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？
% ?  W2 C  B! r
一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
2 B* {7 p# k& Q5 ]0 r- }+ ZR22是什么工艺？
+ {1 d. o' |/ F9 W- Z
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。
: A4 }% V7 z( m+ n/ i! F8 Z& X
8 v5 O+ q8 s+ g9 O% r- e2 N' D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。
# z: z# g( k5 y5 f( S* p; p+ [8 u5 m
查查你的窗户玻璃 R value 就知道了。

: r- `& S4 C  F9 i7 ^  V' X( q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
# t: _2 h% |, f1 o你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

7 `& R+ X' _6 L* v& n7 pTriple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
  C/ Q/ w! E: O! P. J" [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%
2 }4 n7 H6 \3 \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%
HS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
) v. E# B& `# u6 T( l( {$ j+ r( AHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%