Dear Patrick, . R# l( Y" F( k$ E+ R% l8 j5 u! v3 J / F& ^9 l3 n1 aSorry I cannot type in Chinese now... ( H6 E4 `4 m V- F2 @1 N9 ? ! H0 g) o% }+ ?2 n0 P# oMy house was built in 1990. Now we are planning to replace all the windows. We are thinking of the best quality windows (triple glass with insulation). Do you by any chance know the advantages/disadvantages of this type of window? M% ~' J' Q; m' X
' Z1 O* h: O4 M( p+ Z2 z1 C; J- uOne of my concern is that the window might be too heavy for my house. How do you think?* B; g* `# x5 b" g% C2 Q3 F