Psf Of A Cool Roof

Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles.

Psf of a cool roof.

The thermal emittance rating represents cooling efficiency via thermal radiation. Ddc cool green roofing manual ddc preface 1 1 preface nyc department of design and construction in recent years there has been great interest in the potential of two roofing strategies cool or light colored roofs and green or planted roofs to reduce the energy consumed by individual buildings. Rebate levels the base rebate for qualifying roofs is 0 20 per square foot the enhanced rebate is 0 30 per square foot roofing products must be tested and labeled by the cool roof rating council. Although costs will vary greatly depending on location and local circumstances cool roof coatings on a low slope roof might cost 0 75 1 50 per square foot while single ply cool roof membrane costs vary from 1 50 3 00 per square foot.

A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning. Light colored roofs reflect between 55 and 90 percent of sunlight reaching the roof surface giving them solar reflectance ratings between 0 55 and 0 90. The average cost to seal a roof is 1 072 and typically ranges between 403 and 1 760 however you may pay as little as 100 or as much as 3 200 or more that s a total average of 0 65 to 5 per square foot the type of roof type of sealant used the condition of your current roof and your location all affect price. The solar reflectance rating represents the fraction of sunlight reflected by the roof.

Pacific gas and electric. The cost premium for cool roofs versus conventional roofing materials ranges from zero to 5 or 10.