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
R22是什么工艺？
$ d1 m/ @' r; ^6 Y# @9 i. m+ b+ h
一般如果是 Acrylic Stucco 外墙是R28

* y2 Y6 y& t( z! E# cR-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
% i. P9 @: \) }: J# L$5/sf就升级2？毫无意义。
- ~2 D( b3 R; h2 \( U
查查你的窗户玻璃 R value 就知道了。

+ w* N2 j: ^* n& x+ `" m: ]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
. I5 p. ]$ y* H0 G' e& J你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

/ l- ^7 @! u) I' o5 YTriple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
0 J+ [7 W0 h0 ]Tri Triple panes of clear glass, no coatings and no Argon 3.45 0.68 42% 74%
# f- q4 h: f$ F8 G$ c/ G8 Y' gHS1A 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%
HS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
! @; z1 s4 f( O* C- RHS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
% x6 b6 l* o* h/ H% U3 Q' JHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%