Roof Pond Meaning

When drainage fails water will run to low points in a flat roof.

Roof pond meaning.

On low slope asphalt roofs ponding water allows the oil solvent components of the asphalt to leach out and evaporate leaving the roof membrane brittle and susceptible to cracking and leaking in the ponding location. Pond ed pond ing ponds v. Flat roofs are inherently bad at draining water unlike sloped roofs. The water will then sit and create a pond the longer water sits on a roof the more likely it is to cause damage over time.

The roof pond design became popular with the development of the sky thermal system designed by harold hay in 1977. Well it s not as fun as it sounds. Ponding synonyms ponding pronunciation ponding translation english dictionary definition of ponding. What causes roof ponding.

Comparing performance relative to other passive strategies showed that in many cases roof pond cooling systems are about equally effective in maintaining indoor thermal comfort. Debris blocked the culvert and the. There are various designs and configurations for the roof pond system but the concept is the same for all designs. Roof ponds are an example of this strategy.

To form ponds or large puddles. A still body of water smaller than a lake. Roof ponds provide cooling benefits through indirect evaporative cooling and or radiant cooling 19 22 23 24 25 26. In both processes the roof acts as a heat exchanging element which is cooled by evaporation on its surface longwave radiation to the sky 1 or both.

Roof pond a pond of water on a roof structure that cools a building by evaporation. Ponding water accelerates the deterioration of many materials including seam adhesives in single ply roof systems steel equipment supports and particularly roofing asphalt. Because the water increases the thermal mass of the building it also increases the gain in solar energy storing the absorbed energy during the day when it is abundant for later use.