EcoRenovator - View Single Post

workaholic · 01-08-13, 06:33 PM

that looks like it might be pretty much proportional. A 1/7 reduction of depth results in a 2/15 reduction in R value. If you assume there was some rounding in the data that you found it may be even closer. If you make the same assumption about the 8" insulation(that its r-value is proportional to it thickness) then the 8" @R-25 compressed to 75% of its thickness should end up at about R-18.75 which is what fornax speculated earlier.

01-08-13, 06:33 PM	#15
workaholic Lurking Renovator Join Date: Jan 2011 Location: evansville, indiana Posts: 18 Thanks: 1 Thanked 1 Time in 1 Post	that looks like it might be pretty much proportional. A 1/7 reduction of depth results in a 2/15 reduction in R value. If you assume there was some rounding in the data that you found it may be even closer. If you make the same assumption about the 8" insulation(that its r-value is proportional to it thickness) then the 8" @R-25 compressed to 75% of its thickness should end up at about R-18.75 which is what fornax speculated earlier. Last edited by workaholic; 01-08-13 at 06:52 PM..