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Roof shingles highly visible and so are an important aspect of your home’s aesthetics. Shingle roofs are typically installed from the bottom up, beginning with a starter course and the edge seams staggered to avoid leaks.
Many shingle installations benefit from being placed on top of an underlayment material such as felt paper to prevent leaks even from wind driven rain and snow and ice dams in cold climates. At the ridge the shingles on
one side of the roof simply extend past the ridge. An asphalt shingle roof has flexible asphalt shingles for the ridge cap. Some roof shingles are non-combustable or have a better fire rating than others. Due to increased
fire hazard, wood shingles and organic-based asphalt shingles have become less common than fiberglass-based asphalt shingles. No shingles are water-tight so the minimum recommended roof pitch is 4:12 without additional underlayment materials.
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