This ...Remember, it's not the fall that gets you, it's the sudden stop at the end. Ask yourself if the extra $$ will be worth it vs a potential injuryMake sure you get something suited for the job, meaning it has a dynamic component. Even a 3 foot fall on static gear generates enough force to break carabiners and/or you.
For years that was my go-to setup for roof work on remote job sites where OSHA never set foot - much less in the way and easier to use than an osha harness.rock climbing harness, a few locking carabiners, grigri, and a 9mm dynamic rope
Hang for half a day and you'll be cold when they find you.If you’re working by yourself and fall off a roof, then what? It sounds silly, but hanging in a harness for half a day is not something anyone wants.
In addition to a harness and rope it’s handy to keep a few other things to make it easier to find an anchor. I keep a couple 3/16”x1-1/2”x1-1/2”x10” steel angles with six 1/4” holes in the bottom for Simpson screws and a larger hole for a steel locking carabiner - these are easy to screw into the framing of new houses. A winch tree protector is nice to have to make an anchor out of a beam, tree, car axle, telephone pole or whatever. A second rope that can be thrown over an existing roof and anchored on each end is nice if you are working multiple sides and don’t want to be constantly moving your tie off, or if you have to triangulate a tie off. A third working rope is essential if you’re constantly lifting or lowering things. A few of the bolting eyes used in fixed climbing routes, and load rated concrete screws (and sds concrete drill) installed in something solid may be your only anchor for oddball jobs. Slings made of load rated tubular webbing can greatly simplify attaching to things, much like a smaller more refined tree protector.
If you’re working by yourself and fall off a roof, then what? It sounds silly, but hanging in a harness for half a day is not something anyone wants.