I was wondering if anyone has ever had to seal the fiberglass roof on a
conversion van? If so, what did you use to seal it? The leaks are more
like rain seeping in through the crazed paint cracks.

 

Mine only leaked through the screws. I had a black rubber trim that went around the base of the fiberglass cap. i pulled it off and tightened all the sheet metal screws and replaced the ones that wouldn't tighten it stopped all the leaks and wind noise. every screw was loose to a degree. dunno bout the paint cracks, maybe a sealant might work or if its white a rubberized roof coating. I dunno

 

OK, thanks.

 

What conversion is it SubFord? I live in Elkhart and know people from all the converters just about. I like to bug them about problems.

I use Kool Seal and have never had a leak return. However it's white and leaves a texture so it may not look to good repainted. I roll it on with a small or large roller. My RV had a terrible leak. I rolled the whole roof with it and the owners that have it now, tells me it still doesn't leak.

 

It is a Tiara Motor Coach conversion on a 1988 E150.

Thanks for the information.

 

> The leaks are more like rain seeping in through the crazed paint cracks

This means the fiberglass is bad and you have to seal the whole roof with a rubber type paint or compound. JCW sells some in white for RVs. You can buy a variety of stuff from www.westmarine.com.

 

Thanks much for the info.

 

You are welcome. I had more time to search out what I was talking about

Gluvit Epoxy Waterproof Sealer - Quart 133892 RM330K Only $55.99 USD

"One application of this excellent barrier coat finds, fills and seals hidden leaks and cracks in wood and fiberglass. Seals aluminum seam and rivet leaks. Abrasion- and impact-resistant, it flexes with hull or deck to prevent cracking. Compatible with most marine overcoats."