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
! D3 ]7 \+ Z% ?& x0 ]! aR22是什么工艺？
# I, v( p; ~+ c( o4 ?: u
& t" z7 m5 v3 }" ]/ O4 ~一般如果是 Acrylic Stucco 外墙是R28

  `. p) o. t1 X7 r# pR-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。
$ g4 D1 q3 `2 J' g3 {
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
- f" U8 _! H1 q, n你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

, j8 ]/ u0 x  z9 [1 l0 Z: w6 K6 jTriple 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 l& L# a. K  B+ mHS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
+ K" j* m! S* D# AHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
% h+ J' {7 w2 o  w0 OHS3A 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%
HS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
* F1 s2 P/ E9 ?; v7 q( c" ZHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%