Roof Pond Meaning

Ponding water accelerates the deterioration of many materials including seam adhesives in single ply roof systems steel equipment supports and particularly roofing asphalt.

Roof pond meaning.

Ponding is the unwanted pooling of water typically on a flat roof or roadway. The roof pond design became popular with the development of the sky thermal system designed by harold hay in 1977. 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. What causes roof ponding.

Flat roofs are inherently bad at draining water unlike sloped roofs. 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. To form ponds or large puddles.

Pond ed pond ing ponds v. There are various designs and configurations for the roof pond system but the concept is the same for all designs. 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. 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.

Roof pond a pond of water on a roof structure that cools a building by evaporation. Well it s not as fun as it sounds. Ponding synonyms ponding pronunciation ponding translation english dictionary definition of ponding. So what is roof ponding.

When drainage fails water will run to low points in a flat roof. Roof ponds are an example of this strategy. Debris blocked the culvert and the.