higher the R-value, the better the insulating properties

來源: Q22 於 2024-10-08 12:09:39 [] [舊帖] [給我悄悄話] 閱讀數 : (132 bytes)

R-30, R-38, all better than R-19.

search the web, you'll get many info, free DIY video in installation! 

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• diy不可能。隻有看哪家便宜點了。 -ice_tea- ♂ 給 ice_tea 發送悄悄話 ice_tea 的博客首頁 (0 bytes) () 10/08/2024 postreply 15:03:00

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