what is R factor? how do you have UV on the windows?8 E7 X& [" C/ f0 ?- A2 d4 n
ChiaPet 发表于 2011-2-18 08:53
$ R. V' w g: l0 z# U8 z# kR factor is used to determine insulation capability. - S H( o5 R4 o: N5 M- C3 F( x4 _: ~0 ?& v
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. 1 @+ h" D1 [6 e; X: \# D8 `4 a, \- w4 a- `, d( V
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 8 w E* l& j; |2 E6 d
R factor is used to determine insulation capability. 1 W0 n/ M4 I6 r7 h1 i1 U6 f. X: ]! `; Y
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. 3 Z- P1 j8 ]. ?8 V! ~ ... 6 T H8 o8 b( Y" @: s8 N小黄 发表于 2011-2-18 09:06
" ^8 A) U6 g) M- x3 eThank you for your reply. But would sun-stop coating cost too much?
) e' b$ s# S- J7 `4 W
Ask your builder to give you an exact quote.$ j; S5 U' ~# d* R- G5 P! y. e, y6 s
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.; p! ]% n& m5 ]7 X; V* S
You don't have to upgrade all the windows. Only the important ones. 8 j4 y0 P/ ~: R- Q1 {小黄 发表于 2011-2-18 09:13
+ k/ f5 B" q9 V$ T1 A7 q- P5 e
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? 9 K" k' C) P9 b. dChiaPet 发表于 2011-2-18 08:00
4 _# s: U. D4 K& n5 F3 Q3 g1 O. H: n- R$ a, g) F
it must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.