Landmark Solaris® PLATINUM Algae-Resistant Shingle from CertainTeed Roofing is a brilliant energy-saving breakthrough that puts cool roof technology to work. Landmark Solaris is a steep-slope, solar reflective asphalt roofing shingle which contains advanced colored granules that can reflect solar energy and radiate heat far better than traditional roofing shingles, reducing your roof's temperature in the summer. With Landmark Solaris PLATINUM, you get a fresh, bright color palette but with an industry-leading solar reflectance value of over 40%. Blending ecological technology and innovative performance, Landmark Solaris roofing is more durable than traditional shingles. The reflective technology reduces "thermal shock," the expansion and contraction of exterior building materials. These shingles resist the growth the algae, especially in damp regions.