Abstract: A rolling support for moving scaffolding alongside the side or end of a building under construction, the support including frame structure which rigidly connects two outriggers together, a leading outrigger and a trailing outrigger, each of such outriggers having a near-side traveling wheel to ride on an exposed structural roof member adjacent the side or end of a building, and a far side force roller which extends beneath a parallel exposed structural roof member inwardly from the side or end of the building, the outriggers being parallel to one another and riding on parallel exposed structural roof members. The near-side travel wheel bears down on its exposed roof member and exerts substantial downward pressure thereon while the far-side force roller bears upwardly against the underside of its exposed roof member. Remote controlled motor means are mounted on the frame so as to drive the near-side traveling wheel.