As part of the refurbishment of a Victorian industrial building, we are cleaning and reusing many of the original roof tiles. During the 1980s these were coated with a bitumen-based substance to prolong the life of the roof. We were dismayed when samples of the coating were found to contain low levels of asbestos.
Fortunately, the concentration is too low to bring the work within the asbestos licensing regime. The laboratory has also told us that the material is not notifiable. Does this mean that we can dispose of the waste with the rest of the construction waste from the site, or does it have to be dealt with separately?