This isn t the case.
How heavy of tarp to cover roof with tarp.
Lay the tarp out flat over the roof.
If the tarp doesn t extend over the peak of the roof water can get underneath the tarp rending it useless.
When unrolled the tarp must cover the damaged area and offer four feet of overhang from the roof s peak.
Lay more 2 by 4s on either side of the tarp and attach those as well for a tight well secured water barrier.
Make note of your measurements and choose a heavy duty tarp in the appropriate size.
The national average cost to tarp a roof on an emergency basis usually falls within the range of 200 1 000.
Let the rest of the tarp hang off the lower border of the roof that overhangs the wall known as the eave.
The tarp should be long enough to extend over the roof peak or hip and extend at least 4 feet down the other side.
Lay the tarp across the roof so that at least 4 feet 1 2 m lies on the sloped part of your roof on each side known as the peak.
Any extra tarp can hang safely off the edge.
This tarp for example is 12 mils thick whereas a standard tarp is typically only 5 mils thick.
That being said if the damage to your roof was caused by some sort of natural.
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.
The 2 by 4 should be about 2 feet longer than the tarp width.
Never lay the tarp out during a storm.