Choosing the Right Type of Roof Coating for Your Property

January 24, 2018

Is the roof of your commercial building in need of new coating?

Picking the right coating is important to ensure you always keep the roof in top shape.

If you neglect to coat your roof with the right coat, it might end up costing you more money in the long run.

Read this guide to see which roof coating is right for you.

Consider These Factors

Picking the right roof coating for your commercial roof is important to extend the life of your roof and prevent premature damage.

Before you pick a coating, consider the following:

Condition of Your Current Roof

In order to figure out which coating to get, make sure you inspect the condition of your current roof.

You might pick the right coating, but if your roof is in poor condition it will do you no good.

Have a contractor inspect it. A contractor will let you know if the roof's structure is in good condition and you can move on to the coating.

If it's not, you might need to do the necessary repairs before doing anything else.


You might think a certain type of roof coating is perfect for your roof. But if you don't take into account the climate where you live, it might turn out to be a poor investment.

Always keep in mind the climate so you can determine what type of elements you want to protect your roof from.

Exposure to Elements

Determine what types of elements you will be protecting your roof from.

If you live in a sunny and dry area, you might not need the same type of coating as someone who lives in a cold and rainy place.

Determine if you mostly need UV protection to protect it from constant sun exposure. Do you need to protect your roof against heavy snowfall or rainfall?

Take all of these factors into consideration.

Slope of the Roof

A flat roof and a sloped roof require different types of coatings. If you have a flat roof, the chances of it ponding water are high so you might need to protect against this.

Acrylic Roof Coatings

If you're looking for an affordable roof coating, acrylic might do the trick for you. This type of coating is water based and it's also eco-friendly.

Acrylic coatings work for all kinds of climates, so you get great value for the money.

Pro: They are reflective, which offers excellent UV protection. This material is easy to work with, especially when people want to go the DIY route.

Con: Acrylic coatings tend to lose thickness over time. You have to ensure it gets applied to climates of 50 degrees or higher. It doesn't work that well in places exposed to heavy rain.

Acrylic coatings are not as flexible as other types of coatings and they might crack with time.

If you choose this material, you want to make sure the temperature doesn't fluctuate as much. You might also want to limit foot traffic, and inspect it often for signs of ponding water after heavy rain.

With this material, you will get what you pay for.

Polyurethane Roof Coating

Polyurethane is a material that's becoming a more common coating choice. This material is flexible, which means it will resist temperature fluctuations more than acrylic coatings.

This type of coating is divided into two types: aromatic and aliphatic. The aromatic type is a lot more affordable but has poor UV resistance. You can still use aromatic coating as a base coat.

Aliphatic coatings are a bit more expensive but more durable. They provide more UV resistance, the color stays intact longer, and they remain stain-free.

Pro: Polyurethane coating is a great option when you're looking for a more durable material. It also tends to stay cleaner longer and it's resistant to water ponding.

Con: If you're looking for a more affordable coating option, this might not be the kind for you. Polyurethane tends to be a lot more expensive than an acrylic coating.

Over time the material develops a certain smell. Also, this material is not as resistant to UV exposure as other coatings.

Due to the poor UV resistance, it tends to decolor and turn yellow or chalk overtime when it gets too much sun exposure.

Silicone Roof Coatings

Out of the three coatings, silicone coats are the most flexible. They will offer the most protection against fluctuating temperatures.

Silicone is resistant to moisture and humidity and with the use of this material you won't need a primer.

Pro: Silicone coatings are a lot more resistant than other materials because it takes longer for it to weather. It's quite resistant to erosion and it won't become brittle.

Con: Silicone might be flexible but it also holds on to dirt more than the other two materials.

The rain acts as a cleaner when it gets dirt build up, but it also means it will lose its reflectivity with time.

It might be difficult to add another coat to the roof when it begins to weather because silicone doesn't adhere all that well.

You will need to remove the old coating and add an entirely new one to replace the silicone.

Which Roof Coating is Right for You?

When selecting a roof coating for your commercial building, you want to pick the right one to fit your needs. Whether it's UV resistant, water resistant or you want a more affordable solution, you have several options.

Do you need professional services for your commercial building? At PNP painting we offer a variety of services from roof coatings to floor coatings.

If you want more information on our services, please visit us for a full list.

If you want to schedule an appointment or get a quote, contact us.

The Author | Melissa Petrusse
Melissa Petrusse, President, Petrusse-Norris Painting - Licensed Painting/Decorating Contractor and Color-Expert. Please feel free to reach out to Melissa with any painting project questions, as she is happy to be of service. Simply fill out the Contact Form found on our Contact Page, as Melissa personally receives each request. View More Post from Melissa Petrusse