Individual overlapping pieces — usually asphalt, wood, or slate — installed in rows from the bottom to the top of a sloped roof.
A roof covering unit applied in overlapping courses from eave to ridge to shed water, manufactured from asphalt fiberglass, wood (cedar or redwood), slate, concrete, or clay tile. Asphalt shingles are by far the most common residential roofing material in the US, available in 3-tab and architectural (dimensional or laminate) styles. Shingle selection affects appearance, wind resistance, lifespan, and cost.
Class 4 impact-resistant architectural shingles qualified the homeowner for a 30% reduction in hail damage insurance premiums.
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