Putting Foil On Windows To Keep Heat Out

However while foil may keep out unwanted heat it is unsightly and essentially defeats the purpose of having a window to look outside.

Putting foil on windows to keep heat out.

By completely covering your windows with aluminum foil you will not only block the sun but the aluminum foil will reflect the sun and lower your cooling bills. By covering one side of window sized cardboard panels in reflective aluminum foil and placing them behind the window treatments next to the windows shiny side facing outdoors you can stop at least some heat from entering the home explains ready gov. Here s how to properly to do it. Aluminum foil on windows is most effective at keeping out heat and light when you place it shiny side out and cover its backside with a layer of something else like insulation or cardboard.

Up to 40 percent of undesired heat in a home comes in through the windows. Aluminum is highly reflective which makes it effective in keeping out the radiant heat of the sun. Putting aluminum foil on windows can keep heat out. You can use insulation like bubble wrap in between the window and aluminum to create a thicker barrier.

If needed use duct tape to join cardboard sheets or pieces together for large windows. Add extra three inches to the total length for adjusting and fitting the aluminum sheet to the frame. Measure the windows to get the total area you need to cover.