Use the chalk line to snap a straight line vertically every 6 inches.
How to use a chalk line for roofing.
Fill the chalk box about half full with powdered chalk from a squeeze bottle.
These chalk lines will serve as a guide for subsequent even numbered rows of shingles and odd numbered rows respectively.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Mark the two end points of the line you are trying to draw.
Repeat this on both sides of the roof.
When the compartment is filled with chalk the string in the coil becomes coated in the chalk.
Marking straigh level lines with a spirit level can be a little tedious using a chalk line however can make things decidedly more simple.
The end of the chalk.
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.
You ll have a choice of red blue white or fluorescent chalk.
The best way to load chalk into a chalk line.
Here is a quick guide on how to do it.
Tap the chalk box occasionally to settle the chalk.
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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.
Fill your chalk box with blue chalk for general use.
How to use a chalk line.