Current Agrément Certificates for IsoBoard (PDF) Over Rafter and Truss Agrèment Certificate 2010/382 (PDF) City Wall Agrèment Certificate 2000/276 (PDF) Over Purlin Agrèment Certificate 2001/287 (PDF) Inverted Roof Agrèment Certificate 2000/277 (PDF) Nail up ceilings Agrèment Certificate 2006/323