Painting roof What to use?

Larry,
Thank you for your post. I had not given that any thought at all. I had planned on removing the air conditioner shroud and all the covers over my vents etc. Not sure it will be a concern but if it is I will remove the air conditioner, fasten some thin plywood strips around the opening to raise it up a bit, cover them with Eternabond, and then paint the Liquid Roof on.

The directions for the Liquid Roof product say to make the coating 20mils thick. I don't think that will cause any pooling problems but we'll see. I may give them a call before I tackle the project. Their videos did not mention it either. I appreciate your post! Hope this helps the OP also. :)

Rvusa,
The videos show the installers pouring the product on the roof and then smoothing it with both a squeegee and a short nap roller. I will probably just use a brush to go around the edges and vents etc. and then a roller for the rest of the job. The product is supposed to have about a 4 hour working time after mixing in the catalyst. That should be plenty of time to do my 30 foot trailer. It kind of looks like the consistency of honey in the videos and is supposed to be self leveling.
Barney

Ace hardware sell "extreme solar" roof coating thats good for epdm roofs. In phx. I paid $105 for a 5 gallon pail, and I got 4 coats on a 37 foot roof.

Go around the roof with a paint brush first and pre paint seams and and things that need extra sealing like the skylight and such.

Use a 1/4" nap roller, anything larger than that will pull and leave ridges in the coating. Do every other coat perpendicular to the previous one. I went long ways, across the rv, long ways, and then across the rv. I started out dipping the roller, but eventually just poured a bunch down and just rolled it out.

alpenliter wrote:

LarryJM wrote:

BarneyS wrote:
I have 5 gallons of Liquid Roof sitting in my truck and will be put on my roof just as soon as we get down to Florida.
Barney

What do you plan to do for the A/C since building up the roof around the A/C without removing the lower shroud and the entire A/C will create a pool type ridge around the A/C gasket that would be subject to pooling and possible leaks and the drain holes in the lower shroud are very close to the gasket as shown below.



Larry

Larry, that concerned me too, so I used the Liquid Roof and built a "dam" around the outside. So far no leaks. If I do find that it leaks, I will pull the AC and take the appropriate action.

Well then that would trap the condensate that is meant to drain onto the roof and off subjecting the A/C gasket to long term "submerged" conditions which I don't think it is designed for. It's good you haven't had issues, but I only mention this as if I were to do this I think I would seriously consider removing the A/C and then reinstalling with a new gasket after covering the roof. On trailers in the past, manufacturers would even mount extra roof support in support areas like the A/C and antenna to raise that area like 1/4" or even 1/8" above the surrounding roof to provide proper drainage away from the sealed area of the item.

The liquid rubber roof might no be thick enough for this issue to be much of a concern and I only mentioned this potential issue as something to at least consider and I'm sure Barney will make the right decision since he is knows what he is doing.

Each year when I do my annual roof debris removal I use a very thin flexible 18" plastic ruler to run up under the edge of the lower shroud to get whatever "stuff" has managed to find a home there and I'm amazed at the amount of "KRUD" that has established residence there. :p

Larry

Larry

LarryJM wrote:

BarneyS wrote:
I have 5 gallons of Liquid Roof sitting in my truck and will be put on my roof just as soon as we get down to Florida.
Barney

What do you plan to do for the A/C since building up the roof around the A/C without removing the lower shroud and the entire A/C will create a pool type ridge around the A/C gasket that would be subject to pooling and possible leaks and the drain holes in the lower shroud are very close to the gasket as shown below.



Larry

Larry, that concerned me too, so I used the Liquid Roof and built a "dam" around the outside. So far no leaks. If I do find that it leaks, I will pull the AC and take the appropriate action.

BarneyS wrote:
I have 5 gallons of Liquid Roof sitting in my truck and will be put on my roof just as soon as we get down to Florida.
Barney

What do you plan to do for the A/C since building up the roof around the A/C without removing the lower shroud and the entire A/C will create a pool type ridge around the A/C gasket that would be subject to pooling and possible leaks and the drain holes in the lower shroud are very close to the gasket as shown below.



Larry

Thank you for the tips Jim. I will be sure to do that. :) I am starting to see black through the white on the roof so figured this winter would be a good time to do it while we are down there.
Barney

Barney, when you begin the job, make sure you are wearing clothes and shoes that you have no further need of. Get a box of disposable gloves and have mineral spirits on hand for clean up. Good luck!

I have 5 gallons of Liquid Roof sitting in my truck and will be put on my roof just as soon as we get down to Florida.
Barney

Just found out about another product called Bus Cote. Has anybody ever used it or heard of it?

Queens Carriage wrote:
Mine is a 1997. Did you take the ac off?

I took the AC cover off, as well as the Maxxair covers. This allows you to thoroughly clean the areas that normally don't see the light of day.