what is R factor? how do you have UV on the windows? / R: |4 Z5 p4 U" Z/ b9 rChiaPet 发表于 2011-2-18 08:53
/ j1 I7 i: k- j2 m ER factor is used to determine insulation capability.! p) S$ c$ l( O5 \. t6 `
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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. " @+ U3 D% a7 q9 _ 7 W5 T: J# c% n' h# L: YHowever, 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.
本帖最后由 ChiaPet 于 2011-2-18 09:12 编辑 9 C' s* ]9 {2 i, N: F" a" G
R factor is used to determine insulation capability. " |8 K, w0 i2 a( h# e 5 A. F% i8 V( l+ w" THere 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.+ \( v3 ~& R0 ~1 T$ }
... . R6 d! d) J, R l% W M% X4 j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? - r# m$ D% U8 ]ChiaPet 发表于 2011-2-18 09:09
4 L! ^8 u7 k1 h! j4 \2 I cAsk your builder to give you an exact quote.( r/ C1 |' n/ ^/ K" @5 h: x, j
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.3 `" U Z& V0 w0 }4 m/ S- @; q* f
You don't have to upgrade all the windows. Only the important ones.6 @$ U2 f' o8 b7 C* z+ Q
小黄 发表于 2011-2-18 09:13
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it must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.