The programme is made up of 4 Modules. Module one covers: Flashing to Chimney penetration; Pitched Valley gutter linings; Flashing at horizontal and raking abutments; Details at pipe penetrations; Securing free edges of flashings; Flashings to ridge and hip roles; Working Techniques. Module two covers: Box gutters; Parapets and tapered gutters; Gutter outlets; Weatherings to cornices; Weatherings to parapet walls; Working techniques; Fixing and clipping. Module Three covers: Flat roof areas; Pitched roof areas; Fixing and clipping; Working techniques. Module Four covers Weathering to Dormer projections; Vertical cladding systems; Various jointing techniques; Working techniques; Fixing and Clipping techniques; Ventilation and Joint across falls.