Sri Roofing Materials

This measurement can be used as an indicator of how hot shingles are likely to become when they re exposed to the sun.

Sri roofing materials.

It ranges from 0 to 100. The solar reflectance index or sri is a calculation using the aged solar reflectance and thermal emittance measurements of the asphalt shingles materials. Cool metal roof colors are optimal for reducing energy consumption particularly where cooling loads dominate. 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.

The high reflectivity emissivity and solar reflectance index sri of berridge metal roofing helps mitigate the heat island effect. Cool roofing products are classified in many cases by their solar reflectance index sri. Berridge metal roofing is cool and sustainable. The solar reflectance index is used for compliance with leed.

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. 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. Requirements and is calculated according to astm e 1980 using values for reflectance and emissivity.