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Old 01-22-2021, 06:05 AM   #1
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Join Date: Feb 2017
Location: Roseburg
Posts: 357
Walk On Roofs

I pulled the inside vent of my 2017 Coleman 300tq Toy Hauler to see if I could discover the size of my roof sheathing. The roof is 3/8" Plywood sheathing. I'm pretty sure the roof trusses are on 16" centers. This sounds like a walk on roof to me?

When I bought the trailer 3 years ago I was told by the salesman it was not but the service manager said it was. To be on the safe side I always treated it like it was not.

But I'm getting ready to install a solar system and it was time to re evaluate.

Any thoughts.

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Old 01-23-2021, 04:34 AM   #2
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Join Date: Jan 2021
Location: Auburn
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Probably fine, but it won't hurt anything to use a piece or two of thin plywood to distribute your weight. A little aggravating, but it could ensure you don't put too much pressure in one spot if you have any concern.

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Old 01-23-2021, 05:19 PM   #3
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Location: Beaver Dam
Posts: 547
3/8 ply on 16 inch centers will give under foot loading. A poorly made spot on the panel or water damaged spot can give way. Even 1/2" is marginal for junk ply.
Paul Bristol
Dutchman Kodiak Cub KD176RD 2018
Nissan Pathfinder 2015
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