Roof Pond Meaning

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.

Roof pond meaning.

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. To form ponds or large puddles. 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. Roof ponds provide cooling benefits through indirect evaporative cooling and or radiant cooling 19 22 23 24 25 26.

Roof ponds are an example of this strategy. Ponding water accelerates the deterioration of many materials including seam adhesives in single ply roof systems steel equipment supports and particularly roofing asphalt. 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. Well it s not as fun as it sounds.

A still body of water smaller than a lake. Flat roofs are inherently bad at draining water unlike sloped roofs. 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. When drainage fails water will run to low points in a flat roof.

Roof ponds with wet gunny bags shaded roof ponds ventilated roof ponds and roof ponds with movable insulation proved to be more effective relative to other variants of roof pond cooling systems. Ponding is the unwanted pooling of water typically on a flat roof or roadway. What causes roof ponding. The roof pond design became popular with the development of the sky thermal system designed by harold hay in 1977.

Ponding synonyms ponding pronunciation ponding translation english dictionary definition of ponding. Debris blocked the culvert and the. Pond ed pond ing ponds v.