你的房子外墙的保温R值是多少？

lu_guo

是不是R=12 是 minimum requirement？R = 20的情况还有没有必要上升成R=22？据说大概要5到6刀/平尺啊。

无语

真深奥。。。

ceramistpalace

The higher R value, the better.

小黄

R22是什么工艺？
- S( {9 {' _0 C8 d& a
一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
R22是什么工艺？
. T# ]$ c+ b/ o6 e# G0 L
一般如果是 Acrylic Stucco 外墙是R28

R-20 fibreglass batt insulation to exterior walls. CGSB polyethylene vapour barrier. Basement foundation walls - R-12 fibreglass insulation c/w CGSB poly vapour barrier, ceiling to floor

小黄

$5/sf就升级2？毫无意义。

4 r, y0 {" P' j' @  D0 ~查查你的窗户玻璃 R value 就知道了。

lu_guo

小黄 发表于 2013-10-14 21:51
$5/sf就升级2？毫无意义。
& E* o) j8 H3 w6 c/ A% \1 k
+ r$ s, x3 L/ ~0 j查查你的窗户玻璃 R value 就知道了。

你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

小黄

lu_guo 发表于 2013-10-14 20:58
你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

Triple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
Tri Triple panes of clear glass, no coatings and no Argon 3.45 0.68 42% 74%
' K3 D) L, |) DHS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
$ M! j1 S! h# o  e+ hHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
3 V) r5 E% K# b7 N' [HS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
HS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
3 w* u" s3 a. }6 o6 _3 F# D) e9 w& LHS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
1 F3 u* y2 l% q2 ^- lHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%