There are four basic patterns to laying out three tab shingles.
Why are shingled offsets on a roof important.
However occasionally due to minor unavoidable dimensional variations in the shingles or vagaries in the roof deck s squareness the cut out.
Three tab shingles are most typically installed with a half tab offset that yields the characteristic brickwork appearance.
This is also the reason why older shingles with fewer granules tend to look drab and lacking.
Many pros shingle in a vertical line up the roof because it s much faster.
Although many customers prefer to see the cutouts aligned on the roof this directs runoff into channels that erode the shingle surface.
The 5 inch offset pattern provides the best all around.
Shingles are laid in courses usually with each shingle offset from its neighbors.
When considering using offset patterns less than 4.
Some fiberglass shingles to lift from the roof plane.
Straight up method a half pattern b 4 inch offset c and 5 inch offset d.
Without the granules asphalt shingles would have that plain flat look.
The first course is the starter course and the last being a ridge course or ridge slates.
The granules while still embedded to the shingles create a distinct texture that enhances the overall look of the roof s surface.
The cut outs separating the shingle tabs line up every other course.
A note about other offsets less than 4 inches.
Shingle is a corruption of german schindle schindel meaning a roofing slate.