A chalk line is a very handy piece of kit when marking out on flat surfaces you can pick up a chalk line for less than 5 from most tool shops etc.
How to use a chalk line for roofing.
The end of the chalk.
Here is a quick guide on how to do it.
You may need a measuring tape to set these points.
Use the chalk line to snap a straight line vertically every 6 inches.
Marking straigh level lines with a spirit level can be a little tedious using a chalk line however can make things decidedly more simple.
When the compartment is filled with chalk the string in the coil becomes coated in the chalk.
Fill your chalk box with blue chalk for general use.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
How to use a chalk line.
Fill the chalk box about half full with powdered chalk from a squeeze bottle.
Mark the two end points of the line you are trying to draw.
You ll have a choice of red blue white or fluorescent chalk.
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Every 5 inches make a new mark until you get to the rop of the roof.
Snap a vertical chalk line from the inside edge of the first shingle on the second row to the top of the roof and from the inside edge of the first shingle to the top of the roof.
Repeat this on both sides of the roof.
Using or snapping off a chalk line is simple.