u/Inkyskiess

So, I lack expertise in dealing with asbestos and tradies clearly. We had a builder over who accidentally knocked down a wall behind our gyprock wall that was pure asbestos. He did not know it was asbestos.

Basically, while he was working, windows and doors were left open. After he finished demolition, we went in and vaccuumed and noticed dust trailing outside of the room by metres and up on the other side of the doors too.

Anyway, we confirmed suspicions by testint a sample and it was asbestos.

Upon hiring a removalist, who advised verbally that he would make the room safe and clean all surfaces - walls (two rendered painted brick, two gyprock, concrete floor, windows, AC and doors) by vacuuming, wet wiping then spraying a PVA solution.

After the job, the "site" was deemed safe by a licensed asbestos assessor.

Two days later I go in and dry wipe, in case any airborne dust had settler on walls etc. The wipes have sooo much dust on them, like years of dust build up, from the brick walls, gyprock walls and even framing. Mopped the concrete and water was dark brown.

In my mind, should wet wiping and vaccuumint not have gotten rid of dust substantially? And the glue solution supposed to suppress dust down?

If there is heaps of dust - ie turning an electromagnetic wipe completely brown on both sides after wiping 3m squared, does this not mean the vacuuming, wiping and glue solution did not work?

I also found out later that the removalist booked the LAA and only isntructed him to assess the timber framing off of which the asbestos wall was accidentally destroyed and removed off of, nothing else in the room is cleared as safe.

The removalist is saying:

1. How do I even know there is asbestos dust in the dust I wiped? In my mind, the dust flew so far outside, that surely there is asbestos dust on walls in the room combined with normal dust. If there is so much dust still present, the cleaning was inefficient?

2. that the asbestos was on the timber framing so they only cleared that. Verbally they promised to clean and clear for safe habitation, the whole room..

3. the third thing is he had promised to seal up the room safely before coming in to demolish tiny remnants of asbestos and remove and clean the debris. Upon arrival he refused to seal everything, saying it was not possible.

4. he advised he would be part of the team doing the cleaning. On site, he stood outside to "secure the perimeter" rather than doing any removalist works.

Hoping someone can help with the above and get him to come back and complete the work :(

I had left him a good 5 star review before I went back in the room to dry wipe and before we realised from the report that only the timber framing was clear.

I want them to come back and brush vaccum everything and wet wipe after then assess everything as safe.

I am in Australia.

So the garage was turned into a bedroom a few decades ago. Weepholes were blocked before a very thin render layer was placed over the brick walls. Below the old carpet is jusr tiles and soil under that I believe. My family concreted over the backyard grass and installed a drain on the slope downwards so water shouldn't be pooling under the house as much as when we had a grass backyard.

My question is, if I was to put a gyprock wall and insulation over top of the single brick layers (evened out with the double brick where the pillars are), would there be any health or other issues (eg mould) for the room occupant?

It doesn't currently feel moist but the render is bubbled and peeled up like 35cm from floor in multiple areas of any of the brick walls. May have built up over time and still is, or may have happened during the time we had grass, well before the backyard concrete.

There is already floor to ceiling mould in a corner of the room, where the brick wall meets perpendicular gyprock wall and there is a minor gap that let's a small breeze in. But we intend to knock that wall down to put insulation in and rebuild.

Thanks in advance.