
Perma "R" Products R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation
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Read All Questions & AnswersWhat is the most efficient insulation to get to R-25 for a beer trailer?
1
To achieve an R-25 with this product you would need 6.5'' thickness. The R-Value is 3.87/inch tested at 75 degrees.
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