what is R factor? how do you have UV on the windows?& M* M' d+ l4 p7 V& M, \( n4 m1 \
ChiaPet 发表于 2011-2-18 08:53
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R factor is used to determine insulation capability.' E2 r: s& B8 a2 `1 U2 C u
4 R/ k& L* c1 R1 m: {; f5 jHere 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.$ j. I$ Y7 a8 d9 V1 f0 M. |
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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.5 I! [, y* g1 \( S) U
2 n( q& P6 e c; aHere 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. 6 ]! Q" t1 P3 r Y9 H# J+ b4 G ... " V7 f( n0 r3 h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? & W/ Z0 O- R1 ^ChiaPet 发表于 2011-2-18 09:09
' _+ h A" f# A1 f: C: cAsk your builder to give you an exact quote. ! e5 x' D7 y! T1 Y- ]. aYou don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.3 B# {; e' ~4 V! g3 e
You don't have to upgrade all the windows. Only the important ones. : g$ m* ?5 u2 Y% i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?; k5 s4 y3 w$ j3 i, A0 @. 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.