elastomeric-acrylic-coatings-application-handbook

Sorry but, with all elastomeric finishes, it boils down to scraping. Good ol RVs require excellent ol elbow grease. Use a chemical paint stripper for around roofing fixtures and areas you can't get it all off. You could use it over the whole roofing system but, the question is ... would you wish to? The stuff is simply nasty to deal with and extremely unhealthy to breathe and do not let it get in contact with your skin.

Elastomeric Acrylic Coatings Application Handbook

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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 roofing system will toss you for a loop. Lap sealant looks more like somebody was attempting to put icing on a cupcake.

And if somebody has actually recaulked an area, there are a lot more blobs on top of the older blobs. It appears counter-intuitive to the goal of avoiding water intrusion since the application does not necessarily motivate water to recede. Even a professionally used application of lap sealant around an air vent looks more like a small retention pond after a rain.

If you require to recaulk on area on your camper's roofing, you initially need to clean all those unclean mounds and, per the manufacturer, use more mounds of caulk on top of the old caulk rather than removing it. You are expected to inspect your roofing system a minimum of when a year and apply caulk as required.

The previous owner might not have cleaned up the old caulk prior to plopping more mounds of new caulk on top. We have actually gotten rid of old caulk that removed easily due to the dirt and grime underneath. We've discovered air pockets in between layers of caulk. We've even found caulk mounds that leaked out small water beads when pressed, most likely due to pinholes.

When you're all set to examine your roofing system, start by giving the roofing and the caulk an excellent cleansing. Here's a link to our DIY roof cleaner. After rinsing everything off, pay attention to where water might be pooling; specifically around the caulk. Once it's dry, use chalk to draw a circle any areas that have bad drainage.

Try to find indications of brittleness, fractures, pinholes, little cratering, or edges that easily lift up. Once again, use the chalk to draw circles around those areas that need attention. Air pockets, fractures and crevices within several layers of old lap sealantI choose to get rid of old caulk instead of blob more on top.

To avoid tearing a rubber roofing membrane or scratching an aluminum roofing system, shimmy the tool around the edge of the caulk up until it starts to lift. It's most convenient to do this when outside temperatures are above 80 degrees, otherwise you could use a hot air weapon or blow clothes dryer to thoroughly heat up the caulk.

The is to get the old caulk as flush to the rubber surface area as possible. Have a little tub, denatured alcohol, and rags nearby to tidy up as you go. Store the can and rags in the little tub. Prevent letting the denatured alcohol make contact with the rubber roofing system for too long.

Have a tub handy for all the old sealantOnce the majority of the old caulk has actually been removed and the surface has been cleaned up and dried, use painter's tape to specify the boundary of the location to be caulked. All the old sealant has actually been removedSelf-leveling lap sealant truly does not level itself out to a great surface.

Being particular about how caulk looks, and that it promotes proper drain, I utilize a modified application procedure. It's excellent to know ahead of time how the caulk will act. A tube of caulk that is more than one year old can be harder to feed using a caulk gun and may not self-level as efficiently as a recently produced tube of caulk.

Less than 6 months is good. If there's no date, just avoid televisions that have dust on them or used bottom edges. Use a piece of cardboard and lay a little object like a screw or bolt in the middle of the cardboard to check out your caulk. Apply a 3/8 inch bead of sealant in a straight line down the length of the cardboard, making sure to likewise cover the screw or bolt.

The sealant should begin skinning over in 5 minutes. Older tubes of sealant may not self-level as well or they might skin over far more quickly. Repeat this test for each tube of sealant as you are all set to use it. As soon as you understand the how your tube of sealant will carry out after application and how rapidly it will establish a skim coat, you can begin applying beads of sealant.

Roof Coat Elastomeric Coating Product Data Sheet

Keep the sealant beads approximately 1/2 inch away from the painter's tape (or whatever distance your tube test spread indicated). Within 5 minutes of application, dip your fingers or a plastic putty knife into the water/Dawn mixture, then "help" direct the sealant leveling by utilizing light pressure to press the bead flow into the desired slope or shape.

Utilize the very same strategy to create a feathered edge towards the painter's tape. As soon as the sealant establishes a skin coat, eliminate the painter's tape. Lap Sealant Treatment Time5 Minutes Skins over4 Hours Waterproof48 Hours 80% Cure30 Days 100% CureAnother option is to skip utilizing lap sealant entirely and utilize roofing sealant tape rather.

https://www.youtube.com/embed/hHfUVntLZJ4

The cost of the tape is similar to utilizing lap sealant (and perhaps a little less costly). We utilized Beech Lane tape, which we selected up at Amazon for under $35 (here's the link if interested). Rubber Sealant Applied To Camper Roofing System CleanedAnd here's a picture after applying a fresh coat of rubber roofing system finish.