How long does elastomeric coating last

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Our team sees silicone roof coatings lose their efficacy on a regular basis. There are multiple instances where we saw silicone roof coatings compromise their quality within a matter of years due to normal wear and tear. Many commercial roofing contractors would lead you to believe silicone roof coatings are the magic bullet for all ponding issues. Fact: Silicone roof coatings start to absorb water over time, leading to saturation points on commercial roofs.

In fact, silicone roof coatings have one of the highest vapor permeability rates in the commercial roofing industry, often because it is incorrectly applied. Source Do silicone roof coatings work to fix ponding issues? Absolutely, they do work, but they must be professionally applied by an experienced and thorough commercial roofing contractor.

Unfortunately, silicone is highly resistant to any other material sticking to its surface once the applied substance finishes curing. If any repairs are needed for a commercial roof with a silicone coating, it can be very difficult to make any material stick to the silicone surface. For example, if you have an exposed opening in your roofing surface, simply applying spray foam to make contact with the silicone coating typically does not work.

The spray foam SPF will not adhere to the silicone surface. You will need to remove the existing silicone so the foam will stick. That also means you may need to replace the now-removed silicone with another layer of silicone. Silicone is generally a one-pass product so you save on man hours with applying it. The reason is silicone roof coatings usually have a higher volume of solid materials inside their composition.

This allows us to apply a single coat without worrying about coverage and quality. While installation and clean-up! It tends to cure faster than most other materials. This means that it can shift with a wall or roof in climate changes and structure settling.

Drawbacks: More Substantial Cost — It can cost up to fifty percent more than regular paint, but it does cover the same space with a much thicker coating than standard paint. Experienced Painter Needed — Since the makeup of this paint is very different from conventional paints, it is very difficult to work with and apply.

If you do not have a person that is used to working with this type of paint, it can be applied incorrectly or even be weakened by thinning it out. An inexperienced painter might also try to charge you more for the product, but put less than required on your structure. May Create Unwanted Lumps — If this product is not applied correctly, it can cause it to look bumpy, not presenting its correct appearance and can lead to cracking.

A solution to this is to put more than one layer of the product on the surface. Does Not Permeate — Elastomeric paint does not go through the base coating surface, so if you have any repairs needed for oversized fractures or holes you will need to take care of them before proceeding.

It is also necessary to properly clean the area that the paint or coating will be applied to so that there will be no bonding issues. Backrolling Spray Requirement — If you are painting with a sprayer, you will need to backroll each coat, before you can proceed with the next. By following this step, you will be able to cover all of the surface and not just parts of it.

Unclear Product Instructions - Some of the product labels do not detail the needed information on the number of coats that need to be applied, as well as the thickness that it needs to be.