Good morning all. I've just ripped up the nasty old carpet in my new/old house and will be replacing it with solid bamboo flooring. I have a problem though. The subfloor consists of 1x4s at 45-degrees across the floor framing (which is fine), but on top of that, instead of what should be plywood, is 5/8 (I think) particle board. Particle board isn't exactly known for its ability to hold a nail - in this case, the nails from my wood flooring. And even if I wanted to glue it down instead (which I don't because I really hate working with floor mastic plus I'm trying to stay enviro-friendly by not using it), then the incredibly stubborn carpet residue remaining on the particle board would prevent the glue from getting a solid bite on the subfloor. My question is: Is there a way I can practically nail my wood floor to the particle board and expect a good bite? Or can I use long nails and go right through it to the one-bys below? Thanks!