Do You Have To Replace Subfloor To Replace Floor Joists

He snapped a chalk line to connect the layout marks which were centered over a floor joist.

Do you have to replace subfloor to replace floor joists. Not letting a subfloor dry. Making precise cuts allows you to replace the section without installing additional backing or blocks at the floor joists. Homes built on a slab foundation may not require them as many types of flooring can lay directly on top of the concrete. In that case you ll have to insert an entirely new joist and screw it to the solid wood of the old one.

While replacing the entire subfloor may not be necessary you will have to replace the damaged pieces to prevent the rot from spreading. Make sure to get all of the damaged or moldy. A subfloor provides stability and a level surface. When you replace the subfloor the new ends have to sit on the joists so cut out your wet subfloor along two joists on either side of the damage.

The subfloor is usually made from plywood or particleboard attached directly to the joists although it can be concrete in the basement or on the ground floor. 1 locate the floor joist below the subfloor at each side of the section. Moisture and pest infestation can damage subfloor. Replacing the floor under the bathtub toilet and the sink.

This can be a big project you may have to open more floor to insert the new joist move electrical or plumbing runs or raise a sagging floor. If you ve had a recurring leak your floor joists might be rotted and weakened too. Homes with floor joists need a base to provide a surface on which to lay carpet ceramic tile hardwood laminate and or vinyl. Wet lumber may lead to dimensional changes as the joists dry resulting in nail pops and floor squeaks.

Following the cutline on the subfloor chad used a cat s paw bar to pull all nails that might be hit with the circular saw blade. If you notice a soft spot under carpet or wood flooring it could mean that the panels below have weakened. While it is a good idea to replace rotted material with 2x8s it may require some notching to fit between the sub floor and ledger board. Generally newer home floor joists are made from 2x8s or new engineered i beams older homes however may have 2x6s instead.

Your floorboards squeak loudly.