Flat roof coatings will cost between 0 15 to 2 00 per square foot for materials and an additional 0 50 to 3 00 per square foot for labor as broken down in the cost per square foot section above.
Psf of a cool roof.
Pacific gas and electric.
Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles.
A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning.
Roof temperature is rated via solar reflectance and thermal emittance with ratings ranging between 0 and 1.
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.
This results in lower absorption of solar heat and a cooler roof.
The cost premium for cool roofs versus conventional roofing materials ranges from zero to 5 or 10.
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.
Ladwp s cool roof rebates are available to single family and multi family residential customers and are part of the consumer rebate program.
Standard or dark roofs can reach temperatures of 150 f or more in the summer sun.
Whereas darker traditional roofing materials absorb sunlight the reflective surfaces of a cool roof reflect it away.