First time poster everybody - so apologies if it's tedious or previously addressed - I can't find it!
We've just had a ground-floor extension to our house built. The old portion of the room has pine floor boards on the joists with a beautiful oak strip laid on top. This is very thin (7-8mm) and I cannot match it without spending a Kings ransom so it has to be transplanted into a future project. (For those interested and in the know, it's marked "Long-Bell Lumber, Kansas on the underside - I've not come across this sort of floor before).
Anyway, the new bit of the room has a new (4-week old) concrete floor which is set lower than the existing joists (as we were still hoping to match the old flooring).
I am planning some new oak hardwood strip flooring - 18mm thick, 57mm x 1200mm. The plan is to strip the old floorboards altogether, secret nail through the tongue into the joists (I think about 300mm apart) and glue the grooves. In order to raise the level in the new bit, I'll lay some suitably thick ply on top of a DPM on the concrete and put the new oak onto this.
My questions are:1) Is this safe to do despite the concrete being so "young" - I'm hoping that the DPM will completely protect the wood.
2) Is it sensible to nail and glue in one part and float the floor on the other or should I stick to one technique and nail to the plywood as well? I'm worried that if the new portion is free to move more than the other then it might cause problems where the old and new bits meet.
3) Is there any benefit in attaching felt etc to the old joists or should I just crack on and nail straight to them?
Thanks in advance.
We've just had a ground-floor extension to our house built. The old portion of the room has pine floor boards on the joists with a beautiful oak strip laid on top. This is very thin (7-8mm) and I cannot match it without spending a Kings ransom so it has to be transplanted into a future project. (For those interested and in the know, it's marked "Long-Bell Lumber, Kansas on the underside - I've not come across this sort of floor before).
Anyway, the new bit of the room has a new (4-week old) concrete floor which is set lower than the existing joists (as we were still hoping to match the old flooring).
I am planning some new oak hardwood strip flooring - 18mm thick, 57mm x 1200mm. The plan is to strip the old floorboards altogether, secret nail through the tongue into the joists (I think about 300mm apart) and glue the grooves. In order to raise the level in the new bit, I'll lay some suitably thick ply on top of a DPM on the concrete and put the new oak onto this.
My questions are:1) Is this safe to do despite the concrete being so "young" - I'm hoping that the DPM will completely protect the wood.
2) Is it sensible to nail and glue in one part and float the floor on the other or should I stick to one technique and nail to the plywood as well? I'm worried that if the new portion is free to move more than the other then it might cause problems where the old and new bits meet.
3) Is there any benefit in attaching felt etc to the old joists or should I just crack on and nail straight to them?
Thanks in advance.