Inside the frame, staple cardboard to cover the opening, then put foil on the cardboard to block the light. A couple of screws to hold up the frame against the wall or ceiling should be fine. So from the outside, all they see are the blinds, they need not know what you have done inside.

How do you block the sun from vertical blinds?


Quote from Youtube video: If you're looking to cover gaps on existing blinds or shades you have two options the first is to layer draperies on top blackout draperies will be the most effective.

How do you block the sun window with blinds?





Solar screen shades are a great sun blocking blind made from fabric. These are the best shades if you want to prevent the sunlight and heat from entering your home without blocking the view from your windows. Because of their insulating features they will save you some money on your energy bills.

How do you darken existing blinds?

Install opaque lined curtains or drapes over existing blinds for excellent darkening qualities with minimal installation hassle. The opaque vinyl lining and fabric double as window insulation, and cleaning is less labor intensive than with blinds. Simply dry-clean or throw the curtains in the wash and you’re done.

Do vertical blinds block out light?

A question we get asked a lot about Vertical Blinds is do they work well as a blackout blind. The honest answer is No. Vertical blinds can be made with blackout fabrics, but due to the design of Vertical Blinds (being made of individual strips of fabric) you could never describe them as blackout blinds.

How do you truly blackout a window?

Different Ways on How to Blackout A Window

  1. Install an Awning. Many people do not know how to blackout a window. …
  2. Get a Mesh Liner. …
  3. Cover Your Window in Aluminum Foil. …
  4. Place Privacy Film on the Windows. …
  5. Treat Your Window with Film. …
  6. Blackout Shades. …
  7. Install Cordless Blackout Window Shades. …
  8. Black Out the Light with Curtain Liners.

How do you make a window darker?





Change colors in Custom mode

  1. Select Start > Settings .
  2. Select Personalization > Colors. …
  3. Under Choose your color, select Custom.
  4. Under Choose your default Windows mode, select Dark.
  5. Under Choose your default app mode, select Light or Dark.

How do I make my room pitch black during the day?

To make your room pitch black during the day, tape foil over your windows to block sunlight. Then, close your blinds or curtains over the foil to get rid of any light that’s still coming through.

How do you blackout windows with foil?

Quote from the video:
Quote from Youtube video: And then you can stick tin falls straight to it now there is a thing to be wary of and that's if the Sun is directly hitting. The aluminium foil. Then it will actually get the aluminium foil.

Does putting tin foil on windows work?

Yes. Emergency management agencies specifically recommend using “aluminum foil-covered cardboard” between windows and drapes to reflect heat back outside.

Does foil block UV rays?



Aluminum (Al) is the only material that has a high reflectivity for ultraviolet rays in the wavelength range of 250 nm to 400 nm. Furthermore, an aluminum foil that is lightweight and has high workability is suitable as the ultraviolet reflecting material.

Can aluminum foil damage windows?

Can aluminum foil damage windows? Yes, but on bare minimum. The only damage an aluminum foil can do to damage windows would be small scratches that a glass buffing material can always fix. Other than this, aluminum foil on windows is generally safe to use for wrapping windows.

Why would someone put foil on their windows?

What’s the purpose of covering windows with tin foil? ​To Stay Cool:​ The most common reason people line their windows with tin foil is to keep their house protected from the sun’s rays — and the radiant heat associated with them.

Why do people put foil on door knobs?



Keep paint off doorknobs



When you’re painting a door, aluminum foil is great for wrapping doorknobs to keep paint off them. Overlap the foil onto the door when you wrap the knob, then run a sharp utility knife around the base of the knob to trim the foil. That way you can paint right up to the edge of the knob.