How to Install Three-tab Shingles Part 3 of 3

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If you want to install asphalt shingles on your roof, then you’re in good company. Asphalt shingles, also known as composition shingles, are the roofing of choice for nearly four out of five homeowners in America. They perform well in all types of climate, are available in a multitude of colors, shapes, and textures to complement every housing design, and are less expensive than most other roofing products.

 

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Overview

If you want to install asphalt shingles on your roof, then you’re in good company. Asphalt shingles, also known as composition shingles, are the roofing of choice for nearly four out of five homeowners in America. They perform well in all types of climate, are available in a multitude of colors, shapes, and textures to complement every housing design, and are less expensive than most other roofing products.
Asphalt shingles are available as either fiberglass shingles or organic shingles. Both types are made with asphalt, the difference being that one uses a fiberglass reinforcing mat, while the other uses a cellulose-fiber mat. Fiberglass shingles are lighter, thinner, and have a better fire rating. Organic shingles have a higher tear strength, are more flexible in cold climates, and are used more often in northern regions.
Although the roofing market has exploded with innovative new asphalt shingle designs, such as the architectural or laminated shingle that offers a three-dimensional look, the standard three-tab asphalt shingle is still the most common, which is the project we’re featuring here. The tabs provide an easy reference for aligning shingles for installation.
To help the job get done faster, rent an air compressor and pneumatic roofing gun. This will greatly reduce the time you spend nailing.

What You'll Need

Tools:

Aviation snips
Carpenter’s square
Chalk line
Flat bar
Roofer's hatchet or pneumatic nailer
Utility knife
Straightedge
Tape measure
Chalk gun
Flashing
Shingles
Nailing cartridges
Roofing cement
Roofing nails (7⁄8", 11⁄4")
Rubber gasket nails

Materials:

Aviation snips
Carpenter’s square
Chalk line
Flat bar
Roofer's hatchet or pneumatic nailer
Utility knife
Straightedge
Tape measure
Chalk gun
Flashing
Shingles
Nailing cartridges
Roofing cement
Roofing nails (7⁄8", 11⁄4")
Rubber gasket nails

 

Step 1

How to Install Three-tab Shingles

Cut and install top flashing (also called a saddle) around the high side of the chimney. Overlap the final piece of flashing along each side. Attach the flashing with roofing cement applied to the deck and chimney and with rubber gasket nails driven through the flashing base into the roof deck. Shingle past the chimney using roofing cement (not nails) to attach shingles over the flashing.


Step 2

How to Install Three-tab Shingles

When you reach a hip or ridge, shingle up the first side until the top of the uppermost reveal area is within 5" of the hip or ridge. Trim the shingles along the peak. Install shingles on the opposite side of the hip or ridge. Overlap the peak no more than 5".


Step 3

How to Install Three-tab Shingles

Cut three 12"-sq. cap shingles from each three-tab shingle. With the back surface facing up, cut the shingles at the tab lines. Trim the top corners of each square with an angled cut, starting just below the seal strip to avoid overlaps in the reveal area.


Step 4

How to Install Three-tab Shingles

Snap a chalk line 6" down from the ridge, parallel to the peak. Attach cap shingles, starting at one end of the ridge, aligned with the chalk line. Drive two 1 1⁄4" roofing nails per cap about 1" from each edge, just below the seal strip.


Step 5

How to Install Three-tab Shingles

Following the chalk line, install cap shingles halfway along the ridge, creating a 5" reveal for each cap. Then, starting at the opposite end, install caps over the other half of the ridge to meet the first run in the center. Cut a 5"-wide section from the reveal area of a shingle tab, and use it as a “closure cap” to cover the joint where the caps meet.


Step 6

How to Install Three-tab Shingles

Shingle the hips in the same manner using a chalk reference line and cap shingles. Start at the bottom of each hip and work to the peak. Where hips join with roof ridges, install a custom shingle cut from the center of a cap shingle. Set the cap at the end of the ridge and bend the corners so they fit over the hips. Secure each corner with a roofing nail, and cover the nail heads with roofing cement.


Step 7

How to Install Three-tab Shingles

After all shingles are installed, trim them at the valleys to create a gap that’s 3" wide at the top and widens at a rate of 1⁄8" per foot as it moves downward. Use a utility knife and straight-edge to cut the shingles, making sure not to cut through the valley flashing. At the valleys, seal the undersides and edges of shingles with roofing cement. Also cover exposed nail heads with roofing cement.


Step 8

How to Install Three-tab Shingles

Mark and trim the shingles at the rake edges of the roof. Snap a chalk line 3⁄8" from the edge to make an overhang, then trim the shingles.


 
 

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