How to Waterproof Shower Window Cover :10 Best Methods to Try

Keeping your shower window cover waterproof is essential for preventing water damage to the surrounding walls and floors. Without proper protection, you risk replacing parts of your bathroom due to mold or rot.

How to Waterproof Shower Window Cover

Fortunately, you can take some easy steps to keep your shower window cover protected from moisture and other elements that could cause damage.

In this article, we will discuss how to waterproof shower window cover using a few effective methods to ensure their longevity and prevent costly repairs. Read on for more information.

10 Best Methods on How to Waterproof Shower Window Cover

1. Hanging Shower Curtains

A shower curtain is one of the most common ways to waterproof a shower window cover. Shower curtains are made from waterproof fabric and come in various styles, colors, and patterns. 

Hanging your shower curtain correctly will help prevent water from seeping through the sides or bottom of your window cover.

2. Applying Silicone Sealant

Applying silicone sealant to the edges of your shower window cover can effectively waterproof it. 

Silicone is a durable, waterproof material that forms a flexible bond when applied correctly and will prevent any water from seeping through the seams and crevices of your window cover.

3. Installing Window Flashing

Window flashing is a waterproof material that can protect your shower window cover from moisture.

Installing Window Flashing

It’s usually applied in strips along the edges of your window cover and should be installed by a professional for the best results. 

If your window cover is made of wood, you may also want to consider using waterproof paint or sealer.

4. Using Vinyl-Clad Jam Proof

Vinyl-clad jam-proof is a waterproof material that protects your shower window from moisture. 

It’s usually applied in strips along the edges and the interior of your window cover, and it’s usually backed with an adhesive for easy installation. This waterproofing method is great for windows exposed to much water or moisture.

5. Installing Window Well Covers

Window well covers can be an effective way to seal off your shower window from the elements. 

These covers are made from waterproof materials like plastic or metal and are designed to fit securely around your shower window, providing extra protection against water damage.

6. Applying Liquid Rubber Membrane

The liquid rubber membrane is a type of waterproof material that can be sprayed onto the exterior of your shower window cover.

This protective layer helps keep moisture and condensation from seeping through the seams, reducing the risk of damage to your walls and floors.

7. Installing Window Blinds

Window blinds are a great way to block sunlight, reduce heat, and add an extra layer of waterproofing protection.

Installing Window Blinds

The window blinds will help prevent water from seeping through the cracks in the window cover while also providing privacy when needed.

8. Adding Silicone Caulk

You can use silicone caulk to fill in gaps or cracks on your windows. Silicone caulk is easy to apply and can provide a great seal. 

Start by purchasing the right caulk for your windows, then use a caulking gun to apply the material. 

Start from one end and work your way down, pushing the caulk into the crack and creating a smooth surface. 

Allow the caulk to dry completely before painting or priming your windows for further protection.

9. Using a Plastic or Nylon Window Cover

You may consider using a plastic or nylon window cover for the best waterproofing protection. These covers are designed to fit securely around your windows and provide protection against moisture damage. They’re easy to install and can be found in various colors, styles, and sizes.

10. Using Glass Blocks Instead of Windows

If you’re looking for the ultimate waterproofing protection, installing glass blocks instead of windows may be your best bet.

Using Glass Blocks Instead of Windows

Glass blocks are designed to provide an airtight seal so no moisture or condensation can get through. 

They also come in various colors and styles, making them a great way to add style and character to your bathroom.

If you decide to use this option, make sure that you hire a professional to properly install the blocks, as improper installation could cause water damage.

Few Things to Consider When Protecting Your Shower Window Cover

1. Check your lighting needs: Before choosing a waterproof material for your shower window cover, consider what lighting you need and if the material will suit you.

Determine the type of light you need and the amount of natural light that comes through your window. This will help you choose a material that prevents water damage and provides enough lighting.

2. Consider the cost: Different materials may have different costs associated with their installation, so factor this into your decision. While some materials may be more expensive, they may provide better protection and last longer.

3. Consider air circulation: Leave a gap between the window and the cover for proper air circulation. This will help reduce the build-up of condensation, helping to prevent water damage.

4. Consider the room space: Measure your space before deciding on a window cover. This will ensure that the cover fits properly and is suitable for the size of your shower window.

Consider the Room Space

You may need a different material if your window is too big or small.

5. Check the cover materials: Before buying a material for your shower window cover, ensure it is waterproof and won’t shrink or fade over time. This will help ensure the cover lasts and provides adequate protection from water damage.

Considering these tips, you can ensure that your shower window cover is properly installed and will provide long-lasting protection against water damage. 

With the right materials and installation methods, you can protect your home from costly repairs due to water damage caused by a leaky window.

How to Protect Window Cover in Shower From Water Spray?

Waterproof window coverings are a great way to protect your windows from water spray inside or outside the shower. These covers come in various materials and colors to find one that matches your decor perfectly. 

To ensure maximum protection, the cover is sealed around all sides of the window to keep any water out.

You should also use caulk or a weather-resistant sealant to ensure that the window and frame are fully waterproofed.

To further protect your window from water spray, you can install a rain guard, which helps keep water away from the window while allowing light to come in.

This can help keep your shower area nice and dry while providing ventilation. Lastly, you can install a shower curtain that will move with the water spray and help protect your window from splashes or spills. 

By taking these steps, you can easily protect your window cover in the shower from water spray.


By following these methods on how to waterproof shower window cover, you can ensure that your shower window cover is waterproofed and protected from moisture and condensation.

This will help keep your walls and floors safe from water damage while creating a stylish and comfortable shower environment.

So, whichever method you choose, ensure all of your seals are properly placed and done correctly to get the best results possible.

And remember—if you’re uncertain about any part of the waterproofing process, it’s always best to hire a professional for help. Good luck!

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