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
% k4 \! q5 w/ PR22是什么工艺？
3 y+ t0 S8 \9 |; W7 Z. j
一般如果是 Acrylic Stucco 外墙是R28

0 z% m$ V: y, e3 x' r, J. gR-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。

6 D$ E, S  @" s) C7 I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
$5/sf就升级2？毫无意义。
7 P. z5 a0 o# \! K/ i9 q& B$ D' P4 {
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
* @6 a8 Y' C1 Q/ j+ ^; i  `6 {. ]. }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%
HS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
5 U5 l6 o1 N; s! W! oHS2A 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%
HS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
& ], S/ I/ H0 c- u1 \" ~: Y0 a7 PHS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
+ Q+ z; V  ^3 o+ r. f- W) EHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%