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Post by Teachndad on May 20, 2021 15:40:23 GMT -8
Hi Friends, I tarp my trailers for protection against the elements. I took my Rod and Reel to a rally recently and on the way back one of the roof vent covers had two of three vent lid supports break. This left it hanging by only one connecting support and tilted upwards. I saw it as I walked back from a food run at a fast food restaurant on the way home. The picture below shows what it looked like when I saw it. I am standing on the 5th rung of a 6 foot ladder to take this picture. I had to break it off because I thought the wind would take it for a ride and then where would I be? I still had over a hundred miles to drive. So, I theorized that the weight of the tarps is pushing down on the aluminum covers of the roof vents. Does anyone have any suggestions for protecting the tops of the roof vents from the weight of the tarp? I need something with rounded edges to minimize tarp wear. I thought maybe shallow buckets or plastic or even metal curved bottom bowls might help. That roof vent that is now topless currently only has a taped-on folded ziplock bag over it as a temp fix. All roof vents The top seems to be pushed down as the supporting connectors for the vent cover. Image below shows two of the connecting supports for the vent cover. They appear "squashed". Cheers, Rod
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Post by vikx on May 21, 2021 10:53:36 GMT -8
A deep bowl would work but I would also remove the old brackets and make new ones. I believe the vent cover failed from weather and possible heat rather than the weight of the tarp. It is just old with metal fatigue.
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Post by Teachndad on Oct 16, 2021 21:11:51 GMT -8
A deep bowl would work but I would also remove the old brackets and make new ones. I believe the vent cover failed from weather and possible heat rather than the weight of the tarp. It is just old with metal fatigue. This is on my list of little jobs. Thank you Vikx. Well, I made the thingy I had envisioned with some pool noodles to help keep the weight of the tarp off my vent covers so the other 2 vent covers wouldn’t break off. I cut the pool noodles down the center lengthwise and stacked them so the round side was up. I thought if I used a boxed edge, then it would increase the wear on the tarp. Time will tell if the tape can last under the tarp and if the pool noodles will degrade due to the heat.
url=https://flic.kr/p/2mBvV3c]
Crude, but effective?
Cheers,
Rod
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idaho211
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Post by idaho211 on Oct 17, 2021 6:19:28 GMT -8
I used a inner tube from a wheel barrow to pad them.
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Post by vikx on Oct 17, 2021 9:33:59 GMT -8
How heavy are the tarps? If they are the normal blue or silver plastic tarps, they are not heavy enough to damage a roof vent. If canvas, a lot of weight up there. I honestly think your vent brackets broke from being old. Just driving would cause enough wind to break them. The vents are supposed to be low over the vent pipe to prevent leaks, hence the shape of the bracket. I have tarped many trailers over the years and none of this type of vent have been damaged.
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Post by Teachndad on Oct 17, 2021 21:45:00 GMT -8
The tarps are the grey ones and are heavy when you toss them up on top when all rolled up and I do the same with the 6 Mil plastic underneath. That's my barometer. So, to me it seems heavy when I huck it up on top all closed up, but your experience shows that you have never had a problem. You are right it's got to be the metal fatigue.
Interestingly, the vent that ripped off was the largest one at at least 6" in diameter and at 60 mph would be the first to go. That would add to your argument for metal fatigue.
Rod
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Post by vikx on Oct 18, 2021 10:55:20 GMT -8
You may have to have the brackets remade and attached to the lid. Check heater supply places for similar.
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Post by Teachndad on Sept 12, 2023 4:36:19 GMT -8
Hi Friends, Update: I finally was able to repair the damaged vent cap. I made my own brackets from a 9” strap I found at one of the big box stores in the lumber section. Cut the strip up with aviation snips and then folded in a vice with my friend the hammer using some gentle persuasion. I wanted to use the existing holes in the vent base as well as the vent cap. One hole had to be moved due to damage from the original damage to the vent base. I used cleco fasteners to hold the brackets in place while I fitted the vent cap. I love clecos. Initially, I wanted to use semi tubular rivets to attach the brackets, but the grip thickness on the rivets I had was too great and I had stainless steel pop rivets handy, so thats what I went with. I didn’t think the aluminum pop rivets would be strong enough. Original semi tubular rivets as manufactured were steel.
Cheers,
Rod
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