what is R factor? how do you have UV on the windows? 2 d; `- R0 ^* @8 {0 O5 P. I6 DChiaPet 发表于 2011-2-18 08:53
/ r& X; A: A9 D/ YR factor is used to determine insulation capability. . o( m' G/ S. w! g( Q \) g) l/ o8 \7 [" |! ~+ L/ xHere 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. 8 y6 A' P5 t+ P" r0 ]# B6 @3 j* ?# Q( R: Q* |6 _& G. Q
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 * i1 B/ B. C/ d+ ] |" |2 e
R factor is used to determine insulation capability./ C) k) a: u0 r/ q0 c% c4 K4 [
' m5 p4 z+ g6 q m9 C# c( W
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. 0 ]1 H% M h( f& N1 z ..." M/ }" S# Y* \. ]* y, {* K/ T7 n
小黄 发表于 2011-2-18 09:06
8 ^( k' a% [4 [0 B) lThank you for your reply. But would sun-stop coating cost too much?
would sun-stop coating cost too much?/ c0 d& A5 `6 E9 I" W2 s( X. O' O! A
ChiaPet 发表于 2011-2-18 09:09
5 Y! @! j) O; Y+ H8 TAsk your builder to give you an exact quote. " w, _6 g: F- W. _% u6 o1 LYou don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote., {% ~& \& K" z# v, {& }, }7 A' Y
You don't have to upgrade all the windows. Only the important ones. % e+ }% X9 t6 E( G: K: o; g! i& ]4 q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?+ l/ d P: Y0 W/ K& b2 ?+ X
ChiaPet 发表于 2011-2-18 08:00
. m& p4 k5 p4 \* V! _% t! A; O. e : G) ^+ V: r/ {! D5 R: Y- |. Pit must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.