Asbestos Internal Wall Sheeting

Ldb is a lightly compressed board containing asbestos fibres in a calcium silicate plaster.

Asbestos internal wall sheeting.

Ldb can contain up to 70 per cent asbestos fibres by volume. Normal plasterboard afaik has never contained asbestos. Asbestos sheeting to my knowledge is cement with asbestos reinforcement in walls and ceiling is commonly around 6mm thick and thicker in particular applications and in walls and ceiling is quite hard although when used as underlays in floors could be much softer. These will make a sharper tapping noise.

If your home was built after the 1930s your interior walls are probably at least partially constructed of drywall which was and still is typically sold in four foot by eight foot panels. As others mentioned rare to see a whole house sheeted in it more likely wet hot areas rooves old fences etc. Asbestos cement sheeting typically contains between five to 20 per cent asbestos. The asbestos fibres are bound in the cement matrix preventing them from moving.

It is sometimes referred to as asbestos insulating board. Asbestos was used in a number of different materials that were used to create walls which makes visual identification difficult. Flat sheet fibro is the most common asbestos cement sheeting. Cement sheeting was made of asbestos fibres and cement mix usually in the ratio of 1 9.

Some of the most common types of acm that were used to create walls include asbestos insulation board aib and cement sheets. In single family dwellings these sheetrock boards did not usually include asbestos fiber although until 1980 heavier insulated cement boards used as firewalls between units in apartment houses and commercial buildings often did.