A restoration coating can add 10 to 15 years to a commercial roof for a fraction of the cost of tearing it off. It is not the right answer for every building, though. Here is how coatings work, which roofs qualify, and what the process involves.

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Types of coatings

Silicone

Handles ponding water and UV well, which makes it a common choice for flat roofs in Texas. It can be harder to recoat later with anything other than silicone.

Acrylic

Water-based, reflective and generally less expensive. Best on roofs with good slope and drainage, since standing water breaks it down faster.

Polyurethane

Tough and impact-resistant, good for roofs with foot traffic around equipment. Often used as a base coat with a UV-stable topcoat.

Does your roof qualify?

A coating only works over a roof that is still structurally sound. Before recommending one, we check:

Moisture in the insulation. This is the deciding factor. An infrared scan or core samples show whether the insulation is wet. Coating over wet insulation seals the water in and speeds up damage to the deck.

Membrane condition. Surface weathering is fine. Widespread splits, shrinkage or blistering may not be.

Drainage. Areas that pond need attention first.

Existing system type, so the coating and primer are compatible.

If the roof does not qualify, we tell you and explain the alternatives.

How application works

Clean the roof thoroughly, usually by power washing

Repair seams, flashings, penetrations and any damaged areas

Replace any wet insulation found in the survey

Prime where the system requires it

Apply the coating in one or more coats to the specified thickness

Reinforce seams and details with fabric where needed

Work is scheduled around weather, since coatings need dry conditions and the right temperatures to cure.

Keeping it working

Inspect twice a year and after major storms

Keep drains and scuppers clear

Limit foot traffic, and use walk pads around equipment

Repair punctures promptly

Recoat at the end of the coating's service life, which is usually far cheaper than a tear-off

Is it right for your building?

Coatings make the most sense on a sound roof that is showing its age. Call (855) 741-ROOF to set up a moisture survey and a straight recommendation.

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Extending a Commercial Roof's Life With Coatings