Hi, I’m just about to start renovating the loft in our house in Aveyron, and just wondered if anyone had any advice (from building knowledge or previous experience) It’s a very old house, but the loft and roof seem to be reasonably sound. The roof is composed of tiles nailed onto wooden batons/planks, which lay directly onto the sloping rafters. There seems to be no obvious leaks - Do I need to add a waterproof layer between the tiles and the rafters (involving a complete roof renovation)? - What is the best type of insulation to use (I’ve read a lot about the advantages/disadvantages of rockwool, or the newer foil-type insulation), but wondered what would be best for laying in between the rafters on this type of roof? Also can anyone suggest any good makes? - What is the best way of attaching the insulation to a sloping roof – can I staple directly onto the wooden batons/planks between the rafters? - What is the easiest, most lightweight material to cover the insulation and ‘finish’ the roof (ie. lightweight plasterboard or tongue & groove etc)? I will be attaching this between the rafters, so the rafters are still showing - I’m assuming I don’t need planning permission for this, as long as I don’t declare it as another habitable area when it comes to sale? Any other advice would be much appreciated. Cheers Scott