Roof Line Not Straight

Ask an assistant to hold the end of a chalk line on the first shingle at the longest edge of the roof.

Roof line not straight.

The rotten wood may be because the sag has caused water to gather repeatedly in that area. It is probably feasible to straighten up the roof line a bit when the metal roof is installed. Every 5 inches make a new mark until you get to the rop of the roof. Sometimes you can adjust gutters and vents for a more uniform appearance.

Crooked gutters can make a roof look crooked even if the roofline itself is straight. At other times the gutters may need to stay where they are so gravity can do its work. It might be something basic you can handle yourself but. This will be the bottom of your board.

If you can see a dip curve or swag on the peak when standing in the street your roof has a problem. Run your string line from the nails and measure up from the string. After your floor is straight it is time to concentrate on the next floor s ceiling. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.

The end of the line is 4 inches from the lower edge of the roof which is standard exposure. This droopiness could be caused by moisture and ventilation problems. Sometimes an uneven roof is simply a sign of minor errors or aberrations in construction. Screw it into the wall and repeat this on the opposite wall.

Roof lines should be arrow straight. Use the chalk line to snap a straight line vertically every 6 inches.