Metal Roof Repair

A metal roof coating can extend the life of your roof by 10 or more years.

Why Consider a Metal Roof Coating Application?

Metal roof leaks are difficult to locate. Roof leaks can come from seams, fasteners, flashings and penetrations. It does not matter if the roof is nearly flat or pitched, old or new. It will leak.

Roof replacement is very disruptive to your operations.

BEFORE: This metal roof was built in the 1970’s and has survived numerous typhoons. It has lots of leaks and is completely rusted. Roof replacement was already scheduled when the building manager suggested an elastomeric roof coating system to restore the roof.

Metal Roof Restoration Process

Cleaning and Surface Preparation

The entire metal roof was thoroughly washed using a 3,000 psi pressure washer. A biodegradeable degreaser was used to ensure a clean surface. All seams, flashings and penetrations were carefully sealed to render the roof watertight.

Priming

Priming ensures a good adhesion between the metal roof surface and the elastomeric coating. We have primers for rusted metal roofs.

Top Coating

30 dry mils of elastomeric roof coating is applied on the entire metal roof in 2 coats.

AFTER: The metal roof coating job added 10 years to the life of this roof. The seamless membrane solved the leaks and there was a noticeable temperature reduction in the building. The owner was very pleased that he had the warehouse behind it coated with elastomeric roof coatings as well.

All these benefits for about half the cost of replacement. What more can you ask for?

Don’t Put It Off Any Longer.
Get a FREE Roofing Estimate today!

Types of Metal Roofs

• Corrugated
• Metal Tile
• Standing Seam

Roof Restoration Tools

Pressure Washer

A pressure washer is mandatory for preparing a roof’s surface for coating application. Pressure washing removes embedded dirt, chalking and poorly adhered material. In most cases, 2000 PSI can adequately clean the surface without damaging adhered roofing laps, masonry or flashings. Higher pressure ratings can speed up cleaning provided that a wider nozzle is used to prevent damage to the existing substrate.

Clear-rinsing detergents may be used to improve cleaning. Be aware of any local restrictions regarding how the wash-off water must be treated or released into storm sewers or swales.

Airless Sprayer

An airless sprayer pump capable of developing 1,800 to 2,500 PSI material output pressure should be sufficient to spray a variety of acrylic coatings. A siphon hose on the material inlet typically is used to draw material directly from 5-gallon pails or 55-gallon barrels.

A spray gun with an extender wand allows for comfortable coating application without having to hold the spray gun uncomfortably close to the surface. A 517 tip is usually recommended for roof primers and 631 for elastomeric coatings. Tips are reversible for easy cleaning and clearing of occasional tip clogs.

Proper spray technique involves keeping a gun level with a roof’s surface at all times, maintaining a consistent distance between the spray tip and surface. Use a overlapping, crosshatch pattern to ensure complete coverage and a uniform finish.