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？

一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
) J/ S9 G$ }- ?; i) S4 S: hR22是什么工艺？
6 N5 {" `6 ?# f$ h; l: b8 ~, N
5 u; ?) G$ H; w! o2 G" W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。

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。
1 A* Y) B& J/ D7 U
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%
# ~3 G/ |8 E0 H& j" R2 I: BHS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
! e4 b. r) m+ n* H2 E7 jHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
, [: Q8 O( w; h, K6 |HS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
7 m  k# g! h9 w% rHS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
/ c. W+ @5 N: t6 OHS5A 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%