Assertion: insulation's effect | /r/HasProperty | high density
Facets:
Source sentences:
text: Effects & Comments Hardboard, high density, standard tempered 1/4" thick, Per Inch 1 30 1/4" thick hardboard, high-density = R 0.25  Note that many builders refer to this wood product hardboard by a specific trade name "Masonite™" or "Masonite hardboard" Hardboard underlayment, 1/4", per inch: 1.24 30 1/4" thick hardboard underlayment = R 0.31