Double pane windows, occasionally identified as double glazed windows, are window units that have two panes of glass. Hermetically sealed, the panes are spaced about fifty percent an inch from one another—adequate distance to make an insulating Room. Very pleased and I am about to purchase additional secondary double glazing https://customstampsbusiness01234.blogthisbiz.com/35676317/the-2-minute-rule-for-glass-panel