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Posted by tbasc@bellsouth.net on August 31, 2006, 8:21 pm
sakuragirl1 wrote:
> Recently bought a 33 year old home that has some significant settling
> and very wavy subfloor. sub dips a good 1/4"-1/2" in some spots. We
> were going to install HW but the installer stated the sub was so bad he
> would not feel comfortable laying over it unless we got it fixed.
> So...We got two estimates to fix which were about the same cost, $5k,
> but we now have to decide what is the better way to go. Rip out and
> replace the sub in all the rooms we are laying the HW (living, dining,
> hall, master bedroom) or shim the exisiting sub and lay new sub over
> the top. Here is the to do list for replacing:
> Cut old sub floor around 1 1/2" from the wall
> Remove old plywood;
> Reinforce / level existing joists
> Blocking joists in the middle
> Install 2x4s on the perimeter to support connection between new sub
> floor and walls;
> Install new =BE in. plywood (screws, liquid nails)
> Fill gaps between new and old sub floor with "FixAll";
>
> Any suggestions or comments on the best solution? We want to get to the
> heart of the problem, but are afraid of what ripping and replacing may
> lead to.
> Also, anyone heard of insulating the flooring to reduce noise?
> Replacing contractor suggested we do so, but was wondering if this is
> necessary or recommended at all.
> Thanks in advance for any help!
I would take out the existing sub floor and find out why it dips. You
will be able to check for damaged joists and sister new joists to give
a strong, level base for the floor.
TB
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