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Blancing asthetics and energy efficiency, what would be your choice?
80% Reflective, bright white elastometric (plasticy) covering on very smooth surface. Very expensive.
60% Reflective, bright white elastometric coating over normal shingles. More expensive.
35% Reflective, premium bright white shingles. Expensive.
27% Reflective, (pictured) grey energy efficient shiingles. A bit less expensive.
18-33% Dark Red tiles (common in California, but efficient ones are more expensive and not commonly used)
5-1% Reflective, black shingles