I had a problem with the skylight in the shower of my travel trailer leaking I had used dicor twice previously and was very careful with the application of the caulking.It still leaked.I live in rainy Oregon and camp year around so I wasn't going to park it with a blue tarp on it....lol.So I bought a qt of liquid Flex Seal (as seen on TV) I dried off the area with a towel and heated and dried it carefully with a hair dryer. I again carefully filled any suspect holes and cracks with Dicor and brushed one coat of the thick coating about 6 inches wide around and up on the perimeter of the plastic skylight.Success! We have had lots of rain since the repair and it is bone dry inside. I am a believer!Jesseannie

Well then you may be interested in This Recent Thread about Flex Seal :BIn rainy Oregon UV may not be a problem..

So, using the Dicor you covered 6 inches, the same girth as you did with flexseal?Did you dicore over the screws too?I can't imagine Dicore Lap sealant not working. I suspect user error, so curious what your method was.Dicore is good for RVs since it is a good idea to re-do this every few years anyway. Dicore is easy to remove and re-apply.Sounds like by a few years the flexseal will deteriorate so can be cleaned away with a small wisk broom at least.

IAMICHABOD wrote:Well then you may be interested in This Recent Thread about Flex Seal :BIn rainy Oregon UV may not be a problem..Use Henry 887 instead.

Let us know how it's holding up in 6 or 8 months.

ajriding wrote:So, using the Dicor you covered 6 inches, the same girth as you did with flexseal?Did you dicore over the screws too?I can't imagine Dicore Lap sealant not working. I suspect user error, so curious what your method was.Dicore is good for RVs since it is a good idea to re-do this every few years anyway. Dicore is easy to remove and re-apply.Sounds like by a few years the flexseal will deteriorate so can be cleaned away with a small wisk broom at least.I covered the area thoroughly I know what I am doing, I spent 50 years in commercial construction. The issue with the Dicor for this job in my opinion is the small hairline cracks and fissures that happen after application and I doesn't "flow" into those small spaces like a liquid. Thanks for your upbeat post.

Skylight/roof repair | Good Sam Community

Grit_dog
Navigator
Jan 11, 2021
fred42 wrote:
Sorry to go slightly off topic, but if the skylight itself has a small crack, what product would work on that?

Presuming you're not talking about the $20 crank up vent. If so you can get a new cover piece super cheap.
If you want transparent and last a long time, I would use a piece of clear paint protective film like 3M Clear Bra or similar.
And I wouldn't be afraid to put it on the inside instead and save the trip onto the roof if you were so inclined.
theoldwizard1
Explorer II
Jan 11, 2021
jesseannie wrote:
I am a believer!

Come back in a year and tell us how well it held up.
Beaker
Explorer
Jan 11, 2021
Climb up the ladder and fall thru the skylight?
Seems odd.

d3500ram: Looks terrific!!! Although I would have used eternabond.
d3500ram
Explorer III
Jan 12, 2021
Yes, needed to sidestep once up on the roof... it was the only place on the back of the TC that they could place it due to the floor plan layout, not too bad once one gets used to it.

I did use Etrna bond for the actual roof repair. I needed to peel it back about 10 inches to expose and work the roof framing and then laid it back down with the EB on top and all around.

I did not want to EB over the new skylight flange since the first attempt (on the old bubble did not stick.) Also- did not want anything over the new, except for Dicor, so that if the skylight ever needed future replacement then it would be easier to only remove sealant for any new bubble install.

BTW- there is a strip of butyl between the new EB on top of the roof and under the skylight flange with the sealant over it all including new SS fasteners.
RockyMt
Explorer II
Jan 12, 2021
Great report, thanks for the tip

Forum Discussion

Skylight/roof repair

About RV Tips & Tricks

Related Content

Skylights not roof vents

Skylight on roof over shower

Skylight Roof Vent Gears Stripped

Major Repairs

Repair vs. sell