Replacing Boat Window Screen Mesh: A Step-By-Step Guide

Boat window screens are essential for keeping out bugs and pests while letting in fresh air. Over time, the mesh on boat window screens can become damaged or torn and will need to be replaced. This is a simple DIY project that can be completed in a few easy steps. In this article, we will walk you through the process of replacing the screen mesh on your boat window, so you can enjoy fresh air without any unwanted guests!

Remove the existing window screen

To remove the existing window screen on a boat, follow these steps:

Firstly, place the window on a flat work surface. If your window is still attached to the boat, you will need to remove it. For clamp-style windows, the most common type, start by removing the screws found on the trim ring and on the inside of the boat. This will allow you to push the window out of the opening. There may also be a sealant under the window flange that you will need to release. Work on this from the outside of the boat, using a thin putty knife around the flange. Pick a corner and loosen the flange, then push the window out. Carefully take the window out of the hole and remove any residual sealant from the outside wall.

Now, with the window on your flat work surface, you can begin to remove the screen. Use a flat-head screwdriver to carefully pry the old spline out of the groove and remove the screen. The spline is the cord, usually made of vinyl, rubber, or foam, that secures the mesh screen to the window frame. If the spline is wood, it may be fixed with staples or nails, which you can remove with a screwdriver or claw hammer.

Once the spline is removed, take out the old screen mesh. If your screen frame is wooden and the mesh is held in place with staples or nails, you will need to remove these with a screwdriver or claw hammer.

Dispose of the old screen and spline responsibly.

Measure the window opening

Measuring your boat window opening is a crucial step in ensuring your new screen mesh fits perfectly. Here is a detailed guide to help you through the process:

Firstly, it is important to measure the width of the window opening. Take your measuring tape and measure between the jambs at three points: the top, middle, and bottom of the window opening. It is important to measure from the surface of the jambs and not from any trim strips or parting beads that may be present in your old window opening. After taking these three measurements, use the smallest one as the final width measurement for ordering your window screen.

Next, you will need to measure the height of the window opening. Measure from the high point of the window sill (the surface closest to the inside of the window) to the top of the window opening. Similar to the width measurement, take three measurements: one at the left side, one at the center, and one at the right side of the window. Again, use the smallest of these three height measurements for ordering your window screen.

When measuring the depth, ignore any pulleys or parting strips as these will be removed during the replacement window installation. To ensure a proper fit, there must be at least 3 1/4 inches of opening depth between the inside window trim and the outside blind stop strip.

By following these steps and taking accurate measurements, you can be confident that your new window screen mesh will fit securely in your boat window opening.

Buy a new window

If you're looking to replace the screen mesh on your boat window, you may want to consider buying a new window altogether. This is especially true if the frame is badly damaged or warped, as it will be difficult to attach a new screen.

There are a variety of boat windows available for purchase, with different types of frames and screens. When buying a new window, you'll want to consider the size, frame material, and screen type.

Size

First, measure the size of the window you need to replace. Boat windows come in a variety of sizes, and you may need to order a custom size if your window is not a standard dimension. Standard window sizes range from 18 inches by 20 inches to 36 inches by 74 inches.

Frame Material

The frame material is an important consideration, as it will impact the durability and appearance of your window. Common frame materials include:

• Aluminum: Lightweight and durable, aluminum is a popular choice for boat windows. It is also available in a variety of finishes, such as bright or charcoal/black.
• Wood: Wooden frames may be more susceptible to warping and damage, but they can add a natural, classic look to your boat.
• Stainless Steel: Strong and durable, stainless steel frames are a good choice for those who want a long-lasting window.

Screen Type

The type of screen you choose will depend on your specific needs and preferences. Here are some common options:

• Fiberglass: Fiberglass screens are affordable, easy to install, and come in a variety of colors. However, they may sag, weaken, and tear more easily over time.
• Aluminum: Aluminum screens are sturdy, resistant to sagging, and less visible than other screen materials. They are a good choice for those who want a durable and discreet screen.
• Solar Screens: Solar screens reduce the amount of heat entering your boat and protect your interior from UV damage. They are a good choice for blocking out sunlight and keeping your boat cool.
• Pet-Resistant Screens: If you have pets on board, consider a pet-resistant screen that can withstand their weight and claws.

When buying a new boat window, you can choose to purchase just the window or a complete kit that includes the window, spline, and installation tools.

Remember to consider the cost of the window and any necessary installation tools or hardware when making your purchase.

Fit the new window

Now that you've removed the old window and cleaned the opening, it's time to fit the new window.

Firstly, you'll want to check that the new window fits in the exposed opening. This part is tricky to do alone, so grab a helper if you can. Insert the window into the opening, ensuring that the exterior window flange overlaps the opening to form a good seal. You should also check whether you need shims to centre the window in the opening.

Next, prepare the window to be installed permanently. Lay the window on a flat, soft surface and apply seal tape to the flange, starting at the middle of the window's bottom. Overlap the two ends by around half an inch and pull the backing off the tape. If you don't want the tape to stick to the outer wall of the boat, mist the perimeter of the opening with a spray water bottle.

Now, fix the window to the opening using the screws that came with the window. Don't use other types of screws, especially longer ones, as you risk puncturing the frames and causing leaks. Have your helper hold the window in place while you centre the clamp ring on the inside of the window and install the screws.

Finally, install the screen. Insert it into the screen track, pushing and pivoting it into place.

Install the window

Now that you have your new windows and have checked that they fit in the exposed opening, it's time to install them.

Firstly, lay the windows on a flat and soft surface. Take the seal tape and apply it to the flange, starting at the middle of the window's bottom. Overlap the two ends by around half an inch. Start pulling the backing off the tape. If you don't want the tape to stick to the outer wall of the boat, mist the opening's perimeter with a spray water bottle.

Next, remove the window screen during installation to prevent it from being damaged. Take the screws that come with the window and use them to fix the window to the opening. Do not use other types of screws, especially longer ones, as you risk puncturing the frames and causing leaks.

Have someone hold the window in place once you are satisfied with the final position. Center the clamp ring on the inside part of the window and install the screws that came with the product.

Finally, insert the window screen into the screen track, pushing and pivoting it into place. This will complete the installation.

Frequently asked questions