What color metal roof reflects the most heat?

What color metal roof reflects the most heat?

White and Light Colors White is the most reflective color, and white metal roofing can actually lower the ambient temperature in the home by reflecting more of the sun’s rays into the environment.

What color roof is best for reflecting heat?

White or light-colored roofs reflect heat rays from the sun, keeping the attic and rooms below it cool during warm weather. As a result, the building’s cooling load decreases, helping home and business owners stay comfortable and save money on their energy bills.

What is the solar reflectance of a metal roof?

(0-100%)
Defining Cool Roofing The term “Solar Reflectance” is a measure of the amount of that solar energy that is immediately reflected from the surface. It is not reflected heat, but reflected electromagnetic energy from the sun. Solar reflectance is reported as a decimal (0 – 1.00) or as a percentage (0-100%).

Does color matter on metal roof?

Metal roofing in a lighter color will reflect the heat of the sun much better than a darker colored metal roof. Lighter colored roofs will help safeguard your roof from intense heat. In fact, a lighter colored roof can decrease your energy bill.

What color metal roof is the coolest?

Energy Efficiency Compared to dark colors, light colors such as white, light bronze, beige and peach are better at reflecting the sun’s heat rather than absorbing it into the building. These light colors are often referred to as cool metal roofing colors.

What is the most energy-efficient metal roof color?

The most energy-efficient metal roof color is anything in a light shade. Lighter colored metal roofs reflect more heat than darker colored metal roofs, reducing your energy costs in warmer months.

How is Sri value calculated?

How to use the SRI calculator?

1. Solar reflectance: the range of solar reflectance is 0 – 1, with 0 for perfect black material and 1 for perfect white. If you know your material’s solar reflectance in percentage, simply convert it to decimal (e.g. 56.7% = 0.567).
2. Emittance: it is often called emissivity.