The 3 tab asphalt shingle also called a composition shingle or fiberglass shingle is the most common type of roofing shingle.
Roof shingle pattern.
In most cases 4 nails are adequate.
Pattern curling is caused by the roofer having to lift the end tab of every other shingle to install the last shingle nail at the end of the next shingle.
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Most shingles require four to six nails about 1 in.
By the shingle above them.
Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.
Also different architectural styles will use the same type of roof.
Racking shingles sometimes also may create a condition called pattern curling where the shingles curl and blow in the wind at the places where the racked columns join because of lifting the end of a shingle to place the next shingle and lifting the end high enough to nail the next shingle underneath each of the overlapping shingles.
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Other composition shingles such as architectural and random cutouts are installed using most of the same techniques.
Three tab shingles are still widely available and used.
The pitch of your roof and the wind conditions in your area also affect how many nails to use and where.
Because the bending can stress and deform shingles especially in cold weather the ends of those shingles may warp over time creating a prominent pattern on the roof.
Every shingle brand has its own nailing pattern requirement.
Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific.
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For decades the three tab strip shingle dominated the roofing industry with the characteristic geometric brickwork pattern it created on the roof.
Check with your roofing dealer to learn about any installation differences.
Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss.
Per bundle 30 pieces by gaf 1 61 42 bundle.
In from each side and placed so they get covered at least 1 in.