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？
. ~7 d" {2 t. ^2 R: `% `# L
9 T- B: a* {1 e& }) y4 E; z- H6 T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？
8 }: ]" h1 C7 T$ 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。
  D" V8 u' r6 h9 w
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
0 `" z$ e! M" e. r, c$ u! z$5/sf就升级2？毫无意义。
- F/ g  K/ a8 k: B4 Z
; D! @9 E; @0 k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
0 U2 F# g$ P& E- ~你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

3 r6 y: E* ^6 H* y% `4 e# }6 CTriple 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%
5 f2 q* y. o* s4 M# \HS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
" o0 R& [2 D: E2 ^1 gHS4A 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%
HS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%