Cool roofing products are classified in many cases by their solar reflectance index sri.
Cool roof rating council sri.
The purpose of the ecrc product rating program is to provide a uniform and credible system for rating and reporting the radiative properties of roofing materials.
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Leed is a building rating system available for nearly all building and home projects that provides the framework for businesses contractors and property owners to follow to be recognized as sustainable.
Minimum sri for cool roof materials in leed v4.
For an asphalt roofing shingle to be classified as a cool under the energy codes it needs to have a cool roof rating council crrc rating for thermal emittance and solar reflectance.
Sri values are used in determining if a building material is leed compliant.
Cool roof is the answer to reduce our global carbon emissions cool roofs allow building owners architects civil engineers energy consultants and policy makers to optimise the energy and environmental performance of a single building or an urban environment depending on the use design environment and the surrounding climate.
Sri as a method for reporting cool roof data will probably take a little while to catch on.
To help consumers compare the cool aspects of roof materials and coatings the cool roof rating council crrc manages a system for independently evaluating and documenting their.
Green rating for integrated habitat assessment.
We ve all been hearing more and more about cool roofing and rightly so this is a technology that according to the cool roof rating council can reduce utility costs by 7 15 as well as help reduce air temperatures in densely populated areas.
It also must meet the specific solar reflectance thermal emittance and or solar reflectance index values defined by the specific energy code.
The solar reflectance and the infrared emittance of roofing products.
For exampleii a clean black roof could have an sri of 0 while a clean white roof could have an sri of 100.
Griha council is an independent platform registered as a society for the interaction on scientific and administrative issues.
Dark roofs usually have an sri less than 20.
Cool roof sri tiles.