Many old floors are sanded after the previous coverings are removed and suitable wood is found hidden beneath.
Floor sanding old nails.
Some people rent an industrial floor buffer for this step but a pole sander pictured is another great option.
Nail down any loose boards with finish nails.
After mopping the floor and letting it dry you use the buffer to run a 120 grit sanding screen over the surface.
Use an approved vapor retarder.
To detect nails drag a metal snow shovel across the floor upside down.
Using a 120 grit sanding screen buff the floor along each board moving back and forth with the grain.
The other problem you will have is trying to sand the floor flat you don t want to be sanding down more than 1 32 inch on your new floor because you will run into nails very fast and be out of wood to hold them in place.
This fine detail work can make your diy project look more like a professional job.
Sanding floors really isn t difficult it s just a lot of hard work.
Next use a floor buffer fitted with a fine grit screening pad to screen sand the flooring.
It will still squeak if you don t lift and renail the floor.
This type of sanding will level minor unevenness left by the drum sander and edger as well as buff away sanding scratches.
If you just sand over the nails it may not work leaving the heads high.
After completely emptying your room remove any old floor coverings nails and anything else that is attached to the floor and then give everything a good vacuum and clean.
When it hits a nail you ll hear it.
So countersink all nails by at least 1 8 in.
The use of those common nails seems to be somebody s desperate attempt to reduce the problem.
Most hardwood floors are installed with invisible nails and those that aren t are either old or intended to look old.
A variety of floor materials can be sanded including timber cork particleboard and sometimes parquet some floors are laid and designed for sanding.
It totally sounds like it s.
This floor restoration method requires a floor buffer with a sanding screen to scuff the old finish of the floor which is why it s called a screen and recoat.
Basically you want an empty clean surface to start working from.
When you re sanding nail heads will rip the sanding belt which costs you money or gouge the sanding drum which costs you more money.
Using a pole sander is a bit more time consuming but also easier to use than a buffer and more affordable.
Avoid using roofing felt as the asphalt may heat up while sanding and bleed into the floor.