what is R factor? how do you have UV on the windows?7 N8 s7 P2 ^/ F0 c& C6 ?
ChiaPet 发表于 2011-2-18 08:53
( ?8 s. b( r: [; S" z+ F( t4 P, nR factor is used to determine insulation capability.. A& M& n5 E. a4 O1 y8 u2 I; V
6 D) o2 z$ L+ k! Y8 _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.% G& q! D7 ]6 g# t! C1 j
% t/ ]9 i& w; g8 C! Y; M5 y" CHowever, 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.& D1 d2 A c. ?) G
+ w& a& ~# L0 Q: G9 i/ 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. 7 @: Q' R: `5 r5 q- Q6 b) x' x ... 5 |& k7 E& I5 P8 z/ p4 J$ 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? $ u# v# D! `9 vChiaPet 发表于 2011-2-18 09:09
+ ^3 ^+ b5 i8 c+ Q2 S6 F" PAsk your builder to give you an exact quote. - a6 n3 W: @6 j4 oYou don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.8 X8 Q- N, @7 j8 h1 q+ `8 p: K
You don't have to upgrade all the windows. Only the important ones. $ g3 ]- o, |$ Y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? ( |( I Q8 y M& K! J" ], XChiaPet 发表于 2011-2-18 08:00
& P# J% _. h( W2 e' s, a6 B) H : e, m& i3 u xit must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.