Re: How to access roof
The roof anchor with the fall protection kit is intended to be a temporary anchor that fastens into the roof sheathing. Generally, it is fastened straddling the ridge; after removal either the holes are sealed with patching cement (only leakproof for about a year) or the damaged shingles are replaced. It's not suitable for permanent install as there is no way to seal the fasteners. The permanent anchor you linked fastens to the the structure (specifically the trusses or rafters) and includes flashing which is installed overlapping the lower shingles and underlapping the upper shingles. There should be a cap which fits over the anchor and flashing.
As for setting up the ladder on the gable end, you may find that the ladder wants to twist due to the fact that the slope of the roof makes the contact point on the lower side further away from the ladder rail. I accept no responsibility for your safety, but one way that I have overcome this is to angle the ladder so base is positioned to one side of the top -- but that only works if the ground is absolutely level. The ladder still must be vertically straight as I am facing it ready to climb on even though the ladder and my body is turned relative to the wall, and both ladder legs must be solidly on the ground.
To ensure that the ladder won't fall to one side or the other, I place one foot on the bottom rung and with one hand, pull the ladder away from the wall. If the feet are uneven, the ladder will tilt to the side that's not sitting on the ground. If it's good, it doesn't tilt.
I like to have the ladder extend at least 4' above the edge of the roof. This gives me a good place to hang on without having to bend down as I'm getting on and off the roof.
Last edited by Fencepost; 01-06-2014 at 06:55 PM.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.