To install asphalt shingles start by installing underlayment and new flashing on the roof.
How do you put asphalt shingles on a roof.
Once you ve done that cut your shingles to size if they re not already.
Install the shingles so that each one is overlapping the shingle directly below it which will conceal the nails.
Every 5 inches make a new mark until you get to the rop of the roof.
Make sure that the tab of the shingle in the second course will cover it completely.
Then begin nailing the shingles to the roof working in rows and starting at the edge of the roof.
Secure the horizontal flange to the roof.
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.
Many pros shingle in a vertical line up the roof because it s much faster.
Use the chalk line to snap a straight line vertically every 6 inches.