Roof Line Not Straight

The end of the line is 4 inches from the lower edge of the roof which is standard exposure.

Roof line not straight.

It also may just be due to structural age or possibly a defect in the original structure. Screw it into the wall and repeat this on the opposite wall. Use the chalk line to snap a straight line vertically every 6 inches. The rotten wood may be because the sag has caused water to gather repeatedly in that area.

Sometimes you can adjust gutters and vents for a more uniform appearance. This droopiness could be caused by moisture and ventilation problems. Repeat this on both sides of the roof. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.

Screw a 2x4 about 12 long with a small nail sticking out on the 1 1 2 side. Sometimes an uneven roof is simply a sign of minor errors or aberrations in construction. Crooked gutters can make a roof look crooked even if the roofline itself is straight. This will be the bottom of your board.

Run your string line from the nails and measure up from the string. Roof lines should be arrow straight. After your floor is straight it is time to concentrate on the next floor s ceiling. It might be something basic you can handle yourself but.

It is probably feasible to straighten up the roof line a bit when the metal roof is installed. Ask an assistant to hold the end of a chalk line on the first shingle at the longest edge of the roof.