A foldup has two equal sashes similar to a standard double hung, but folds upward allowing air to pass through nearly the full frame opening. Allow plenty of time for careful, thorough work. Names, dates or images put on glass were done intentionally, because someone wanted to leave their mark. The plastic storm glazing has been removed from the adjacent window to restore the original window appearance. A dictionary of architecture and landscape architecture. Instead of relocating glass in aluminum frames, historic steel frames should be repaired. Ghost images of the feature are barely visible.
Poor installations in restrictive frames cause distorted reflections from bowing panels often damaging the historic frame.
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German colonists in the mid-Atlantic region also began early glass ventures. Windows may also feature dated plaques commemorating a donor. No ideal formulas have been developed for venting the air space between the ornamental glass and the protective glazing, but it is typically vented to the outside unless the building is air conditioned most of the year. Leaded glass in doors, sidelights, and low windows is particularly susceptible to breakage from accidents or vandalism. Buying what is made for that now costs approx three times as much as normal. It also impairs the overall historic character of the building.