Fixing RV Window Leaks: Step-by-Step Window Sill Replacement Guide

Table of Contents

1. Introduction
2. The Problem with the Rear Window
3. Steps to Replace the Window Sill
   1. Removing the Screws
   2. Ensuring Safety
   3. Taking Apart the Frame
   4. Examining the Damage
   5. Cleaning the Surfaces
   6. Using Window Seals
   7. Reassembling and Sealing the Window
4. Conclusion

Introduction

In this article, we will discuss the process of replacing a window sill in an RV. We will specifically focus on a rear window that started leaking during a rainstorm. We will provide a step-by-step guide on how to tackle this issue and ensure that the window is effectively sealed, preventing any further leaks. So, let's dive in and learn how to replace a window sill in an RV.

The Problem with the Rear Window

During a recent rainstorm, we experienced a leak in our RV's rear window. While we managed to fix our back wall, it became crucial to address this issue. Even though the leak has stopped for now, we want to be proactive and ensure that it doesn't recur. Thus, we have decided to replace the window sill. This will not only provide a long-lasting solution but also give us peace of mind during future rains.

Steps to Replace the Window Sill

Removing the Screws

The first step in replacing the window sill is to remove all the screws holding the window in place. However, we recommend leaving a few screws intact to prevent the outside part from falling off and potentially shattering. This cautious approach will ensure that we can safely proceed with the replacement process.

Ensuring Safety

After removing most of the screws, it is essential to have someone apply pressure from the outside against the glass. This is to prevent the window from falling and potentially shattering. Once the remaining screws are removed, switch positions with the person outside and carefully lift the window off.

Taking Apart the Frame

With the window removed, it's time to dismantle the frame. This step will allow us to identify any areas of damage or potential points of water entry. We noticed a hole where daylight was coming through during the leak, indicating a possible entry point for water. By thoroughly inspecting the frame, we can effectively address these issues.

Examining the Damage

Upon removing the inside portion of the frame, we could see straight through the window. Further examination revealed discolored areas that had been affected by water runoff. These signs of water entry indicate the urgency of fixing the seal and preventing future leaks.

Cleaning the Surfaces

Before installing a new window seal, it is crucial to clean both surfaces that will come into contact with it. The wall and the window itself need to be free from residue glue or adhesive. We recommend using acetone to wipe down the surfaces and remove any grime, grease, or adhesive. While we advise caution with acetone, as it may damage certain materials, it has proven effective in our case.

Using Window Seals

For the replacement window seal, we opted for high-density foam seals. These seals offer medium resistance to wear and tear, as well as high water resistance. They come with their own adhesion, ensuring a secure fit. These seals can be easily found at stores like Home Depot or Lowe's, often at more affordable prices compared to RV-specific shops.

Reassembling and Sealing the Window

With the surfaces cleaned and the new seal in hand, it's time to put everything back together. Take care to align the window properly and ensure an even seal all the way around. Screw the window back into place, following a diagonal or crisscross pattern for better stability. Once reassembled, thoroughly inspect the outside edges to confirm there are no visible gaps or areas that need additional sealing.

Conclusion

Replacing a window sill in an RV can be a simple yet essential task. By following the steps outlined above, you can effectively address leaks and prevent further water damage. Remember to prioritize safety, cleanliness, and proper sealing throughout the process. With a new window sill in place, you can enjoy peace of mind and a dry interior during future rainstorms.