Yeah these windows already existed when wooden frames without seals and single panes were the standard. My grandmas house has them so basically at least for 50-60 years. There is no excuse not to have these windows other than cost savings. (Or non availablity or preference i guess…)
We have these windows, they are 35 years old and were most certainly not the first of this kind.
Yeah these windows already existed when wooden frames without seals and single panes were the standard. My grandmas house has them so basically at least for 50-60 years. There is no excuse not to have these windows other than cost savings. (Or non availablity or preference i guess…)