It consists in identifying the presence and the state of conservation of the materials of the list A (insulation, false ceiling and flocking) and those of the list B (interior vertical walls: floors and ceilings, conduits, pipes, interior equipment and exterior elements).

This is the diagnosis of asbestos in private areas (DAPP). Only list B materials are searched for such as sprayed coatings, hard coatings, floor tiles, garbage chutes, insulation, roofing accessories, bituminous shingles, asbestos cement pipes (….) a house does not require an asbestos diagnosis but it is strongly advised to plan for it to ensure that the dwelling does not present any danger for future occupants or people who may have to carry out work.

For the common parts of the co-ownerships, the professional and craft premises, the public buildings, the trade… it is the technical file asbestos (DTA). It concerns the materials of lists A and B. The survey report indicates, among other things, the date, nature, location and the result of periodic assessments of the state of conservation.

Within the framework of work or demolition, it is a question of carrying out a specific identification which consists in identifying the materials of lists A, B and C. The search for these materials can be done by destructive sampling or dismantling.