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？
& }  l; [" p# u
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？

一般如果是 Acrylic Stucco 外墙是R28

6 u* f; N0 G0 O+ VR-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。

0 v. P' h" o& H. h) B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
$5/sf就升级2？毫无意义。
) m6 ]: H: d4 @% ?6 h8 f# t$ |
查查你的窗户玻璃 R value 就知道了。

1 ]( B$ B& J4 z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。

; A8 c- Z) A: k" [$ ^  L4 eTriple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
7 V+ s) D6 d7 x( Q! r2 T9 t% QTri 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%
# r& P! i! a. ^3 W4 t  z, x9 ?4 NHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
+ g; q0 n3 r' ]0 M7 H- 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%
) Z: B& ], X0 jHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%