This house in Snowdonia National Park was rapidly approaching a very serious state. The nails were very weak causing slate slippage all over the roof. At the rear of the house, a leaking valley had been causing the wood to rot for sometime, leaving no option apart from extensive repairs. Care was given to restoring the slate banding in the roof and new lead was replaced with new code 5. On the porch, a lead apron was fitted and cemented into place. The main ridge on the front and back had new ridge tiles, but we kept the old slate roll and wings on the front dormer.