Roofing Fix

ItsyRV wrote:

Adrian2Door wrote:
Do you have any membranes that you would recommend. I went to two RV parts store and both talked bad about 3rd party EPDM and said only good stuff about dicor and didn’t recommend TPO

I have an aluminum roof so when it came time for replacement, I choose a liquid coating. Since I don't use membranes I'm not in a position to advise on any particular brand or type. I can tell you why I made the decision to use what I did, but you'll need to speak to those with a better understanding of membranes.

From my experience and conversations with other RVers, the type of roof and materiel is really equal to the installation quality. You can spend thousands on the best roof membrane yet have a hack installer and it fails within weeks. Likewise, you can run to the home improvement store, but a coupe of gallons of silicone roof coating for a couple hundred dollars, properly prep and apply the coating and 50 years from now it's still going strong.

When ever a person tells me to buy or not buy a product, I always ask them to explain why. Nothing worst than getting recommendations based on nothing but "that's what Frank used" or "Ed said that other product is bad".

I’m very interested in the liquid rubber roofing. Do you have any sources I can learn more about the preparation and install?

Adrian2Door wrote:
Do you have any membranes that you would recommend. I went to two RV parts store and both talked bad about 3rd party EPDM and said only good stuff about dicor and didn’t recommend TPO

I have an aluminum roof so when it came time for replacement, I choose a liquid coating. Since I don't use membranes I'm not in a position to advise on any particular brand or type. I can tell you why I made the decision to use what I did, but you'll need to speak to those with a better understanding of membranes.

From my experience and conversations with other RVers, the type of roof and materiel is really equal to the installation quality. You can spend thousands on the best roof membrane yet have a hack installer and it fails within weeks. Likewise, you can run to the home improvement store, but a coupe of gallons of silicone roof coating for a couple hundred dollars, properly prep and apply the coating and 50 years from now it's still going strong.

When ever a person tells me to buy or not buy a product, I always ask them to explain why. Nothing worst than getting recommendations based on nothing but "that's what Frank used" or "Ed said that other product is bad".

Research the liquid rubber roof products that are out there. I just had an RV Armor roof put on and it's guaranteed for the life of the trailer and has a transferrable warranty. I like mine so far. No more checking the Dicor sealant around any openings. Heng's is similar and you can do it yourself. RV Armor requires you use their technician to apply it but they come to you to do it, no taking it to a facility.

My new TT has a TPO roof and many thousands do also.

When a salesman tells me how bad his competition is... I run the other way. What's their price?

ItsyRV wrote:
Polyurethane foam alone will not hold up on an RV roof due to the short span flexing. If used, you'll need to cover it with another material to provide the UV protection and a impervious surface to bridge any micro cracks. Most commercial spray foam roofs are either coated with another product or they have the coating blended into the top foam, but blending isn't very strong against water penetration when dealing with a moving roof structure down a road.

One important consideration is if you want a membrane roof or an applied surface roof coating. A membrane roof is usually a flexible sheet glued to the roof surface to make a continuous waterproof surface. Membrane roofs will have cut opening for all roof penetrations and will need to have a coating applied at penetrations and protrusions. An applied coating is a product applied (usually in a liquid form) to the roof surface and it bonds to the surface making ti;s own continuous waterproof surface. Applied coating contours and wraps around any penetration or protrusion making it's own waterproof seal.

Another important consideration is a membrane roof is like wall paper where applied is like epoxy paint. For most membrane roofs, replacement is rather easy. Applied roofs usually ends up replacing the wood surface as well because it's a bear to get off!

They both have pros and cons so doing a bit of research on which best suits your needs should be the first step along with understanding the terminology and types of various materials.

Do you have any membranes that you would recommend. I went to two RV parts store and both talked bad about 3rd party EPDM and said only good stuff about dicor and didn’t recommend TPO

Gulfcoast wrote:
RV roof by the foot

Do you know anyone who has used this membrane because I went to two RV parts store and they talked bad about every membrane other then dicor EPDM.

Polyurethane foam alone will not hold up on an RV roof due to the short span flexing. If used, you'll need to cover it with another material to provide the UV protection and a impervious surface to bridge any micro cracks. Most commercial spray foam roofs are either coated with another product or they have the coating blended into the top foam, but blending isn't very strong against water penetration when dealing with a moving roof structure down a road.

One important consideration is if you want a membrane roof or an applied surface roof coating. A membrane roof is usually a flexible sheet glued to the roof surface to make a continuous waterproof surface. Membrane roofs will have cut opening for all roof penetrations and will need to have a coating applied at penetrations and protrusions. An applied coating is a product applied (usually in a liquid form) to the roof surface and it bonds to the surface making ti;s own continuous waterproof surface. Applied coating contours and wraps around any penetration or protrusion making it's own waterproof seal.

Another important consideration is a membrane roof is like wall paper where applied is like epoxy paint. For most membrane roofs, replacement is rather easy. Applied roofs usually ends up replacing the wood surface as well because it's a bear to get off!

They both have pros and cons so doing a bit of research on which best suits your needs should be the first step along with understanding the terminology and types of various materials.

Rhino Coating

Gulfcoast wrote:
What roof do you have now? Whats the condition?

it was leaking and completely destroyed. Now it’s new plywood that I just replaced with the old one.