But it is not cost effective and the thermal insulation will not be good.
Mylar blanket window insulation.
Their room gets the hottest their window a c unit always is first to get installed and gets the most use throughout the summer.
I figured if you could keep warm using an emergency mylar blanket then it would be pretty effective at keeping heat from leaving through your windows.
This is just a quick fix i came up while sitting in my freezing house one cold day.
Mylar film will reflect infrared radiation will stop wind and will block moist.
Product title primacare hb 10 emergency foil mylar thermal blanket.
Abn heavy duty fiberglass fire retardant blanket 4 x 6ft small welding fireproof thermal resistant insulation 4 6 out of 5 stars 498 24 99 24.
I am reading about using mylar emergency blankets in windows to keep the summer sun out of my kids room.