I have a smallish backyard, 90 x 60 feet. It is a bit tight for kids playing
back there. Last summer one of the expensive insulated glass windows got
broken. I'd like to put some sort of plastic panel, as a storm window, to
help protect them. I don't open these windows and I don't need them as an
emergency egress as there is a side window and an outside door in the room.
The windows are about 40 inches square. What do I need and how should I go
1) Look for a storm window kit. See if they have tempered glass. Tempered
should handle most impacts well.
2) Acrylic plastic panel. Has many trade names such as Lucite and Plexiglas.
It must go into a channeled frame. Channel must give some expansion room.
Don't screw it direct to the window frame. Screws are a stress point and it
may crack around the holes. You have to clean it with water (no Windex!) and
a soft cotton cloth to keep it clear. Forget the thin acrylic at the
hardware stores. You need 1/8" thick for your size.
3) Polycarbonate. Lexan is a trade name. It is the toughest of all, but it
has a softer surface than acrylic and scratches easy. It will also haze in
the sunlight and it is very expensive. Home Depot sells both acrylic and
Lexan (sorry about the plug).
If your up to building frames, acrylic is probably your best bet.
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