Trillium Door Window Help - Fiberglass RV
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Old 12-10-2017, 04:43 PM   #1
Junior Member
Name: JRC
Trailer: market
Posts: 12
Trillium Door Window Help

The door window on the 1975 Trillium I purchased is not leaking but it looks like a crappy job of silicone around the edges.
I am thinking about removing the window from the door to reseal with butyl putty. I have already done all the other windows.

Question -it is a simple as removing the screws from the inside and rivets from the outside to removed the window. I think there is an inside and outside frame. Then resealing the edge with butyl them reinstalling using the screws inside and re rivet the outside?

Thanks for any assistance
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Old 12-10-2017, 08:36 PM   #2
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Name: John
Trailer: 1979 Boler 1700
Posts: 2,048
I have the same type window in my Trillium 4500 door, but have never removed it. I await the response as well. (In the absence of advice, I would do exactly as you described.)

I just finished removing, resealing and re-installing all the windows in my Boler 1700. They have clamp rings similar to the clamp ring on the inside of the window in the Trillium door, but no rivets on the outside of the window frame.
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Old 12-11-2017, 11:05 AM   #3
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Larry C Hanson's Avatar
Name: Larry
Trailer: Trillium
Posts: 440
Door Window


I reseated the door window on my '78 Trillium
using butyl tape. However I did no like the way
the corners protruded so I drilled a hole in each
corner of the frame and used sheet metal screws
to cinch down the joint. I think it sealed better but
the appearance might not appeal to the purist's' eye?

Larry H
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Old 12-16-2017, 12:55 PM   #4
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Trailer: One 13 ft Scamp and One 13 ft Trillium and Two Trillium 4500
Posts: 895
I've removed and re-installed several door windows.. What I've done on most all of the ones I've remodeled is remove the door, then remove the window and lock set then I spray foam the inside of the hollow door, filling slowly from the bottom up until it's totally filled really doesn't add any weight but the door just seems to be more solid and sturdy when closing....This also helps in keeping the door from separating down the road, which has happened on at least two campers before renovated them....
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