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？
' i4 \/ W5 n0 I# W9 }3 m
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

. Y) C+ R8 \% h& \3 h9 p* O! SR-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。

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
; j9 W3 N2 h' A$5/sf就升级2？毫无意义。

/ V% s. R. N6 E( [, F5 O查查你的窗户玻璃 R value 就知道了。

, D, c" o7 I3 }' a$ _0 }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%
  }/ |: M  T) _! _( S2 h& bTri Triple panes of clear glass, no coatings and no Argon 3.45 0.68 42% 74%
! a; S9 `2 k7 T- p7 \3 MHS1A 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%
$ c8 A  R0 t. `& D! jHS3A Tripane glass, two panes with Low E coating and Argon 6.25 0.56 73% 62%
% N' b- J. Q: o% J" Z7 \7 b3 aHS4A Dual panes of glass, one pane with SunStop coating and Argon 4.00 0.40 71% 61%
/ i' S8 j; ~% S0 a8 [) w( EHS5A Tripane glass, one pane with SunStop coating and Argon 5.26 0.37 75% 56%
% \! O9 [9 z+ gHS6A Tripane glass, two panes with SunStop coating and Argon 8.33 0.30 86% 43%