The Ultimate Guide To Replacing Boat Windows Yourself

Replacing boat windows can be a challenging task, but with the right knowledge and tools, it can be an enjoyable process. There are many types of boat windows, varying in size, shape and material. Before removing and replacing an old boat window, it is important to take accurate measurements to ensure a tight fit. This includes measuring the width, thickness, and panel size. When choosing a boat window, factors such as material, size, shape, and installation should be considered. Boat windows can be made of different materials such as acrylic, tempered glass, or polycarbonate, each offering unique advantages in terms of strength, clarity, and resistance to breakage and scratching. The installation process may vary depending on the type of vehicle, model of window, size, wall thickness, and other factors. It is recommended to follow a step-by-step guide or seek professional help for a successful boat window replacement.

Measure the window

Measuring your boat window is a crucial step in the replacement process. Here are some detailed instructions to help you measure accurately:

Step 1: Measure the Width

Measure the width of the window at three points: the top, middle, and bottom. Place your measuring tape horizontally and measure from the outer edge of the frame on one side to the outer edge of the frame on the other side. It is important to measure at multiple points because window openings may not be perfectly square. Use the smallest of these three measurements when ordering your replacement window.

Step 2: Measure the Height

Now, measure the height of the window. Again, take three measurements: one at the left side, one at the centre, and one at the right side. Extend your tape measure vertically and 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. Use the smallest of these three height measurements for ordering.

Step 3: Check for Square

Measure the diagonals of the window to check how much the opening is out of square. This will help you determine if you need to reduce your width and height dimensions accordingly.

Step 4: Thickness and Panel Measurement

In addition to the width and height, you should also measure the thickness of the window and panel. This is important for finding a seal with the correct fit.

Step 5: Allow for Clearance

Remember that the portion of the window that fits into the wall opening must be smaller than the hole. A typical clearance is 1/8 inch between the window frame and the wall.

Step 6: Record Measurements

Finally, record your measurements, making sure to note the width and height separately. It is a good idea to write down all your measurements to ensure accuracy and avoid confusion.

By following these steps, you will have accurate measurements for your boat window replacement, ensuring a proper fit and a successful installation.

Remove the old window

Removing the old window is the first step in replacing your boat windows. This process can be done in several steps. Firstly, it is important to take accurate measurements of the window to ensure a tight fit for the new window. Measure the width, thickness, and size of the window.

Next, you will need to remove the screws on the trim ring on the inside of the boat. Once the screws are removed, the window can be pushed out of the opening from the inside. You may need to apply force to remove the window. If the window is sealed, you will need to release the sealant from under the window flange. This can be done by working around the outside flange with a thin putty knife. Select a corner of the window, work the flange loose, and push the corner out.

Once the window is removed, carefully remove any residual sealant that is stuck to the outside wall. This can be done by scraping up the surfaces and rubbing away the residue with paint thinner. If the surface has corrosion, use abrasives such as sandpaper. It is important to ensure that the surface is clean and smooth before installing the new window.

Clean the window frame

To clean the window frame, you'll need to remove the old window and its frame. This is a crucial step as it will allow you to access and clean the window frame thoroughly. Here's a detailed guide on how to clean the window frame during your boat window replacement project:

Removing the Old Window and Frame:

• Use a flat-head screwdriver to pop off the plastic screw caps or protectors covering the screws that hold the windshield in place.
• With a Phillips screwdriver, remove the metal screws and set them aside with the screw protectors.
• Lift and remove the old windshield from the frame.
• If your boat model requires it, use a rivet gun to pry off the entire frame from the deck before removing the old windshield.

Cleaning the Window Frame:

• Once the old window and frame are removed, inspect the frame for any residual sealant or corrosion.
• Use a paint scraper to remove any old sealant or adhesive. Be careful not to damage the underlying surface.
• If there is corrosion or stubborn residue, use sandpaper to scrape and sand the affected areas.
• Clean the window frame and surrounding areas with a degreaser, such as acetone.
• Mix isopropyl alcohol (IPA) with water in a 50/50 ratio, and use this solution to wipe down the window frame and surrounding areas. This will help remove any remaining residue and prepare the surface for the new window installation.

