The wheels on roof ladder hooks are made of high impact abs plastic or solid rubber.
Special roof ladders.
When the ladder rests against a surface such as a roof line it needs to extend 3 feet beyond the top support point.
Roofers will usually use an extension ladder to gain access to the roof and a second extension ladder with wheels and hooks to secure it to the ridge of the roof to complete the work from the roof.
Roofing contractor and american ladder institute.
They are designed to roll across the shingles without harming them.
The ladder should be at the correct angle with the base 1 foot out from the surface it rests against for every 4 feet of height to that point.
Some roof ladder hooks are made of aluminum.
Multipurpose ladder 14 special ladders 12 tanker ladder 5 roof ladders 4 pole access ladders 2 step stools and work platforms 12 ladder accessories 71 spare parts for ladders 140 zap zarges work platforms 5 lifts 1 mobile platforms 4 mobile scaffold towers 99 fixed ladders 60 shaft equipment 43 packaging.
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Reach mpxa aluminum multi position ladder combines versatility safety and strength.
With 20 telescoping adjustable heights this ladder can be used as an extension ladder double sided twin stepladder 90 wall ladder stairway stepladder and as 2 scaffold bases.