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？

# z6 F6 g( W0 ?7 B4 j一般如果是 Acrylic Stucco 外墙是R28

lu_guo

小黄 发表于 2013-10-14 21:36
8 @( N7 W! i7 Z2 F$ p5 E- v6 XR22是什么工艺？

. w* _/ ?* W) N& l' i3 X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。

! L, z5 S5 K) j1 N) M) G) J7 }8 d9 K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
: @9 q$ C, _! s7 P6 e# e$ W$5/sf就升级2？毫无意义。
' h$ J% M$ A3 s  N
3 o+ C' j9 y8 {& P/ a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。

: n% m/ H. C  L- @4 ?* e5 b5 FTriple 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%
HS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
HS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
9 f9 j$ S% g; r3 l0 tHS3A 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%