Strip and re-cover of pitched roof using new eaves guard trays, Cromar Vent 3 Pro breathable membrane pitched roof underlay, 25mm × 50mm tanalised lath battens, anthracite grey smooth flat concrete roof tile, vented concrete roof tile for the bathroom extractor fan flexi hose pipe, anthracite grey angled concrete ridge tiles mechanically secured using dry fix ridge system and code 4 milled lead flashings/aprons at the chimney stack and abutment walls