I don't really want to screw it down as the floor was full of rusty screw holes already. I am thinking no nails or similar? What do you recommend?
I used vinyl flooring glue (water based) from B&Q - really tacky once part cured - then you just lie the foam down and walk all over it. Jobs a good'unwhat did you glue with, pva or similar? was it the type of insulation you use with laminate flooring?