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What Is The Best Waterproofing For A Low Slope Roof?

By August 24, 2020 September 25th, 2020 No Comments
What Is The Best Waterproofing For A Low Slope Roof?

When it comes to protecting your commercial roof, the roof substrate is almost as important as the roof itself. Low slope roofs have many advantages, but they also require some extra care and attention.

Therefore, when it is time to extend the life of your existing roof, it’s important to consider the type of roof coating which best suits the needs of your roof. Different coatings have their pros and cons in terms of waterproofing, protection from harsh weather, and controlling heat loss. One size does not fit all; and yet, the right coating can greatly extend the lifespan of your roof. 

Roof Waterproofing Considerations

Here in the Dallas area, roofs are exposed to a wide range of conditions. From high winds and heavy rains to intense sunlight and scorching heat, your roof has to withstand it all. Generally speaking, these are the factors you should be considering before you choose a roof coating material:

  • Overall cost
  • Ease of installation
  • Lifespan and warranty
  • Maintenance requirements

It also helps if your roof is energy-efficient and able to deflect harmful UV rays.

With proper care and maintenance, any roof coating can extend the lifespan of your roof. Plus, depending on the coating you choose, you can get a warranty that lasts anywhere from 5 to 20 years. 

Waterproofing Products for Flat Roofs

Every coating is different so there isn’t a simple answer to which one is the best waterproofing for a low slope roof. Many roof coatings are available in either solvent-based or water-based materials. Solvent-based coatings are typically longer lasting. Water-based coatings are generally more affordable and emit fewer odors. The “best” coating depends on a variety of considerations including your needs and priorities. 

Silicone Coatings

One of the key benefits of silicone roof coatings is their ability to defend against leaks. Silicone coatings are popular in areas with a lot of rain because they do a great job keeping roofs watertight. They also reflect ultraviolet rays effectively to keep your building cooler and reduce air conditioning costs. The only real downside if silicone roof coatings is they tend to cost more than other materials. 

Acrylic Coatings

You can choose between acrylic coatings in both solvent and water-based formulas. The quality of the coating depends on the formula used. The choice between formulas depends on the type of roof, adhesion, and temperature changes, among others. Be sure to talk to your roofing professional about the right formula for your roof. Overall, acrylic coatings are budget-friendly, have good weathering properties, and effectively reflect away UV rays.

Polyurethane Coatings

Polyurethane coatings are solvent-based and come in two basic types: aliphatic and aromatic (aromatic is less UV stable than aliphatic). One of the greatest assets of a polyurethane coating is high abrasion resistance. This makes it a preferred roof coating on roofs where there is likely to be high foot traffic, and in parts of the country which regularly experience hail storms.

Bitumen Based Coatings

Available in both water-based and solvent-based variations, bitumen roof coatings are among the most inexpensive options. In addition to being budget-friendly, they are compatible with a wide range of roofing materials. This makes them applicable to almost any roof. Bitumen based coatings are fairly durable. However, due to its dark color, bitumen coatings may have a negative impact on energy efficiency. 

Asphalt Coatings

Asphalt roof coatings come in two types: aluminized or black emulsion. In addition to being reflective and UV-stable, and offering good weather adaptability, they work well on both bitumen and asphalt-based roofs. Asphalt roof coatings are among the most affordable roof coatings and are popular among business owners who need a commercial roof on a tight budget. Keep in mind they are perhaps not quite as long-lasting as some other types, 

Understanding Your Low Slope Roofing Needs

At the end of the day, the right waterproof coating for your roof comes down to your needs. Every situation is unique, which is why it’s so important to work with a roofing team who has your best interests at heart. Choosing a roof coating depends on your priorities, which might be restoring or repairing your roof, saving energy, reflecting UV rays, or making your new roof last longer. 

Consider the coating with the best properties based on the main problem with your roof. If you’re still unsure what is the best waterproofing for a low-slope roof, consult with a professional who can evaluate your current roof and make a recommendation based on its condition. 

At KPost Roofing & Waterproofing, we’re committed to helping you make the right choices for your specific roofing needs. Contact us today to learn more about working with our team of commercial roof experts in Dallas, TX.