what is R factor? how do you have UV on the windows?- Q# G9 R% H& }
ChiaPet 发表于 2011-2-18 08:53
( w. Y8 p) |) H% \* t( {9 [R factor is used to determine insulation capability./ y5 {4 _! y0 r& A
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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. ; i% {, D1 U0 ^; C3 h% i w7 d, ?+ v. m! g D6 r; s
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 . K) B4 v# u E* z
R factor is used to determine insulation capability.7 m' X( k7 ]9 P, i
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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. , D; K( G7 n2 D* J) { ... , r \. y+ }* m$ F" C$ z6 S小黄 发表于 2011-2-18 09:06
% v% D- D/ l- ]Thank you for your reply. But would sun-stop coating cost too much?
would sun-stop coating cost too much?' P6 P3 [* \& a% P* \, e# _
ChiaPet 发表于 2011-2-18 09:09
, P+ W# N9 l' D# QAsk your builder to give you an exact quote.4 c( `8 b6 K4 `2 R2 `9 P( {' t J
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.& f9 o+ i9 p# v" e/ a
You don't have to upgrade all the windows. Only the important ones." u9 @, V# H- C
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?8 h j: T. q5 {: @" M4 O6 o) }! z
ChiaPet 发表于 2011-2-18 08:00
" E) }# u- `/ Q9 z& C0 e 5 B0 \5 e2 b8 T. k2 D& |it must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.