- The SHF does not fund double-glazed or thermal units in vinyl or aluminum frames
- The SHF does fund double-glazed or thermal units set in wood frames to match original windows
- The SHF does fund wooden storm windows: fixed, opening or removable
- Replacement windows should, whenever possible, use “old” glass (i.e. rolled) if suitable to the era of the home (and if available)
- Replacement windows should replicate the historic windows in size, number of panes, maintain shape, frame, color and reflective qualities of the glass
- Muntin bars (the wood pieces dividing small panes of glass) are to be placed between separate pieces of glass, not just on top of one large piece of glass
- New windows or storms must be primed before installation; be sure your price quote includes priming, painting, hardware and installation
- Storm windows can increase the life of your historic windows by providing protection from the elements; storm windows also provide heat and sound insulation
- Retain original operating mechanisms and hardware where possible
