I intend to lay a new solid oak floor floating it on a combi underlay - I believe removing the skirting will provide the neatest finish but as the underlay needs to go up the wall by a couple of inches this will stop me glueing the skirting board back in place and I'll have to nail it - the nails could go through the DPM will this be a problem when the floor moves and how can I get round it??