Preparing for the New Window Installation:

• After cleaning, ensure the window frame is thoroughly dried.
• If necessary, make any needed repairs to the window frame or surrounding areas, such as filling holes or cracks with epoxy.
• Test fit the new window to ensure proper alignment and make any necessary adjustments.

By following these steps, you will have a clean and prepared window frame, ready for the new window installation. Remember to take your time and work carefully to ensure a successful boat window replacement project.

Test the new window fit

Testing the new window fit is a crucial step in the window replacement process. Here is a detailed guide to help you through this process:

Test the Fit

Before permanently installing the new window, it is essential to test its fit in the exposed opening. This step is best done with two people working together. Carefully insert the new window into the opening, ensuring that the exterior window flange overlaps the opening sufficiently to create a good seal. This seal is critical to prevent leaks and water damage.

Determine the Need for Shims

Shims are small pieces of material used to centre and secure the window in the opening. Assess whether shims are required to centre the window. If the window is not perfectly centred, shims can be inserted between the window and the bottom or sides of the opening to achieve the correct alignment.

Prepare for Permanent Installation

Once you are satisfied with the window's fit and have determined the need for shims, remove the window again to prepare for the permanent installation. This step may include cleaning the window frame and the opening to ensure no residual sealant or dirt will interfere with the new installation.

Apply Sealant or Tape

Depending on the type of window and your boat's specifications, you may need to apply a sealant or adhesive tape to create a watertight seal. Follow the manufacturer's instructions for proper application. For example, if using an adhesive tape like 3M VHB tape, ensure the surface is clean and dry before applying the tape. If using a sealant, ensure the surface is clean and slightly wet for better adhesion.

Reinsert the Window

With the sealant or tape in place, carefully reinsert the window into the opening. Ensure the window is centred and the exterior flange overlaps the opening as intended. This step may require two people: one to hold the window in place and the other to secure it with screws or clamps.

Secure the Window

Use the screws provided with the window for installation. Longer screws can puncture the window frame and cause leaks. Centre the clamp ring on the inside of the window and install the screws. Use a radius measurement tool to double-check the window's alignment and ensure it is secure.

Install the Window Screen

Finally, install the window screen by inserting it into the screen track and pushing it up and pivoting it into place. This will complete the installation process.

Testing the new window fit is crucial to ensure a watertight seal and proper window alignment. By following these steps, you can ensure a successful and durable window replacement for your boat.

Install the new window

Now that you have successfully removed the old window and cleaned the window frame, it is time to install the new window. This process can be done in several ways, depending on the type of window and boat. Here is a step-by-step guide to help you through the process:

Step 1: Dry fit the new window. Before you begin, it is important to dry fit the new window to verify its fit. This process is best done with two people. Ensure that the exterior window flange overlaps the opening sufficiently to create a good seal. Determine if shims are required to centre the window in the opening.

Step 2: Prepare the window for installation. With the window lying face down on a soft surface, apply seal tape to the flange. Start in the middle of the bottom of the window and overlap the two ends by approximately half an inch. Pull off the backing of the tape.

Step 3: Mist the perimeter. Use a spray water bottle to mist the perimeter of the opening on the outside of the boat. This will prevent the tape from sticking to the outside wall before you are satisfied with the final position of the window.

Step 4: Remove the window screen. During installation, remove the window screen to prevent damage and to make it easier to handle the window.

Step 5: Insert the window. When you are ready, insert the window into the opening. This is typically a two-person task. One person should hold the window in place while the other centres the clamp ring on the inside of the window and installs the screws provided.

Step 6: Check the window's alignment. Use a radius measurement tool to double-check that the window is aligned correctly within the opening.

Step 7: Install the screen. Finally, install the screen by inserting it into the screen track and pushing it up and pivoting it into place.

Your new boat window is now installed! Remember to take your time and follow the instructions carefully to ensure a successful installation.

Frequently asked questions