Elastomeric coatings: a shield for your building

Elastomeric coatings are a liquid-applied layer for commercial roofing. They can repair and shield your roof from leaks and energy waste. We will help you understand elastomeric coatings, their applications, and maintenance and cost considerations.

Understanding elastomeric coatings

Elastomeric coatings are usually made from acrylic or silicone and become highly elastic membranes after drying.

The two types of elastomeric coatings are:

• Water-based: Best used on metal or spray foam roofs that don’t have ponding water
• Solvent-based: Best used on low slope or flat roofs and have a better ponding water resistance

The advantages of elastomeric coatings are that they provide a watertight layer that expands and contracts with the roofing material and temperature.

Application of elastomeric coatings

Elastomeric coatings need a clean surface to adhere to. Remove debris, dust, or oils from the surface with a broom, vacuum, or high-pressure water. You can use tape to test cleanliness by placing a piece on the surface and seeing if any contaminants adhere to it.

It is best to apply elastomeric coatings with an airless spray. You can also use a brush or roller, but they require more than one coat.

Elastomeric coatings are compatible with metal, concrete, bitumen, modified bitumen, EPDM, and PUF roofs.

Maintenance and cost considerations

You can clean your elastomeric coating with a light-pressure wash for yearly maintenance. Elastomeric coatings are initially more expensive than other roof coatings but save you money over time because of fewer repairs and energy efficiency (with up to 20% reduced air conditioning costs).

Exposure to the elements deteriorates your commercial roof. Elastomeric coatings are some of the certified waterproofing and sealing techniques we provide for your commercial buildings. Please contact us if you have questions about elastomeric coatings, need repairs, or want more protection for your commercial roof.