what is R factor? how do you have UV on the windows?' p6 E0 n. O: Q' J2 L8 L
ChiaPet 发表于 2011-2-18 08:53
7 s( d# ~7 a' _4 I5 dR factor is used to determine insulation capability. 6 Z% o8 B+ n# L+ Y$ y . I( H- Y3 O# ^" Z. y$ zHere 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 d! K- l0 D# I
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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.
本帖最后由 ChiaPet 于 2011-2-18 09:12 编辑 : ?9 |& X% Q8 d% D: I2 W; P x
R factor is used to determine insulation capability. 4 W Y/ `* R4 l) d/ Y" V 2 q( Y1 j1 ?* v( c1 ^) }: 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.0 `; p& y: t4 H" b: Y' u( D) F, T
... $ B% i( }2 [0 u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?% g# v0 V( Q7 ^8 I: p, v. j
ChiaPet 发表于 2011-2-18 09:09
1 \0 E/ R; ?# I2 ~; ~) b; SAsk your builder to give you an exact quote.5 Z+ u+ J7 ?) `- E5 o1 e0 v
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.7 J7 Z& y2 S( ]. c7 C/ G4 O
You don't have to upgrade all the windows. Only the important ones.8 ^; `, G* l; k! b' h
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?" \: R. ]8 F; }" h* E
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.