Renewing the White Waterproofing on a Roof with Vent Pipes

1. The worn coating

The old white coatingElastomeric waterproof coatingA thick, rubbery waterproof paint for flat roofs, parapets and roofs. It stretches without cracking as the building expands and bridges hairline cracks. had turned grey and worn through in many places, especially where water used to sit.

2. Washing and a first coat

The surface is washed to get rid of dust and dirt. The bases of the vent pipes and posts are coated first, because joints open up easily there.

3. New waterproofing

The white waterproofingLiquid waterproofing membraneA waterproofing product applied as a liquid by roller, brush or spray. Once dry it forms one continuous, flexible membrane with no seams. is spread over the whole surface and wraps around every pipe coming out of the roof.

4. Second coat

The second coat builds up the final thickness and covers the spots that still looked worn.

5. The low walls

The waterproofingWaterproofingThe work and materials that stop water getting through on flat roofs, balconies, bathrooms, basements, planters and tanks. goes up 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. and over their tops, so water can't get in at the edges.

6. The result

A clean white surface that keeps the rain out and 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 space below heats up less.