Sri Roofing Materials
It stands for solar reflectance index which is a combination of two numbers a material s emissivity a measure of how effectively it rejects heat and reflectivity how much light energy it bounces back.
Sri roofing materials. Sri lanka s marketplace for roofing materials is here to help you choose the best roofing products suppliers and brands for any construction site. Hotline 077 255 0770 office hours weekdays 9 00am to 5 00pm saturdays 9 00am to 1 00pm head office no 752 baseline road colombo 09. Cool metal roof colors are optimal for reducing energy consumption particularly where cooling loads dominate. Berridge s kynar 500 hylar 5000.
Emissivity is a material s ability to release absorbed energy. It ranges from 0 to 100. So just what is sri. Requirements and is calculated according to astm e 1980 using values for reflectance and emissivity.
The solar reflectance index is used for compliance with leed. 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. Cool roofing products are classified in many cases by their solar reflectance index sri.