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？
  D" b* ^7 J1 p5 k4 `; }& i- `
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？

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

$5/sf就升级2？毫无意义。
7 U$ q' U0 e) `( p0 a5 w
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。

0 j# |* e3 e2 |# y2 \' A  U0 c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%
+ U# O4 D+ U! f9 PHS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
5 g2 Q* F* l! ?7 A9 P& |* Q% W+ l* GHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
/ a- u1 ~/ {+ S) e4 w: E; z5 jHS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
9 O  {6 r' u  R1 RHS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
6 N. M' h, k0 {0 fHS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
, Q$ {6 U/ {6 F# Z+ R: U$ a( bHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%