The age old question, which coating should I use Acrylic or Silicone?
Mostly comes down to preference of the contractor!
Acrylic roof coatings:
It almost seems like a revolution happened when the Conklin first introduced Rapid Roof in 1977. Ever since, a number of companies have been massively choosing the acrylic roof coating, so its market bloomed. However, we can’t say that it is without reason.Acrylic roof coatings are contractors’ favorite because they are eco-friendly and relatively price-effective. The main and only purpose at the beginning of an acrylic roof coat was to provide reflection and cool the roof. Purpose expanded so today they are appreciated for being elastomeric. This means that the fluctuations in temperature will probably not affect the coating which is economical an useful
Versatility is acrylic roof coating’s best feature. Pick whatever roof you want, in whatever climate you want; they will always give great protection. Their flexibility makes them a great option for areas where all four seasons still actually exist. Another plus they have is resistance to the UV radiation and their reflectiveness. Also, they are very easy to maintain, they are restored by washing the roof and applying a new coat. Does it get better?
There are two main categories when it comes to roof coating. In the first one, there are urethanes and silicones. They make up a category called solvent-based coatings. Their best property is the longevity. They can last much longer than the water-based coating. On the other side, they do need a little bit more maintenance and care, and they are on the pricier side.The second category is water-based coating. You can mostly find them in the hospitals or universities where you want the smell to be neutral and the price to be lower. You should, however, be aware that they are not very durable and long living
So, to be simple; roof coatings are divided into solvent-based and water-based categories. Solvent-based ones tend to last longer but are more expensive and complicated to take care of. Water-based coatings have less smell, cost less, but they probably won’t have a long lifespan.However, they are easy to recoat and fix. In the long run, it would be clever to organize your re-coating every 8-12 years.
Cons of Acrylic coatings:
Their extreme sensitivity calls for a temperature of 50 degrees when applied. With time they lose their thickness which is called mil thickness and will need to be recoated. They also don’t cooperate very well with water ponding, so if you live in a harsh climate, you will need to think it through additionally before deciding.
Silicone Roof Coatings:
Another very often used coating is the silicone roof coating. It has a task to protect polyurethane foam. They are the best for areas where there are harsh fluctuations in temperature. However, if you live in an urban place with a lot of traffic, you probably shouldn’t pick this coating due to low abrasion resistance.
Silicone roof coatings have been around for quite some time and are mostly used to cover and protect spray polyurethane foam roofs because of the coat’s permeability. They could be a good pick if you live in an area where the UV exposure is frequent and higher, and there are big changes in temperature.
We sure believe that you aren’t surprised that our list is topped by silicone. Silicone coatings are moisture cured, to be clearer, humidity can only promote the process. They are economical because it’s not necessary to put a primer coat before application. They do well in all climates and don’t get hard or fragile if exposed to natural phenomenon. Erosion isn’t something they are weak to and silicone coating can help you with water ponding. Professionals say that this is one of the longest lasting roof coatings and also it can be applied in cold weather.
Cons to Silicone coatings:
The main drawback is the fact that they can tear easily. That’s why it’s good to install them with fabric to give them support and strength. They collect dirt, so some of their reflective properties will go away over time.You will have to remove the coating before replacing it. Because of their softness, Silicone coatings are not the perfect choice for roofs that need to have a lot of maintenance.
Every decision needs some thinking before deciding. Do your research, buy from a respectable contractor or company and make sure the building envelope is safe. If you do all the steps needed, you can be sure you are making a right choice. The one that is economical while being environmentally friendly. Years ago buildings would go through at least three or four roofs. With roof coating, you can make a great change and save a lot of money. Pick for yourself!