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？
, R# ^- Y* H; Q' D
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？
* ^) ]8 B, A5 O" M0 K/ }3 k
' J+ j4 _9 e0 y, [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。
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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
$ T0 C% S5 _, U0 |$5/sf就升级2？毫无意义。
8 o: z) M. I4 L4 G
查查你的窗户玻璃 R value 就知道了。

# V. N' o" t. I+ Q, H4 e, ?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%
1 h, y* V. E' h9 r* c3 C9 oHS1A Dual panes of glass, one pane with Low E coating and Argon 3.45 0.72 57% 71%
5 s7 ^5 ~# s$ ^: Q0 j' lHS2A 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%
: A" y- D( p  n4 F2 u& VHS4A 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%