White Waterproofing Membrane on a Roof with a Solar Heater

1. Grinding

The old, worn surface is ground back. Loose material comes off and leaves a clean base for the membrane to bond to.

2. Around the solar heater frame

The preparation also covers the ground between the legs of the frame, which is hard to reach but often where water pools.

3. Primer

The primerPrimerThe thin first coat that goes on before the main material. It binds dust, seals the pores and helps paint or waterproofing stick firmly. binds the remaining dust and helps the membrane stick firmly to the concrete.

4. Low walls first

The white membraneLiquid waterproofing membraneA waterproofing product applied as a liquid by roller, brush or spray. Once dry it forms one continuous, flexible membrane with no seams. goes on 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 corners first, since they are the most sensitive spots.

5. The result

The whole roof gets one continuous white layer, even under the solar heater frame. 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. and keeps the home below cooler.