Berridge s kynar 500 hylar 5000.
Sri roofing materials.
Emissivity is a material s ability to release absorbed energy.
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Cool roofing products are classified in many cases by their solar reflectance index sri.
The solar reflectance index or sri is a calculation using the aged solar reflectance and thermal emittance measurements of the asphalt shingles materials.
Berridge metal roofing is cool and sustainable.
To meet leed requirements a roofing material must have a sri of 29 or higher for steep slope 2 12 roofing and a sri value of 78 or higher for low slope roofing.
The solar reflectance index is used for compliance with leed.
This measurement can be used as an indicator of how hot shingles are likely to become when they re exposed to the sun.
Sri lanka s marketplace for roofing materials is here to help you choose the best roofing products suppliers and brands for any construction site.
So just what is sri.
The high reflectivity emissivity and solar reflectance index sri of berridge metal roofing helps mitigate the heat island effect.
Requirements and is calculated according to astm e 1980 using values for reflectance and emissivity.