Open valleys have metal flashing to protect this critical area of the roof.
How to roof a house with asphalt shingles flashing.
Snap a chalk line between the two transition marks on the shingle roof.
As a general rule of thumb roofing a house involves more than just adding exterior shingles.
A solid watertight roof is absolutely essential to your home but the asphalt shingles that protect your roof from the elements don t last forever.
Make sure that the tab of the shingle in the second course will cover it completely.
See below for a shopping list tools and steps subscr.
15 asphalt saturated felt underlayment some codes may require no.
As you did with the flashing always lap upper pieces over lower pieces.
The line extends 12 inches beyond the marks each way to establish the length of the transition flashing.
Repeat this on both sides of the roof.
Start at the bottom of the roof and work your way upward one straight row at a time.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
Use the chalk line to snap a straight line vertically every 6 inches.
Then begin nailing the shingles to the roof working in rows and starting at the edge of the roof.
Use a utility knife to cut shingles as needed to properly fit edges and corners.
Every 5 inches make a new mark until you get to the rop of the roof.
Once you ve done that cut your shingles to size if they re not already.
Cover the rest of the roof with no.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Each layer overlaps the lower one by at least 2 in.
Secure the horizontal flange to the roof.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Proper steps to shingle a house roof.
To install asphalt shingles start by installing underlayment and new flashing on the roof.
Roofing a house can easily become a full weekend diy project especially if you are looking to install a roof on a house that is non traditional in size or style.
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.
