what is R factor? how do you have UV on the windows? ! o2 j0 Z# I) Z7 E _$ p7 p5 ?ChiaPet 发表于 2011-2-18 08:53
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R factor is used to determine insulation capability. , }8 t6 b/ {5 C/ J : ?# i' Q x4 @6 F. r1 E% |Here in Canada, walls are well over R20. So, even if the exterior walls are hot under sunlight, it won't really affect interior living space. % I% F. b# F1 {+ W6 N 0 A8 c! m9 H" q" V$ ~* o9 sHowever, windows have lower R factors and allow UV radiation (and radiation of other frequency) to enter the house. So, it's best to upgrade your windows, if radiation (i.e. sunlight) is a potential problem. Typically, you can upgrade your windows to triple pane, with sun-stop coatings on both sides.
R factor is used to determine insulation capability.( [" ]' e/ L" {" h
6 H/ a6 o1 m. i! a0 V* R5 R. qHere in Canada, walls are well over R20. So, even if the exterior walls are hot under sunlight, it won't really affect interior living space.9 W% S! h- Q* M
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小黄 发表于 2011-2-18 09:06
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Thank you for your reply. But would sun-stop coating cost too much?
would sun-stop coating cost too much?2 Y3 Y5 Y) p A* i; }
ChiaPet 发表于 2011-2-18 09:09
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Ask your builder to give you an exact quote. Q6 w8 R& R6 F# ^0 H# [# P$ a
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.7 R6 v4 k" c: O. p ?
You don't have to upgrade all the windows. Only the important ones. $ q6 A" o9 [5 [6 `4 I小黄 发表于 2011-2-18 09:13
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Will do. Thank you.
我觉得不会,去年我买的新房装有空气换气系统,有三档,最低一挡是每20分钟就RUN一次,屋里温度夏天也是阴凉阴凉的,很舒服.BUILDER告诉我用最低档每月大概比不用增加$5,不管增加费用是不是这么低,总之我没发现比人家增加 ...' s! p. |) C) }7 r
amy-china 发表于 2011-2-18 16:09