what is R factor? how do you have UV on the windows? 2 F- n! F# a9 f; Q! O) L$ A* dChiaPet 发表于 2011-2-18 08:53
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R factor is used to determine insulation capability. - R5 G* ^% S2 S# Q3 z9 c1 z% ], n# k7 W+ l" R
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.6 m+ o2 v0 S. V! U& q* `! q* O
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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.0 _, u0 m2 a7 K+ C: d( g |! ^4 E
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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. ) F) Y" A) k7 n ... 4 r. R/ k A0 v* x9 g; 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? & |* X0 v2 s2 ?4 [, c$ P9 ?- [ChiaPet 发表于 2011-2-18 09:09
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Ask your builder to give you an exact quote. + N9 X/ x& S+ N0 }8 j4 |$ A$ W- J6 hYou don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote. 7 r9 f* c2 V4 K* NYou don't have to upgrade all the windows. Only the important ones. m* ^; ]' E6 G2 g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?( V1 D/ E( D Y+ O
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.