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？
: @& Y. d& u/ S! M
8 w# L0 ?+ T" z; z  S( E一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
8 X5 ]* E/ Y6 V' D6 yR22是什么工艺？
6 O. s2 W- c( r' ~( L% I
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 X6 T; d+ {) Z. ~* C
查查你的窗户玻璃 R value 就知道了。

0 r5 m( ^0 P: U' D( s3 v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%
6 U, ^3 S# R4 q0 r3 m) Z3 aHS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
2 |* G- x4 b- B8 X; kHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
2 v( B" W' ~. ]HS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
1 d7 k" y8 h% F5 v8 H6 OHS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
- L# ^/ \" x$ w3 aHS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
  S# X2 e! r/ R, ?1 WHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%