clipping rigging safety single rope and locking carabiner into fix permanently on roof structure

abseiling abstract access accessory anchor architecture arrest backdrop background building buildings carabiner certifies clipping closeup competition concept construction dangerous design equipment fall fix hand hang harness height heights high industrial industry installed into job karabiners locking maintenance mechanical object occupation outdoors permanently perth point prior professional protection repair rigging rise roof rope safely safety single site stainless strength structure system technician technology used