Hammer the nail into the top part of each shingle.
New gingles on roof.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Repeat this on both sides of the roof.
The shingles should jut out from 1 4 to 3 8 inch 7 to 1 cm over the drip edge.
Installing new roof shingles over old effectively doubles the weight of the roofing so you have to make sure your roof structure can handle the extra load.
On average a new roof can range anywhere from 6 000 to 17 000.
Then there are high end roofing installations.
Nail a horizontal row of shingles over the drip edge.
Leave the old valley flashing in place and install new over it.
Because asphalt shingles are routinely exposed 5 in rip down the first strip the starter course so that it is 5 in.
Use the chalk line to snap a straight line vertically every 6 inches.
Every 5 inches make a new mark until you get to the rop of the roof.
Meanwhile the most popular roofing material asphalt shingles may cost 4 000 to 6 200 for a full installation.
To level out an existing asphalt shingle roof rip down reduce the height of two courses of shingles as shown in the drawing below.
Try on a new roof shingle style boards build your roof 2020 shingle color of the year design inspire get started financing your roof find a contractor.