Lashing your ladder although not a perfect solution one of the fastest and easiest methods of securing a ladder for a slope is to lash it.
Set up ladder on angled roof.
Your ladder should be 1 meter out for every 4 meters up and the ladder legs will create a 75 degree angle with the garage roof or first story roof.
Set up the ladder by following the angle rule or 4 1 rule.
The pivit ladder leveling boxes are lined in rubber so that you a have traction to shingled roofs and provides some protection to the shingles.
If you need to use a ladder on a steep shingle roof you need a pivit ladder tool.
Stand facing it with your feet touching its feet and your arms extended your palms should rest on a rung at shoulder height.
Any ladder that does not support itself predominantly single pole and extension ladders needs the correct ladder angle to keep it both sturdy and safe.
The general rule of thumb to follow is maintaining an ideal ladder placement ratio of 75 degrees.
This means the base of the ladder needs to be about one quarter of the ladder s length.
Set up the ladder the next thing on your to do list would be to take the ladder up to the roof and start setting it up.
This tool will give you a sturdy and level base to place your ladder on slanted ground.
For a quick check on the angle of your ladder.
To protect your asphalt roof avoid putting the metal sides of a ladder down on the roof surface without protecting the shingles.