Photo gallery

Leonard and his wife, Kay, in Hawaii

When a coating is light in color, it also can provide a cooling effect to a roof surface.

Photo courtesy of ERSystems Inc., Rockford, Minn.

A field adhesion test, demonstrated in the photo, will help ensure a successful coating application.

Photo courtesy of ERSystems Inc., Rockford, Minn.

For proper adhesion, a roof substrate must be cleaned and prepared satisfactorily; most roof surfaces are best cleaned by power washing.

Photo courtesy of ERSystems Inc., Rockford, Minn.

It has become widely accepted in the roofing industry that field-applied white reflective coatings can lower roof surface temperature and provide energy savings.

Photo courtesy of ERSystems Inc., Rockford, Minn.

Both grayscale and monochromatic color images commonly are used on roof system inspections.

A thermal image of a rooftop inspection shows two people marking the areas of wet insulation, which appear lighter.

Atlas Spaceflight Operations Center at Cape Canaveral Air Foce Station, Cape Canaveral, Fla.

Photo courtesy of Pacific Tech Construction, Longview, Wash

Roofing workers cut the existing 2-inch-thick gypsum deck. Two to four saws ran continuously during this process.

Photo courtesy of Pacific Tech Construction, Longview, Wash.