what is R factor? how do you have UV on the windows?) D' m" y6 c" i) F, M' [5 A* q5 v3 V
ChiaPet 发表于 2011-2-18 08:53
: x0 R- H {6 _4 iR factor is used to determine insulation capability.3 I( @/ Q; J2 k8 y
& c1 f4 V* x3 {% I0 HHere 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.+ _1 g' [2 x9 u! v: T9 j; `
; D9 { ^) D0 _# pHowever, 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.% [) L- T7 G7 L6 S7 ~$ R
9 j0 t5 _, K+ |$ c$ ^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.+ D: k) [4 Y/ K7 j
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小黄 发表于 2011-2-18 09:06
; P8 g! H0 u$ {, J" C7 n1 X. nThank you for your reply. But would sun-stop coating cost too much?
would sun-stop coating cost too much?0 j: u3 s4 ?, z; _3 `
ChiaPet 发表于 2011-2-18 09:09
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Ask your builder to give you an exact quote.% o- V! g2 i k+ o0 w/ ]( X: V
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote. $ @. P" g/ u& d0 J+ F! ZYou don't have to upgrade all the windows. Only the important ones. 8 u' i# t x0 O/ m* {. Q; ?& A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?1 g0 {' T$ g9 S }" N) X/ T4 B5 t; u
ChiaPet 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.