“It gets hot here in summer, I don’t want dark shingles on my house to make my electricity bill increase.”
One of the most common misconceptions for homeowners is the extent that shingle color affects insulation. Does shingle color affect temperature and insulation? The answer: not nearly as much as you think it does.
Darker shingles do absorb more heat, this is true. In summer a darker roof will measure hotter than a roof with lighter color shingles. However, if you stuck a thermometer to both of those roofs in the middle of a South Carolina summer, they would both exceed temperatures of 120 – 140 degrees. It’s hot. No shingle in 90 degree weather is going to be “cool,” regardless of it’s color.
The same rule is true in winter, just with the reverse of the colors. Though black and dark grey shingles will absorb more light in winter, therefore being a little warmer, it’s not enough to affect insulation. If the weather is calling for frost or snow, all roofs will ice and all attics will be filled with cold air.
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