Custom cut blinds will more effectively block out light than thinner ones loosely fit to a window opening.
Best way to block out light from window.
Anyone with photophobia or light sensitivity knows the pain of tendrils of light coming around the edges of blackout curtains blinds or blankets anything that you can throw over windows to block out light.
People here in california use it all the time to block the bright hot sunlight out of their room.
They are usually made of fabric wood steel aluminum or vinyl.
Blackout shades have grown immensely popular in bedrooms media rooms and nurseries.
One of the best ways to block heat from windows exterior shutter and shades are extremely effective in reducing solar heat gain.
Measure the dimensions of your window panes and trace these measurements onto a sheet of aluminum foil.
Cut out the measured foil and stick it in your window with a few strips of painter s tape.
Aluminum foil is easy to use be sure and have the shiny side face in your room flat side out.
Another way to take care of light gaps and get the ultimate blackout effect is to layer your window treatments.
Indow sleep panels do.
6 use cardboard or a large vertical blind to block light at top of window cut a piece of cardboard or use an extra wide vertical blind and lay it on top of the drape rod.
Thicker dark vinyl or metal materials are the most effective but neither will equal mylar cellar shades because small amounts of light will seep between the slats even when you close the blinds.
Often referred to as room darkening shades these offer complete privacy at all times of day let in no light and offer no exterior view when lowered.
Block out the windows with foil if you don t have blackout drapes and blinds.
Exterior shutters and shades.
If you want to completely block out light from a window the best option is adding a blackout shade or liner.