Lifting and replaceing floor

[600rob]

I need to lift most of the t&g boards in the bathroom.

What's the best way to lift the boards if the joints are glued?
Cut down the joints with a circ saw or multitool where access is tight? Then try to lever up with a crow bar?

Also the joints seem to go under the walls so ill have to cut the boards where they go under the walls.

When it comes to replacing can i just fit noggins to support the ends of the cut boards?

 

[Deleted member 174758]

Set your saw to the same depth as the boards then cut out. Run as tight to the wall as you can. Add noggins (2 x 3 or larger) to carry unsupported joints at the ends of the new boards.

If at all possible try to stop short of removing the last section of the floor between joists running parallel to the wall and a stud wall itself as this can leave you with a support problem unless the stud wall sits directly stop a joist. If you end up with a stud wall carried on the floor alone and no supporting joist, solid strutting or noggins, then you'll need to manoeuvre some bigger noggins from the joist on one side of the wall to the one beneath the floor on the other side and get a fix on the blind side somehow (it can be difficult).

Additional support at the edges of joists cam always be added by planting 2 x 1 or 2 x 2 timber on the side of a joist.

Make things easy on yourself by pre piloting (and countersinking) screw holes on noggins and plant ons, especially if these are at an angle

If the flooring is chipboard, OSB or plywood an additional problem might be that the timber is glued to the joists, sober prepared to attack reluctant pieces of flooring with a hammer and widish wood chisel (1-1/2in/40mm) if pry bars fail to dislodge it

 

[600rob]

Thanks for the info. managed to get the first small board out by cutting through the glued joints with the multitool but took a while to cut.
will probably use the circular saw for the larger boards otherwise it'll take forever

 

[JohnD]

I found a multicutter pretty well essential to cut close to walls and in corners. A half-moon blade cuts a straighter line than a dagger, but you need the dagger in corners.

If you have a circular saw, it will cut quicker and straighter in long runs.

if you can take the skirting off, you have more chance of making a cut that will not show after replacement

Beware pipes and cables, and mark them on the floor.