This technique or similar might work to keep my RV roof replacement at bay for a number of years. A previous owner had one of those giant satellite dishes on the roof. It looks like they must have run into something from above with the satellite dish up. The roof in the section where the dish was is depressed downward into the cabin and created about a kiddie pool size concave reservoir. After buying this, I removed the AC unit, propped up the roof from inside the cabin similar to what you did and applied closed cell expanding foam to stop that area from accumulating water;. It has been under a tarp for over a year. Now I'm considering cutting back the foam and putting fiberglass over the foam to make a clean flat surface ready to remount the AC. Thanks for this tip.
Glad it was helpful. I actually missed a patch where I didn't quite do the resin thick enough, and so water, technically is getting under the surface of the fibreglass onto the old roof. Not a problem, just gotta wait for winter to pass so I can do that little section again. :) So just make sure you're generous with the resin solution as that's the part that sets and gives the strength. Either that or do an entire second layer of fibreglassing. The single layer cost us around $300 CAD
@@DareListFamily Thanks for this video, I was going to ask how much this roof cost you. I saw a bunch of videos about fibreglass but I wasn't sure about this for an RV roof. ( Was wondering about fiberglass not bonding to some sort of metal such as tin rooftop). Please do a video on your repairs on this roof. Thanks buddy.
How did you secure the plywood to the RV? Did you remove all of the old caulk first before beginning the fiberglass project? If so, what did you find to be the best method to get it off? I think I would go with half a batch at a time since it is just one person, me.
Very helpful! Thank you. I'll likely also be applying a big piece of plywood to the roof for the solar panels. I'm not sure if I need to fiber glass the roof (hasn't leaked, yet?), but I know I should definitely apply a lot of sealant. The outside wall material / plastic exterior are flimsy in places (kind of falling apart), so that will also need a lot sealant. I'm actually wondering how I may get the exterior to adhere again to the outside interior surface (thin wood sheet).
Awesome video showing what you did. What was the original roof, was it the white rubber membrane or did you have a fiberglass roof already? Always wondered why people didn't fiberglass RV roofs when the rubber membrane fails, seems like an excellent way to make it stronger. Keep up the vids!
I Love it! thank you for the info, and thanks for the honesty. I would've been there for weeks making sure the paint looked perfect , but it would've been a total waste of time . great video keep em coming :)
The fiberglas is only as good as the bond between the rubber roof/caulking and the luan roof. The rubber roof & caulking should have been removed and repairs started from there. You're also screwing a thicker piece of plywood into 1/8" luaun glued to styrofoam...the screw tension and plywood rigidity may pull the luaun loose.
Mayeb removed all those vents and folded glass into the holes. Also bevel or round over (router) that plywood edge prior to glass work. Remove drip rails and end the glass behind them? Either way hope you guys are leak free for awhile. I really don't understand these terrible factory roof systems from the manufacturer. They seem to cheap out on the most important parts lol
Nope it was fine. We wrapped over the edges by a little bit too and so I think that helped. The previous owners had left the roof in such poor condition that it was barely coated. We didn't show here but we also cleaned the roof and swept it for any debris. The main thing to look out for is having a completely sealed fibreglass coating. Water only needs a tiny hole to start causing havoc on the inside. We missed a tiny bit (or didn't do it thick enough) and had a minor leak run along the outer edge of the van and into a light fitting inside. Because of the new wooden interior, it showed up straight away. We got the van under cover and searched for and recoated that area of the roof.
@@DareListFamily My family operates a small lakeside resort in Arkansas and we have park owned RV's. The major problem we are having is with leaking roofs. This concept that you have shown in your video just may save us a lot of work and money. I'll let you know how it works if we choose to use this technique. Thank you.
@@CraquedEggs I'm thinking of doing a fiberglass stood on my camper and I'm to in Arkansas, fort Smith to be exact and if you did this to yours is love to come see how it turned out.
@@wbforsure2104 My family chose a different route. We are using White Elastomeric Roof Coating from Henry's. Although the fiberglass sounds like it would last much longer and would be my choice if I lived in my own RV.
@@CraquedEggs I have tried a couple of different roof coatings and they don't work or hold up. The first one I tried liquid roof molded (black mold) and they would not give refund it also flaked peeled. The second one called superior has held up longer but is also starting to peel. I am now looking at puting Filon sheet on my roof after replacing all the osb board with treated plywood.
This technique or similar might work to keep my RV roof replacement at bay for a number of years. A previous owner had one of those giant satellite dishes on the roof. It looks like they must have run into something from above with the satellite dish up. The roof in the section where the dish was is depressed downward into the cabin and created about a kiddie pool size concave reservoir. After buying this, I removed the AC unit, propped up the roof from inside the cabin similar to what you did and applied closed cell expanding foam to stop that area from accumulating water;. It has been under a tarp for over a year. Now I'm considering cutting back the foam and putting fiberglass over the foam to make a clean flat surface ready to remount the AC. Thanks for this tip.
Love the idea with plywood underneath the panels, I’ll definitely copy that!
Thanks for a good solution to a possible leaky rv roof... I'll probably do this sometime this spring or summer.
