Having issues with scanning so will try to explain my plan. I am ok with continuing the ventilation under the new floor and understand that the raised floor not have a dpm layer but dpc in the brickwork to form a block of the damp. My new outer wall construction would be cavity wall with the...
I am planning on probject managing a rear extention next year and I have most things sussed except how to tie in and ensure continuous damp proofing between new concrete floor of the new extension and the existing house floor which is raised wooden flooring. Can anyone help on this.
