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？
( o, _2 Z5 T- f1 |8 f
0 O0 ~. ^- y& B) R# m; H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？
( s2 a, T. m% t8 \
一般如果是 Acrylic Stucco 外墙是R28

  z0 t+ b) ^- U5 C- z6 CR-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。

6 S2 o  l0 z4 A1 Q4 s, V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。
! [; h& T6 [5 L: \2 H
查查你的窗户玻璃 R value 就知道了。

* R; ]4 P: M' R; t2 L1 l- F" G* d1 w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。

6 L0 Z4 B( y  ~5 G2 k3 m6 j& i$ _Triple pane double glaze = R8

lu_guo

Dual panes of clear glass, no coatings and no Argon 2.08 0.76 44% 81%
/ N3 X& ~2 G4 k& b. Q$ ]# {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%
" M, [; O  y) I% pHS2A Tripane glass, one pane with Low E coating and Argon 5.00 0.73 65% 68%
. Q; [# A: ^/ Z. |0 Q7 xHS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
) \+ C6 ^% i+ pHS4A 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%
3 s) ^) Y% s" q. ZHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%