Hi all,
I am building a suspended timber floor for my new extension and I need to fit a small stringer joist to work around a step in the wall. The joist will be parallel to the wall, and below the DPC. If I attach it directly to the wall it risks getting damp and rotting. Is it sufficient to pack the joist out from the wall with some stainless washers to provide airflow, and if so, by how much? Should I put some DPC between the timber and the wall as well?
thanks,
dan.