F*********o
发帖数: 351 | 1 The home inspector said the attic on the office used R-13 insulation, it
typically should be R-30 or 38. We want to add some by ourselves, should we
bought R-30 or a lower R number, such as R-19 would be sufficient? Thanks. |
j***b
发帖数: 5901 | 2 R-value是additive的。已经有了R13，到R30再加R17就可以了。推荐 cellulose。不过
要看一下ceiling是否承受得了重量。
we
【在 F*********o 的大作中提到】
: The home inspector said the attic on the office used R-13 insulation, it
: typically should be R-30 or 38. We want to add some by ourselves, should we
: bought R-30 or a lower R number, such as R-19 would be sufficient? Thanks.
|
F*********o
发帖数: 351 | 3 Thanks a lot. How do I check if ceiling can support the weight?
【在 j***b 的大作中提到】
: R-value是additive的。已经有了R13，到R30再加R17就可以了。推荐 cellulose。不过
: 要看一下ceiling是否承受得了重量。
:
: we
|
j***b
发帖数: 5901 | 4 我查了一下，说法不一。一般来说是如果ceiling joists是间距两尺的话drywall至少
要5/8才能加cellulose。如果ceiling joists间距16寸1/2drywall就行。
【在 F*********o 的大作中提到】
: Thanks a lot. How do I check if ceiling can support the weight?
|
