in the north you might have code that requires R38

來源: borisg 於 2024-09-24 10:44:56 [檔案] [博客] [舊帖] [給我悄悄話] 閱讀數 : (343 bytes)

回答: 請教Roof material type . any one used synthetic shingle tile? 由 RomaVacation 於 2024-09-24 10:31:16

insulation to the roof, that's 12 inches of fiber insulation.

Any kind of roofing material (asphalt or not) offers very little R-value. Not a factor for insulation.

您的位置：文學城 » 論壇 » 房地產經 » in the north you might have code that requires R38