The 2 by 4 should be about 2 feet longer than the tarp width.
Using tarp to cover roof.
Sandwich the tarp by nailing a second 2 x 4 board to.
Screw the 2 by 4 directly into the roof to secure it.
Then fold the excess tarp under a few rotations for a tight clean fit.
There should be an additional 4 feet.
Create an anchor board by rolling the tarp s peak end with a 2 x 4 inch board and nailing the tarp to your board with.
However not all jobs can be completed in one go and the crew will need to return to complete everything.
Partially unroll your tarp to cover the damaged area from the roof s eaves to peak.
Weather is the largest determining factor on whether or not roofers use tarps to cover a roof.