You'll usually pay an additional $1.00-$2.00 per square foot since the coatings must be applied in multiple thin layers.Īsphalt Roll: For small leaks and tears, elastomeric bitumen sealants run between $15 to $20 per gallon or about $6 to $10 per 10-ounce tube. Metal: such as in residential settings, can use an elastomeric coating for corrosion resistance or just to extend the life of the roof. However, there are some exceptions and considerations when dealing with a pitched roof. Most pitched roofs are asphalt shingle or tile where complete coatings are not recommended. This price is for a coating over a pre-existing roof system, such as a rubber membrane or metal roof. Flat Roof Coatingįlat roof coatings will cost between $0.15 to $2.00 per square foot for materials and an additional $0.50 to $3.00 per square foot for labor as broken down in the cost per square foot section above. Pitched roofs should use tiles or shingles where no coating is necessary. The Roof Coatings Manufacturers Association, along with many contractors, recommend coatings for flat and low sloped roofs.
However, it often only needs a single coat. EPDM is generally thicker than other types of roofing and cost about twice as much at $1.50 to $2.50 per square foot. Use it on almost any roofing type with the right primer. Liquid EPDM creates a monolithic roofing system as opposed to EPDM sheets that create seams. Excellent for DIY applications and short-term coating and sealing needs. However, it has a higher failure rate than any other type and will need a new coat every ten years, if not sooner. AcrylicĪcrylic is the cheapest at $0.15 to $0.75 per square foot, and the most popular elastomeric coating. It's also the most durable, suitable for high-traffic areas.
It has the best insulating properties of all roof coatings. Polyurea (Polyurethane)Ī relatively new roof coating, polyurea requires a primer and two coats and costs $0.50 to $2 per square foot. It's not used as a complete roof coating and not often used on any complete roofing membranes besides a Built-Up Roof or Modified Bitumen Roofing. It's an asphalt-based sealant used around flashing, skylights and chimneys on asphalt roofs. Bitumenīitumen costs $0.75 to $1.50 per square foot. However, it loses its UV rating faster than most other types. If installing this yourself, be sure to use fabric or fibered reinforcement sheets.
It is used as the covering for spray polyurethane foam (SPF) roofing systems.
#COOL SEAL FOR ROOFS FULL#
It's sold as a full roof coating that often doesn't require a primer. Of all the roof coatings, silicone provides excellent durability and long-lasting weatherproofing for a price between $4 and $1.50 per square foot. Corrosion and chemical protection sealants are also available. Some include white and reflective surfaces to reduce cooling costs while others are clear. Most promise waterproofing and extended roof life (if sealing an existing roof) and better fire resistance. There are many different types of roofing sealant, each with pros and cons. Find hiring guides, material costs, expert advice, how-to's and more.
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