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？
+ {, m( o! Q7 O/ j8 Z5 n
' a! i( t/ ~+ m. }7 Y: W- I8 D一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
* Y9 J( C1 w+ y" j) ^  E0 S  xR22是什么工艺？
2 [7 F7 ?8 E$ w7 N
2 w. t' }+ Z; ?6 j0 f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。
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' I6 A/ j) r, B5 D+ }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。
; ~5 L7 u; t' y; _  Y' Z" J0 ]. r
2 a; m! O  ~/ k) `9 O# q查查你的窗户玻璃 R value 就知道了。

' ]4 h! T1 ]+ s2 m$ ~/ y% u9 G' Z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
/ x, z5 m! o( _% y你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

0 S7 w/ M9 ~9 @4 QTriple 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%
HS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
HS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
HS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
+ X9 z9 h. _  n! B, n" vHS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
HS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
7 U; {  ^2 Z) F+ x9 A2 l4 mHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%