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) m3 g4 `4 M1 @3 D+ A
一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
( [; @1 P- X! d. Q! X6 ^2 ?R22是什么工艺？
& T/ ]7 l0 M! j2 i7 v& H6 s
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 R3 s  A) n) k, e) a
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。

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
; O, s/ m: V( Z. |( r你说的对。窗户的R值只有2一4。墙上提高一点意义不大。

% y) l. t9 W  _2 DTriple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
& h! Q& z  _; @% `7 ]4 @$ \9 |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%
7 v; Z! j$ i7 l) pHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
# v4 N1 s. I( j5 T  N, X, f7 ]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%
; g1 y1 a# h$ g6 x$ U. y6 }HS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%