what is R factor? how do you have UV on the windows? ' x" P/ _/ \7 G MChiaPet 发表于 2011-2-18 08:53
) G' L0 g: J+ @1 d2 ~( G$ WR factor is used to determine insulation capability. ( e+ Q( S, p/ W) P5 M( ^" }% y - t% _! G* Q* P3 mHere 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.5 ?0 E, r2 u, O
) X: Y* v+ ]2 ~; \! RHowever, 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.4 {6 P/ M! G% P- O
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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. e- H, T( h$ M% a3 r. z ... 3 R9 ^" I# w% a, R/ @/ n8 K小黄 发表于 2011-2-18 09:06
2 l% C- ]: h \; b7 `# M* \Thank you for your reply. But would sun-stop coating cost too much?
would sun-stop coating cost too much? " _( L& x0 f& f& sChiaPet 发表于 2011-2-18 09:09
0 y3 i; l# E% t- H0 R8 n4 TAsk your builder to give you an exact quote.$ ]) h D0 _6 p& Z( ?9 ?7 A
You don't have to upgrade all the windows. Only the important ones.
Ask your builder to give you an exact quote.% O% r* @. m2 {4 O& C" y
You don't have to upgrade all the windows. Only the important ones.7 V5 j4 P, ?) u+ y- X' I
小黄 发表于 2011-2-18 09:13
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Will do. Thank you.
t, |/ G, S* a/ ^+ } ; W( l& @' C) J2 c: i0 r: B( ^0 mit must be one of the best, get lot of sunshie, summer may be a little hot, but winter it will be so marm.