removing 1979 Trillium rear window - Fiberglass RV

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Old 06-01-2014, 12:07 AM   #1
Senior Member
Name: Claire
Trailer: 1978 Trillium 4500
British Columbia
Posts: 261
removing 1979 Trillium rear window

I thought it might be helpful to post some pictures of the process of removing a window in a Trillium.

The first picture is of the plastic strip that held in the rear window along the bottom. It was held in with rivets on the inside under the window. We were able to drill out the rivets before the removal of the window, and then used screws to reinstall it after replacing the wood.

The next ones show the removal of the window using a long handled screw driver. Once the screws are removed from the window, the wood on the inside is free to shift to the side so that it can be moved out of the way of the window. So don't pry to hard between the window and the wood. Make sure you have someone to catch the window!

Once the window is out you can see the wood and check it for rot and moisture.

I was very fortunate and found a sales person who was able to cut the plywood to the shape I needed, and then I cut it to length. I purchased half a sheet of plywood cut so that it was 8 feet long and 2 feet wide and then ripped into strips with one edge slopped. I did look into using pressure treated plywood, but I could not find any dry sheets, so I went with regular plywood. I took one of the old ones with me when I went shopping.

We used a double thickness of "putty" when we reinstalled it and then finished off the outside with Mono exterior caulk. We did not caulk the bottom edge of the window as we were advised it needed to be free to drain.

The paint job was chipped a bit, but once the Mono was on, it hid most of the chips. We will now touch up the paint and paint the mono so that dirt etc does not stick to it.

Hope these pictures help others understand what is going on inside the window frame.
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flooring 027.jpg   flooring 031.jpg  

flooring 034.jpg   flooring 039.jpg  


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Old 06-01-2014, 01:00 AM   #2
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Name: Dave
Trailer: Casita SD17 2006
Posts: 3,181
Good pics, thanks
Borrego Dave is online now   Reply With Quote

trillium, vin

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