Emily found a simple and cost-effective route to a cooler apartment – prevent it from heating up in the first place.
Using inexpensive and easily found materials — foamboard, aluminum foil, tape and glue — I made insulating panels for my windows that reflect the summer sun away from my apartment, cooling down a room without using a lick of electricity. My bathroom temperature went down 10 deg. F or more with these. Here are my DIY instructions on how to make them.
Related:
DIY Heat blocking curtains
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