Filling gaps below plasterboards

[JamieB3009]

Hello,

I have removed some skirting boards in a room I am decorating and notice there is a gap all the way round between the bottom of the plasterboard and the chipboard floor. I understand the plasterboard Shouldn’t be butted up against the floor but I can feel draughts coming from the gap. Provided I use something flexible and non-absorbent, can these gaps be filled? If so, what is the best product to use?

cheers

 

[Alastairreid]

Expanding foam will do it.