Asphalt roofing shingles simply rely on the force of gravity to shed water from rain or snow melt.
How to replace roof shingles at corners.
Many pros shingle in a vertical line up the roof because it s much faster.
Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents.
Cut with a tin snips at the bend in the first step flashing.
Trim the shingles away from the ridge vent hole.
Use a flat pry bar and hammer to pry the nails out of the drip edge gently.
You ll need to ask another roofing professional to hold up the shingles while you do so.
Do the same with the next shingle continuing this step until you get to the far edge of the ridge.
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In the dictionary to shingle is.
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.
Attach he ridge cap shingles with two nails each.
Attach the plastic ridge vent with 3 roofing nails.
These chalk lines will serve as a guide for subsequent even numbered rows of shingles and odd numbered rows respectively.
If the plumbing vent is close to the peak of the roof lap the shingles over the peak of the roof.
Inspect the underlying roof sheathing for damage and make any needed repairs.
Understand the physics of how a sloped shingle roof works.
Adhere the loose corners of the first shingle with a dab of tar.
Gently lift up the shingles on the edge of the roof and locate the nails holding the existing drip edge onto the roof.
Nail the ridge cap at the two narrow bands molded into the plastic.
Once you ve reached the ridge bend the shingle over the ridge so that each side is equal and nail it into place with a single nail on each side.
Cut a couple of inches off the vertical portion of the dormer flashing and run the horizontal portion past the side wall that same distance.
Install the new drip edge as described above with cement and nails.
Make a 1 to 2 in.
Install a layer of roofing insulation as recommended by the roofing manufacturer.
Cut the last ridge shingle to the length you need but be sure that no part of the roof is exposed.
Install the shingles right up to the front wall.
A continuous bead of asphalt could trap condensation or windblown water under the roofing at some point.
Hammer down any large nails that are exposed by the removal.
Position the ridge cap shingles over the ridge vent.
If the roof shingles and all accessory roof components are arranged and overlapped with this in mind the roof should successfully shed water.
Snap a vertical chalk line from the inside edge of the first shingle on the second row to the top of the roof and from the inside edge of the first shingle to the top of the roof.
Nail the dormer flashing to both the wall and the shingles.
