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？
0 Y  }" x& N, s. t0 i. y- t
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？
9 ^3 t2 }  t; O& O( @. ?$ f# M
3 i) D$ s+ C4 l0 @: K一般如果是 Acrylic Stucco 外墙是R28

; n' g; T  `" \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。
/ R) k- Q) M7 y* E! d. t+ O2 a
/ X* ^* o6 P, V' q+ T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 f  U5 n2 x8 ^: Z3 }4 o3 e; Q$5/sf就升级2？毫无意义。
1 `  f& g+ H. ?
2 ^' n" V+ ~- V1 L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( m1 h" M/ _- Z$ `% C你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

" w. k# O- F: I6 YTriple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
- r' h: W* U' U* W/ A% DTri 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%
/ n* u* }, m! g. {4 qHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
* |* U( u7 e$ m/ Z) @0 ^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%
HS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%