what is R factor? how do you have UV on the windows? / ?2 B2 D4 h; p; a! k, K0 TChiaPet 发表于 2011-2-18 08:53
' Z7 I* ^% I9 {2 ]" a$ lR factor is used to determine insulation capability. * ~& P) k% E) x) h" b 4 h' o# t' }3 n. y% s* c" LHere 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 v# D0 ]# ~/ }; X) n/ _. y. q' M0 R. [* o/ a: x7 N" c0 ]
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. : T* v5 V. E1 T$ t# Y D: s; @' \% j: L, T" j
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 H! }/ {; W. f0 J& E4 G ...' {0 \ Y% Y0 h- Y0 X) y/ `
小黄 发表于 2011-2-18 09:06
u6 p4 e8 `) p5 |/ K# KThank you for your reply. But would sun-stop coating cost too much?
would sun-stop coating cost too much? 2 R) E' u3 o8 s G) {ChiaPet 发表于 2011-2-18 09:09
) h3 T7 j" A+ q2 z7 g7 n9 gAsk your builder to give you an exact quote. % u" I- \( a" O" s, j+ wYou don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.( e$ E Y, j- l
You don't have to upgrade all the windows. Only the important ones. % h% z' \. }; z. j小黄 发表于 2011-2-18 09:13
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Will do. Thank you.
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?! X2 V q- e5 e: _6 K, a
ChiaPet 发表于 2011-2-18 08:00
, v( J7 R+ \( _9 \" G1 m' L 0 a! s: h! O7 N7 V( \it must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.