Sorry however, with all elastomeric coatings, it comes down to scraping. Good ol RVs require excellent ol effort. Utilize a chemical paint stripper for around roofing components and areas you can't get it all off. You could use it over the whole roof but, the question is ... would you wish to? The things is just nasty to deal with and very unhealthy to breathe and don't let it get in contact with your skin.
Elastomeric Roof Coating - Can You Apply It Yourself?
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If (like me) you are the type of person who applies caulk with the objective of getting professional-looking, smooth joints, then the application and look of lap sealant on a camper roof will toss you for a loop. Lap sealant looks more like somebody was trying to put icing on a cupcake.
And if someone has actually recaulked an area, there are much more blobs on top of the older blobs. It appears counter-intuitive to the goal of avoiding water invasion because the application doesn't always encourage water to recede. Even a professionally used application of lap sealant around an air vent looks more like a mini retention pond after a rain.
If you need to recaulk on location on your camper's roofing, you initially have to clean all those unclean mounds and, per the producer, apply more mounds of caulk on top of the old caulk instead of eliminating it. You are expected to inspect your roof at least when a year and use caulk as needed.
The previous owner may not have cleaned up the old caulk before plopping more mounds of new caulk on top. We've gotten rid of old caulk that removed quickly due to the dirt and grime underneath. We have actually discovered air pockets between layers of caulk. We have actually even discovered caulk mounds that seeped out small water beads when pushed, most likely due to pinholes.
When you're ready to examine your roofing system, begin by giving the roofing system and the caulk a good cleansing. Here's a link to our Do It Yourself roof cleaner. After rinsing whatever off, pay attention to where water may be pooling; specifically around the caulk. Once it's dry, use chalk to draw a circle around any locations that have bad drain.
Elastomeric Reflective Roof Coating
Search for indications of brittleness, cracks, pinholes, little cratering, or edges that easily raise up. Again, utilize the chalk to draw circles around those locations that need attention. Air pockets, cracks and crevices within numerous layers of old lap sealantI choose to eliminate old caulk rather than blob more on top.
To prevent tearing a rubber roof membrane or scratching an aluminum roof, vibrate the tool around the edge of the caulk up until it starts to lift. It's easiest to do this when outdoor temperatures are above 80 degrees, otherwise you could utilize a hot air weapon or blow dryer to thoroughly warm the caulk.
The is to get the old caulk as flush to the rubber surface as possible. Have a little tub, denatured alcohol, and rags close by to tidy up as you go. Store the can and rags in the small tub. Avoid letting the denatured alcohol reach the rubber roofing system for too long.
Have a tub useful for all the old sealantOnce the majority of the old caulk has been removed and the surface has actually been cleaned up and dried, use painter's tape to specify the border of the location to be caulked. All the old sealant has been removedSelf-leveling lap sealant really does not level itself out to a nice surface.
Being particular about how caulk looks, which it promotes proper drain, I use a modified application process. It's great to understand beforehand how the caulk will behave. A tube of caulk that is more than one years of age can be harder to feed utilizing a caulk weapon and may not self-level as smoothly as a newly produced tube of caulk.
Less than 6 months is good. If there's no date, just avoid televisions that have dust on them or worn bottom edges. Utilize a piece of cardboard and lay a small object like a screw or bolt in the middle of the cardboard to test out your caulk. Use a 3/8 inch bead of sealant in a straight line down the length of the cardboard, making sure to also cover the screw or bolt.
Kool Seal White Elastomeric Roof Coating
The sealant must start skinning over in 5 minutes. Older tubes of sealant may not self-level as well or they may skin over a lot more rapidly. Repeat this test for each tube of sealant as you are prepared to utilize it. When you know the how your tube of sealant will perform after application and how quickly it will establish a skim coat, you can begin applying beads of sealant.
What Are Elastomeric Coating And How Are They Used
Keep the sealant beads roughly 1/2 inch away from the painter's tape (or whatever range your tube test spread suggested). Within 5 minutes of application, dip your fingers or a plastic putty knife into the water/Dawn mix, then "help" direct the sealant leveling by using light pressure to push the bead circulation into the wanted slope or shape.
Use the same technique to produce a feathered edge toward the painter's tape. As soon as the sealant develops a skin coat, eliminate the painter's tape. Lap Sealant Cure Time5 Minutes Skins over4 Hours Waterproof48 Hours 80% Cure30 Days 100% CureAnother alternative is to avoid utilizing lap sealant altogether and use roof sealant tape rather.
The price of the tape is equivalent to utilizing lap sealant (and perhaps a little less costly). We utilized Beech Lane tape, which we got at Amazon for under $35 (here's the link if interested). Rubber Sealant Applied To Camper Roofing System CleanedAnd here's an image after applying a fresh coat of rubber roofing system finishing.