unitblock replied to the topic Renovating With Asbestos in the forum Value Adding 14 years ago
One extra bit of safety before you go working around the hole would be to dilute some PVA glue in a spray bottle and spray this directly onto the broken edges , this will bind the fibers together, and were a P2 dust mask just to be shore . A simple patch as explained by Adrien will cost very little.
good luck
Matt