Hi, I have a 1930’s bungalow in the UK. The tiles are definately asbestos, the less dangerous type. The roof has been patched a lot but doesnt leak. It has been spray foamed to hold the tiles in place. The previous owners made a loft room, properly insulated and dry lined, velux windows etc. Its very nice. However I am aware that the roof could do with renewing. How easy will this job be? Will there be any issues with it, apart from the cost of the asbestos disposal?