Glad it was helpful. I actually missed a patch where I didn't quite do the resin thick enough, and so water, technically is getting under the surface of the fibreglass onto the old roof. Not a problem, just gotta wait for winter to pass so I can do that little section again. :)
So just make sure you're generous with the resin solution as that's the part that sets and gives the strength. Either that or do an entire second layer of fibreglassing.
The single layer cost us around $300 CAD
@@DareListFamily Thanks for this video, I was going to ask how much this roof cost you. I saw a bunch of videos about fibreglass but I wasn't sure about this for an RV roof. ( Was wondering about fiberglass not bonding to some sort of metal such as tin rooftop). Please do a video on your repairs on this roof. Thanks buddy.
Great idea with the plywood under the panels. I’ll definitely do the same!
How did you secure the plywood to the RV? Did you remove all of the old caulk first before beginning the fiberglass project? If so, what did you find to be the best method to get it off?
I think I would go with half a batch at a time since it is just one person, me.
How is the roof holding up I was thinking about doing this to my rv don’t care for the rubber roof
Very helpful! Thank you. I'll likely also be applying a big piece of plywood to the roof for the solar panels. I'm not sure if I need to fiber glass the roof (hasn't leaked, yet?), but I know I should definitely apply a lot of sealant. The outside wall material / plastic exterior are flimsy in places (kind of falling apart), so that will also need a lot sealant. I'm actually wondering how I may get the exterior to adhere again to the outside interior surface (thin wood sheet).
Hey buddy I know this is an old video but can you tell me where you got your rolls of fiberglass at I really appreciate it buddy thank you
Awesome video showing what you did. What was the original roof, was it the white rubber membrane or did you have a fiberglass roof already? Always wondered why people didn't fiberglass RV roofs when the rubber membrane fails, seems like an excellent way to make it stronger. Keep up the vids!
Could you have put down an inch of rigid fiberglass foam, and then put the fiberglass over it? I live in a very cold area....want better insulation.
I have more of a question is fiber glass working well on the rv. Ive wanted to do mine
I Love it! thank you for the info, and thanks for the honesty. I would've been there for weeks making sure the paint looked perfect , but it would've been a total waste of time . great video keep em coming :)
Damn Nice work! I needed this encouragement. Thanks!
Ciao from Italy
I bought my first camper today
Please tell me if this resin is epoxy or polyster
Thanks
It’s polyester.
Exactly what I want to do to my class c rv.
The fiberglas is only as good as the bond between the rubber roof/caulking and the luan roof. The rubber roof & caulking should have been removed and repairs started from there. You're also screwing a thicker piece of plywood into 1/8" luaun glued to styrofoam...the screw tension and plywood rigidity may pull the luaun loose.
For a guy who has no experience doing anything you sure churn out worthless advice. Thanks for the belly laugh.
@@danielwarpaint1963 There's a lot to learn from him and then from everyone's helpful comments I find.
I only have one question was that an actual rubber roof you fiberglass over top of let me know please
It looked like epdm rubber roof. If it is it should had removed it beforehand.
Mayeb removed all those vents and folded glass into the holes. Also bevel or round over (router) that plywood edge prior to glass work. Remove drip rails and end the glass behind them?
Either way hope you guys are leak free for awhile. I really don't understand these terrible factory roof systems from the manufacturer. They seem to cheap out on the most important parts lol
What did the support underneath look like?
Didn't watch the video huh?
They had a brace from the underneath like you would with a house. It's just a quick few seconds that they show it.
Was there any issues with the fiberglass adhering to the rubber coating?
Nope it was fine. We wrapped over the edges by a little bit too and so I think that helped. The previous owners had left the roof in such poor condition that it was barely coated. We didn't show here but we also cleaned the roof and swept it for any debris.
The main thing to look out for is having a completely sealed fibreglass coating. Water only needs a tiny hole to start causing havoc on the inside. We missed a tiny bit (or didn't do it thick enough) and had a minor leak run along the outer edge of the van and into a light fitting inside. Because of the new wooden interior, it showed up straight away. We got the van under cover and searched for and recoated that area of the roof.
@@DareListFamily My family operates a small lakeside resort in Arkansas and we have park owned RV's. The major problem we are having is with leaking roofs. This concept that you have shown in your video just may save us a lot of work and money. I'll let you know how it works if we choose to use this technique. Thank you.
@@CraquedEggs I'm thinking of doing a fiberglass stood on my camper and I'm to in Arkansas, fort Smith to be exact and if you did this to yours is love to come see how it turned out.
@@wbforsure2104 My family chose a different route. We are using White Elastomeric Roof Coating from Henry's. Although the fiberglass sounds like it would last much longer and would be my choice if I lived in my own RV.
@@CraquedEggs I have tried a couple of different roof coatings and they don't work or hold up. The first one I tried liquid roof molded (black mold) and they would not give refund it also flaked peeled. The second one called superior has held up longer but is also starting to peel. I am now looking at puting Filon sheet on my roof after replacing all the osb board with treated plywood.
How not to repair a rv roof😯