Capping a roof is the last thing done during a roofing project.
How to shingle peak roof.
The cap must be positioned to minimize wind and weather damage after it has been nailed down.
Known in the trade as vertical racking or staggering this how to lay shingles method enables the roofer to install a single column of shingles all the way to the peak without the wasted back and forth motion necessary to fill several rows of stair steps.
Place the second step flashing piece over the end shingle in the first course by positioning it 143 mm 5 5 8 above the bottom edge of the exposed asphalt shingle.
Secure the horizontal flange to the roof.
Many pros shingle in a vertical line up the roof because it s much faster.
This picture gives you an idea of the condition of the existing roof plywood and you.
Cover your roof with felt paper and overlap the ridges at the peak.
Install the drip edge.
Install the self stick underlayment.
You can either use special shingles called ridge shingles or cut a number of regular shingles into 3 tabbed equal pieces and bend each so they fit snugly on the roof peak and nail them into place.
Positioning of the cap.
Remove existing roof and underlayment.
It must be completed at the very end.
The original plan was to preserve a portion of the existing roof since.
Cut and bend a shingle to conform to the shape of the peak of the roof.
Hammer a roofing nail on each side of the shingle five inches from the bottom edges and one inch from the side edge.
Secure the last ridge cap shingle with four nails at the corners of the shingle and cover the nail heads with roofing cement.
Strip off old shingles.
Lay the last ridge cap shingle in the center of the shed roof on top of the exposed adhesive portions of the two center ridge cap shingles.
Nailing the cap.
Measure down 6 inches from the center of the roof ridge and chalk a line parallel with the ridge.
How to cap an asphalt shingled roof preparing the peak.
Butt the edge of the first cap shingle along this line.
You ll need longer nails for this part as you re driving through more layers of shingles.
Overlap the shingles to cover the nails on the side edges and use roofing cement to cover the nail heads on the shingle at the end of the roof.
Make sure that the tab of the shingle in the second course will cover it completely.
This nailing area is right where you see the dabs of black asphalt cement that are just above the tab knockouts.
Basic steps to replacing a shingle roof.