RV roof chalky

Hornnumb2 wrote:
My roof is pretty chalky, seems like the black layer is fine but top layer is beat. Is it something that can be coated or time for new? Thanks Michael

There is a cost verses return at this stage.

If you plan on keeping the camper a good long time, consider looking at these two products. They are a high solids roof coating with a warranty that will outlast your camping days. The recommended thickness for the open areas is 40 mil. Other areas over seams and joints are thicker.

Crazy Seal, 50 year warranty on the product, you order it online.https://crazyseal.com/

Henry Tropicool, life time warranty on the product, you can buy at some Home Depots or other commercial roofing supply places.
https://henry.com/retail/white-roof-coatings/887-tropi-cool-100-silicone-white-roof-coating

The Crazy Seal will cost more then the Henry. Both work very well. Both have 3 formulations/viscosities of product for different applications. Very thick product for patching over old caulk etc, a caulk style pump tube, (still thick), and large open area brush or roller thinner product.

Crazy Seal was developed for the RV industry. Henry is a commercial roofing company who developed the product for commercial roofs. They later expanded the rating for RV's due to it's ability for flex. Both have different marketing, one is in the RV industry, the other commercial roofing industry.

If your roof has large radiuses at the gutter rails and a 3 to 6" long vertical section of roof, lets talk about that.

A major need for these 2 coatings, and any other roof coating, the prep work to clean the roof is a must. This includes all caulk. The coatings will not bond to dirt and a no bond to dirt is not covered under warranty. I also suggest a demold of the roof before using the coating.

These two coatings will eliminate the need for any more Dicor or other brand of lap sealant.

If you have a dip on the roof, both of these coatings can handle ponding water and not break down.

If you have used Eternabond on the roof, let's talk about that as the 2 coatings above or other coatings will not stick long term to the top white layer of the Ebond. There are work arounds.

There are other coatings that cost less, they last shorter lengths of time, it comes back to how long you want to keep the camper.

Hope this helps.

John

Although not needed I have for years occasionally applied Dicor liquid rubber to my TT roof for extra protection and keep roof nice white and clean looking and feelgood feeling to me. It was easy and fun using very long handle paint rollers with no mess to clean up.

TurnThePage wrote:
The chalking is normal, but annoying how it stains walls. I coated mine with Hengs Rubber Roof Coating. It worked great and keeps the RV much cooler than before. There are several out there, and I imagine they all perform similarly.

I used Heng's also this summer, has stopped the Chalking, and roof is staying cleaner.

The chalking is normal, but annoying how it stains walls. I coated mine with Hengs Rubber Roof Coating. It worked great and keeps the RV much cooler than before. There are several out there, and I imagine they all perform similarly.

I wash my roof gently only prior to coating it with Heng’s.