what is R factor? how do you have UV on the windows? 4 u$ C* Q, T- T# k3 P9 n9 ^ChiaPet 发表于 2011-2-18 08:53
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R factor is used to determine insulation capability. $ N/ A' `. U' l) ? " u; k! m- R/ \9 Z5 PHere 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. . ^5 j) Q* @* l6 e9 { ?0 w7 U1 p% Y, P2 e- b2 l9 }
However, 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. , D9 j+ G$ {- \4 H& c% q& Q% w# z& e$ Z7 z3 k/ u) h% P3 X, _
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. - s3 j( |: d7 K7 S7 N7 @/ D ...9 u4 Y. S; C+ z8 Z$ K& s+ 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?: o1 s1 m8 `$ d% W8 s
ChiaPet 发表于 2011-2-18 09:09
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Ask your builder to give you an exact quote.' R1 b! k# I: O8 C6 z: \
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote. * h, }" r- \0 h& |3 V) W. GYou don't have to upgrade all the windows. Only the important ones.4 `2 g! L# {( @5 {
小黄 发表于 2011-2-18 09:13
请问:主卧,客厅和饭厅朝西, 车库和bonus room朝东好吗?朝西晒的房间,夏天很热吗? / f1 S* k1 B" K( i. T( SChiaPet 发表于 2011-2-18 08:00
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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.