Subscribe or Renew Membership Subscribe Renew

Screwed and glued floors

user-635803's picture

I am in the process of buiding the house and i requested framer to screw and glue my floors (OSB gold product).

He agreed however what he did is nailed and glued floors initialy and said that he will screw the floors later during the back framing.

That didnt make any sense to me as if the glue is dry what is the point of screwing the floors at that time. He replyed that he never had any isues doing it this way, however i still dont understand what is the purpose if the glue is dry.

Appreciate anyones input....


Thanks in advance

Hi there,      Glued and (post #215383, reply #1 of 5)

Hi there,

     Glued and nailed is the most common method of good subfloor installation.  It is what I have done for years and have never had a squeak or any other issue.  As long as the nails used were ring shank 7 or 8 penny and properly set then you have nothing to worry about.  I know people do screw instead of nail and consider that a better job, but my opinion is if a good glue like PL Premium is used then nails or screws are merely clamps until the glue dries.  Going back to add screws later as you already mentioned is pointless if the floor has been fully glued and nailed.  

Floors (post #215383, reply #2 of 5)

Thank you for your input

All you're doing with the (post #215383, reply #3 of 5)

All you're doing with the screws is adding extra holding power. Shouldn't make any difference wether the glue has gone off or not. Glue sets up where it sets up and basically prevents squeaks. If you really want nice solid floors use 1 1/8" CDX t&g. That's a first class subfloor. 

What type of nails were used? (post #215383, reply #4 of 5)

What type of nails were used?

When dealing with a joint (post #215383, reply #5 of 5)

When dealing with a joint between two pieces of "real" lumber, using screws rather than nails helps to assure that a tight initial bond is achieved between the two pieces, for maximum effectiveness of the glue (and also the screws serve as "backup" should the glue fail).  With floor sheathing it's not as necessary, since the sheathing flexes a fair amount, and good quality nails can assure a tight fit.

Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville