Skip to Content

How to Block Light from the Door? (Read This First!)

The light easily penetrates doors and windows and enters the room. Entering light through the door into the house can be sometimes pretty disturbing. For this reason, several measures are taken to block light from entering through the door.

This article will provide an in-depth answer and offer you deep insights into the procedures of blocking light from the door.

How to block light from the door?

You can take permanent and temporary measures to block light from the door. For temporary measure, you can hang a thick blanket over the door. But this won’t permanently fix the problem. You can use weathering strips or hang curtains over the door to block light permanently from the door.

You can block light from the door. Entering or penetrating light through the door can sometimes be disturbing. This can be a problem if sunlight floods through the door regularly. In that case, you have to block the light from the door.

You can take permanent and temporary measures to block light from the door. The temporary solution will provide you with short-term blocking but if you want long-term effects then you have to permanently block light from the door.

Here we have mentioned blocking of light from different areas of the door –

From door frame

Light penetrates through the door frame. You can block light from penetrating the door frame. Using weather strips to block areas from where light is leaking can be a good approach to stop light from coming through the door frame.

The step by step procedures to use weathering strip in the door frame is mentioned hereafter –

Weathering strip:

You can fix the weatherstrip in the door frame. It is an effective way to block light coming from the door frame. Weathering strip is available in the market. You can buy the weathering strip from any supermarket.

Sticking the strip:

After purchasing the weathering strip from the market, you have to stick the weathering strip on the door frame. The work is not tough and you can glue the strip without any help from the professional.

Often weathering strip comes with glue material. You only have to stick the strip on the door frame. In this way, the weathering strip will prevent the light from entering through the door frame. In this manner, you can block the light from entering through the door frame.

From door cracks

Door cracks are pretty common if the door is damaged. Cracks can be a tiny nook on the door but it is enough for the light to penetrate. Usually, old doors tend to crack. And light penetrates through the cracked portion of the door.

The step by step procedures to seal the door cracks are mentioned hereafter –

Using sealant:

Sealant is a material used to seal cracks and nooks in the wall. A sealant is used to seal the crack of the door. Sealant is a glue-type material that seals the leaks formed on the door surface.

Using sealant to shut off door cracks is pretty cheap. Different types of sealants are available in the market. You have to purchase a sealant from your nearest market and seal all the door cracks applying it.

Curtain:

A curtain is commonly used to block light from the door. If you hang a curtain in front of the door, it will block light from entering. Using a curtain is a usual method to block light from the door. It is a cost-effective way to stop light from penetrating through the door.

The curtain blocks light from entering through the door cracks. A curtain made of thick clothing material will block the majority of daylight.

From under door

Light can enter under the door. The empty areas between the door and floor surface. Light will enter under the door as there is no hindrance to prevent light from entering. Light mostly enters through under the door area.

Ways to block light from under the door area are mentioned hereafter –

Folded cloth:

A cloth placed under the door will effectively prevent light from entering. It is cheap and effective to block light from entering through the under-door area. A folded fabric or cloth can be placed under the door. It will fill the empty area between the door and floor surface.

This method is pretty simple and quite effective. As the empty area is blocked by the folded cloth, the light can’t penetrate through the covered area. In this way, you can block light from penetrating under the door.

Folded paper:

Similar to the folded cloth placed under the door approach, you can also place a paper that is properly folded, under the uncovered door area. Placing a folded paper will block light from entering through the door.

Door draft blocker:

You can use a door draft blocker to block the light bleeding through the bottom of the door. It is also a common way to block light from entering through the door.

From door window

Light will enter if the window is not covered properly. For this reason, a curtain is used to cover the door window. Light can’t pass through the curtain. Cloths and fabric prevent light as the light can’t bleed through the cloths.

Ways to block light from the door window are mentioned hereafter –

Curtain:

The door window can be covered with a curtain made out of cloths. The curtain will block light from entering through the door window. Curtains are made using thick fabrics. 

Light can’t penetrate through the thick fabric material, hence the curtain prevents and blocks the light from coming through the door window.

Using a curtain to block light is a pretty cheap approach. The curtain will block the majority of the sunlight from entering the room.

To make a curtain, you have to search for blackout clothes in the market. The cloths are specially made for the curtain and the fabric blocks most of the light.

From sliding glass door

Light enters through the sliding glass door. Glass is mostly light penetrative meaning light can enter through the glass. But some glass is made to reflect light. Many sliding glass doors are made with light non-penetrating glass materials.

But there are other approaches that you can follow to block light from entering through the sliding glass door.

Ways to block light from the sliding glass door are mentioned hereafter –

Hanging a curtain:

Hanging a curtain is the best way to block light from entering the sliding glass door. The curtain prevents light from penetrating the door. The curtain is made of blackout fabrics. The fabric is made specially to block light from entering. 

You can hang a curtain in front of your sliding glass door and the curtain will block light from entering.

Using a curtain to block light is effective and the price of blackout fabric is also within limits. So you can make a curtain for your sliding glass door at a cheap price. Blackout clothes are available in the market. 

All you have to do is to buy some clothes from a store and make a curtain.

From French door

Light can penetrate through the French door. Light enters through the glass of the door. For this reason, a curtain can be hung in front of the door. The curtain prevents light from entering inside.

Ways to block light from the sliding glass door are mentioned hereafter –

Hanging of curtain:

You can hang a curtain in front of your French door. The curtain will prevent light from entering through the glass of the door. The curtain will block most of the harsh sunlight during the daytime.

The curtain is made using blackout cloths. Blackout cloths are thick fabric materials that block light. Light can’t penetrate through the blackout cloths. For this reason, you can hang a curtain made from blackout cloths in front of the French door.

From the gap between the door and door frame

Light can enter through the gap between the door and door frame. Ways to block light the gap between the door and door frame are mentioned hereafter –

Weathering strip:

You can use weathering strip to block light. You have to purchase the strip from a market and glue the strip on the door frame.

The weathering strip will work perfectly to block light coming from the door frame.

Hanging a curtain:

You can simply hang a curtain in front of the door. The curtain will block most of the light coming from the gap between the door and door frame. This method is cost-effective and requires less effort to block light from penetrating.

Why can I see light through my door? 

Seeing light through the door is somewhat quite irritating indeed, but that can certainly occur for various reasons. Some of them are discussed below –

Door frame:

Light can easily penetrate through your door frame. 

Door cracks:

Door cracks are pretty common if the door is damaged. Cracks can be a tiny nook on the door but it is enough for the light to penetrate. Usually, old doors tend to crack. And light penetrates through the cracked portion of the door.

Under the door:

Light can enter under the door. The empty areas between the door and floor surface. Light will enter under the door as there is no hindrance to prevent light from entering. Light mostly enters through under the door area.

Door window:

Light will enter if the window is not covered properly. 

Sliding glass door:

Light enters through the sliding glass door. Glass is mostly light penetrative meaning light can enter through the glass. But some glass is made to reflect light. Many sliding glass doors are made with light non-penetrating glass materials.

Final thoughts

You can use a weathering strip to block light from entering through the door. But hanging a curtain in front of the door is the widely followed approach. The curtain is made of blackout fabrics that block light from penetrating and it is cheap to purchase.