Bare Roof Sprayed with Foam and Coated White

1. A bare slab

A roof of bare concrete, with no protection from sun or rain.

2. The low walls

The low wallsParapetThe low wall around the edge of a flat roof or balcony. The joint between it and the floor is one of the most common places for leaks. around the edge will be covered too, so the joint with the floor is not left open.

3. The foam

The whole surface is sprayed with polyurethane foamSpray polyurethane foamA foam sprayed on as a liquid that expands on the spot and sets into one seamless layer. It insulates against heat and cold and closes cracks and joints., which forms one continuous insulatingThermal insulationA layer of material that lets heat through only slowly, so a home keeps its warmth in winter and stays cool in summer. layer with no joints.

4. Up the low walls

The foam runs up the low walls and over their tops.

5. White protection

The foam must not be left exposed to the sun, so a white protective coating is rolled over it.

6. Across the whole surface

The coating works its way across the whole roof, so no spot is left uncovered.

7. A fresh coat

Freshly applied, the coating shines in the sun.

8. The result

One continuous white roof. The foam insulates and the white reflects the sunCool roof coatingA white or very light top coat that reflects much of the sun's radiation, so the roof and the floor below heat up less., so the rooms below stay cooler.