The end of the chalk line is tied to a loop or clip.
How to snap a chalk line for roofing.
Hold or secure the chalk line at the end point of the line.
You can create a straight line over a considerably length without any lasers or high tech equipment when you know how to snap a chalk line properly.
To pop long chalk lines accurately when flooring or roofing.
Then hook one end of the chalk snap line to your beginning point.
Stretch the chalk coated string tightly between the nails.
Pull straight up from the middle and let the string snap.
Pull the string loaded with chalk out of the chalk reel.
First shake up the chalk inside your tool or add chalk if it does not have any.
Attach the chalk line at the starting point of the line.
You may need a measuring tape to set these points.
Mark the two end points of the line you are trying to draw.
Using or snapping off a chalk line is simple.
Here is a quick guide on how to do it.