Aluminium Soffit Boards Profiled 90 Degree Corner Alumasc Skyline - Mill (Unfinished)Aluminium Soffits: 90 Degree Corner The Alumasc Skyline aluminium profiled soffit system provides a quick, easy and cost effective solution to finishing the underside of an overhanging roof. Each 90 Degree corner is supplied with a loose union fixing which secures to the underside of the roof allowing for the soffit to simply click up into place, avoiding the need to penetrate the finished surface while maintaining air movement. At the Coping