Photo
Caption
Berkeley Lab Heat Island Group chemist Mohamad Sleiman prepares to insert clean and soiled roofing specimens into a weatherometer. The weatherometer simulates exposure to heat, moisture, and UV radiation.
Credit
Heat Island Group, Lawrence Berkeley National Laboratory
Photo
Caption
Berkeley Lab Heat Island Group chemist Mohamad Sleiman configures a weatherometer to simulate the effects of heat, moisture, and UV radiation on roofing materials.
Credit
Heat Island Group, Lawrence Berkeley National Laboratory
Photo
Caption
Berkeley Lab Heat Island Group chemist Mohamad Sleiman prepares to insert clean and soiled roofing specimens into a weatherometer. The weatherometer simulates exposure to heat, moisture, and UV radiation.
Credit
Heat Island Group, Lawrence Berkeley National Laboratory
Berkeley Lab Heat Island Group chemist Mohamad Sleiman prepares to insert clean and soiled roofing specimens into a weatherometer. The weatherometer simulates exposure to heat, moisture, and UV radiation.
Heat Island Group, Lawrence Berkeley National Laboratory
August 2, 2025