replacing old vent in 13 77 trillium - Fiberglass RV

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Old 09-16-2017, 09:27 AM   #1
Junior Member
Name: Dennis
Trailer: Trillium
South Carolina
Posts: 20
replacing old vent in 13 77 trillium

Our vent is leaking and needs to be replaced. The size does not not appear to be available. A fan is not necessary just a new vent. What have others done to replace. The Trillium does not have roof support as some other eggs do.

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Old 09-16-2017, 10:53 AM   #2
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Name: Eddie
Trailer: 2014 Escape 21
Posts: 1,572
What size do you need? This is a replacement for the older smaller Scamps.
Heng's - 9" x 9" Mini Roof Vent with Garnish | eBay

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Old 09-17-2017, 09:37 AM   #3
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Larry C Hanson's Avatar
Name: Larry H
Trailer: Trillium
Posts: 309


That is the one I replaced the old with in my '78 1300.
However, I had to put in a 3/4 inch spacer to have enough
headroom to clear the knob/crank when standing at the cooktop.

Larry H
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Old 09-17-2017, 03:29 PM   #4
Name: Duane
Trailer: trillium
New Brunswick
Posts: 88
replacing old vent in 1377 trillium

Hi I used the same vent on my 1976 Trillium It fit without any modification to the opening but I did use epoxy to fill any existing holes as they do not line up with the new vent flange holes. Be sure to place the hinge side to the front of your opening. If you place it backwards the wind will catch it if you leave it open by accident while traveling on the roads. I am 6' tall and I have no issues with the crank at all. Good luck ,Duane
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Old 09-17-2017, 03:33 PM   #5
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Name: Phil
Trailer: 1977 Trillium 4500 (previously a 1978 Trillium 4500, Rpod 171 and Surveyor SV251)
Nova Scotia
Posts: 207
I was able to refurbish our metal roof vent in our 77 Trillium with new seals. I used a roll of foam truck cap tape on the base and lid. Then polished the whole thing. Much more durable than a new plastic one. It was installed on a bed on butyl tape, riveted in place and then a bead of self levelling dicor on the rivets
77 Trillium 4500
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Old 09-17-2017, 03:36 PM   #6
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Min's Avatar
Name: Gord
Trailer: Recently purchased an original 13' Trillium, that still needs a name!
British Columbia
Posts: 134
I replaced mine with a larger vent.

On the roof I added some wood blocking, with epoxy, matte and cloth, to make a raised area. Kind of like the way a skylight is on the roof of a house.

I wanted to do it this way so that there is no chance of water/snow pooling around the vent while open.
Min (Gord)
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Old 09-18-2017, 02:39 AM   #7
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Name: Mike
Trailer: Bigfoot
Posts: 143

I was told that vent was common on tent trailers when i got mine from arrkan trailers in Edmonton Alberta.
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Old 09-22-2017, 12:30 AM   #8
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Name: Jan
Trailer: boler
British Columbia
Posts: 134
I have a 13 ft boler and replaced the small vent with a 14 inch. It sure helps with ventilation

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