owings Corning people have their recommendations but is there another authority I should follow?

Isn't it listed in your building code?

- Jim Katen, Oregon

[randynavarro]

In Washington state, there is a state energy code. The entire code is accessible online.

I would think Maryland has something similar?