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.

Roof pond meaning.

Ponding is the unwanted pooling of water typically on a flat roof or roadway. Debris blocked the culvert and the. When drainage fails water will run to low points in a flat roof. Pond ed pond ing ponds v.

Ponding synonyms ponding pronunciation ponding translation english dictionary definition of ponding. 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. Flat roofs are inherently bad at draining water unlike sloped roofs. So what is 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. 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. 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. What causes roof ponding. 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. Roof pond a pond of water on a roof structure that cools a building by evaporation.

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. 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.