What Is the Best Metal Roof Coat for Your Commercial Building?

Metal roofs are a great and popular choice for commercial buildings, as they’re a durable yet affordable option for many. Typically, a metal roof can last anywhere from 10 to 40 years, but over time, it can rust, corrode, or have other issues that can lead to leaks and expensive repairs. Your commercial roof’s lifespan depends mostly on how well you maintain it and what sort of challenges occur in your local climate.

The good news is there is a much more affordable way to extend your roof’s longevity. We’re talking about metal roof coatings, of course, and in this article, we’ll help you find the best metal roof coat for your commercial building. Knowing how to choose the best metal roof coating can save you literally thousands of dollars!

Why Should You Use A Roof Coating?

If you want to extend the lifespan of your roof but don’t have the budget to undertake extensive repairs, applying a high-quality coating may be the solution for you. Coatings create a seamless membrane that protects your roof against the damaging effects of UV rays, rain, and other environmental factors. By coating your metal roof, you can increase its longevity by up to 25%. Additionally, coatings give your roof a fresh and clean appearance, making your building look attractive and new. A reflective roof can also help maintain a comfortable temperature inside your building, reducing your cooling expenses during the summer and saving you money.

Types of Roof Coating

First things first, you need to decide between the coating options available on the market. The right choice for your commercial roof isn’t just about how your roof will look; the right coating could ultimately impact your roof’s longevity and durability.

The choice may not be that simple. There are a few factors you may need to keep in mind while making your decision, and the most important ones are the climate, your budget, and the installation process.

Regarding the climate, consider the challenges your roof has to endure throughout the year. Is it raining often? Does the temperature get extreme, whether it gets too hot or too cold?

While your budget may dictate a lot of your decisions, and even if your first instinct is to go with the cheapest option, investing in a premium coating may save you money in the long run.

You also need to consider the installation process. Who will do the installation? Will you try to do it yourself, or will you hire a professional? Our advice is to always go with the latter.

Here are some popular types of roof coatings for metal roofs and their main characteristics:

Elastomeric coatings are highly moisture-resistant and durable. They’re also one of the most inexpensive and easiest ones to apply.

Acrylic coatings are water-based and known for their affordability and ease of application. They offer good UV resistance and are environmentally friendly. However, they may not be the best choice for areas with extreme weather conditions, because they can lose elasticity in low temperatures and are less water-resistant than other types.

Asphalt coatings are durable, but they contain asbestos which makes them less environmentally friendly. They also don’t offer as much UV resistance as other types.

Silicone coatings are moisture-, UV-, and temperature-resistant, but they’re on the more expensive side.

Polyurethane coatings are impact-, UV-, and dirt-resistant, making them ideal for flat roofs with heavy foot traffic.