Lift and snap the string on one side and then the other using the technique shown.
How to use a chalk line for roofing.
Holding down a chalk line in the middle to pop the line accurately.
The chalk box string is laid across the surface to be marked then snapped sharply causing the string to strike the surface leaving behind a straight chalk line where the surface has been struck.
Hammer a nail or drive a screw into one of the end points.
This technique is good for irregular surfaces and will help prevent unwanted double lines.
To distribute the chalk over your line shake the box several times.
Pull the string loaded with chalk out of the chalk reel.
Press down on the string about midway between the ends with your thumb or finger and hold it.
Use a helper or another nail to hold the chalk box end of the string.
Secure the line to the wall secure the hook ring on your chalk line to the wall or floor at your starting point.
Brevity is the soul of well i mean brevity is good so i may be doing some more fast paced short sweet ones should you like em.
Here is a quick guide on how to do it.
To pop long chalk lines accurately when flooring or roofing.
Mark the two end points of the line you are trying to draw.
Attach the chalk line at the starting point of the line.
Using white chalk on a white surface won t give you a readable line.