Nick Miles Contractors added airtightness, acoustic and thermal insulation after weather-proofing the underside of the tiles by torching in this Gloucestershire farmhouse. This method has been used for hundreds of years and is still effective against water penetration.
Torching the underside of tiles using a torching mix.
The roof space was finished with a lime plaster to maintain the aesthetic within an old building and importantly to maintain the 'breathability' of the whole structure.
Using compatible, breathing materials will ensure that the wooden roof structure is given the best possible environment to survive for the next few hundred years. Using hard impervious materials with wood should always be avoided as water will get trapped and will introduce problems of wet and dry rot, slowly but surely eroding the woodwork!