Subfloor is glued and screwed on top for a squeak free floor.
Replacing floor joists from below.
Then use pry bars and your reciprocating saw to pry and cut the floor joist away from the subfloor.
Installing a floor joist is a relatively easy task in new construction.
But if there s limited access to the joists it may be necessary to work from above removing the flooring and subflooring to repair or replace any damaged floor joists.
Start by cutting out a small 1 2 in 2 5 5 1 cm section of the floor joist with a reciprocating saw.
Years ago while working as a carpenter i helped stiffen a bouncy floor by nailing a new 2 10 to each of the 2 10 joists that supported the floor.
This joist was installed in 1863 and was located directly below where a heavy refrigerator now lives.
But replacing a joist in a house that already stands.
Depending upon the conditions it is possible to strengthen or repair existing framing members such as floor joists or roof rafters by adding reinforcing material sandwiching the member on either side with plywood is sometimes worthwhile but the plywood must be installed correctly for greatest strength.
Put the tip of the crowbar between the boards and push it in using the hammer to tap on the end.
Working in the unfinished basement below the bouncy floor we had to remove the plumbing and electrical lines running through the joists and then rerun the lines.
The foundation is open and the joists just drop in from above.
Using some construction adhesive like loctite pl premium available on amazon in a caulking gun run a small bead of adhesive along the top of the floor joists.
Pry the floor joist from the subfloor with the back of your hammer.
Replacing the floor under the bathtub toilet and the sink.
From initial inspection it appeared that someone had notched the joist too much and then installed a makeshift patch.
The notch was made where the floor joist recessed into a wood beam supported by chimney corbeling.
Lower the piece of subfloor you.
That s a different story.
Continue reading below our video of the day get out your crowbar and your hammer.
It was a complex expensive job.
First you re working from below.
This will create a weak spot.
