If you find mold in any materials take care of it before continuing with your subfloor work.
Do you replce floor joist after flooding.
Once the entire area is completely dry reinforce affected floor joists.
Tack a beam under the sagging joists.
In this case you ll probably pay only 100 to 300 for each joist repair.
Now that the joists you want to replace are visible it is time to remove them.
Find a replacement joist that is the same size as your floor joist.
However equipped with a dehumidifier and some fans it is easier than you think.
Joists will usually be 16 inches apart but there are also some cases in which they will be 24 inches apart instead.
Then set new joists same height as existing ones alongside the old.
If you hire a pro it may be expensive.
This step strengthens joists affected by water.
If the remaining solid wood is wet ventilate the area and allow it time to thoroughly dry before installing replacement materials.
Use a pry bar to remove any protruding nails and vacuum up the demolition debris.
Select a joist and select an end.
If the subfloor is spongy or there are any signs of mold or rot you ll have to expose the subfloor and related elements beyond the area of damage.
Cost to sister or replace floor joists.
Average costs and comments from costhelper s team of professional journalists and community of users.
However before you do this it is important that you take note of their location.
Keep this process going until moisture is gone.
Use a circular saw set to 1 depth to cut the subflooring back beyond the damaged areas until you reach solid structural framing.
Joist repairs mean you ll have to tear up your top layer and the subfloor and replacing them.
That is hard to do if the floor isn t at least three feet off the ground.
Step 3 remove the old joists.
If your floor joist is an i joist for example buy an i joist.
Use a tape measure to measure the length width and height of your existing floor joist.
A day until they re level.
Nailing two 2x4s together will work to span about three joists unless the sag is under a weight bearing wall.
Replacing the subfloor more extensive water damage often requires replacing the subflooring and sometimes the framing and other affected materials too.
You can side the joists with 2 inch by 6 inch boards or span spaces with lumber blocking.
This method provides easy access to remedy a water leak and foster drying after a flood by cutting out sections then taping them back in place after drying.
The key is to isolate the area to use the dehumidifier followed by circulating air using the fans.
Make sure you also buy the same type of joist.
Workmanship must be good but it s possible for a do it yourselfer.
Set a hydraulic jack and post under the beam and jack up the joists about 1 8 in.
Drying subfloor after flood damage can seem like a daunting task.
If only a few joists are rotted primarily at the bottom they can be repaired using a process known as sistering after the rot is cleaned away and the timber treated to prevent more problems a new joist is laid beside the old one and fastened to it.
