Check for sagging ceilings.
Drain them carefully as shown
in step 2. If the floodwaters
went above your ceiling, you should
replace it if it is made of wallboard.
A plaster ceiling will dry eventually,
but if it has too many cracks
or sags, you will have to tear
it down and replace it. Remove
any wet insulation in the ceiling
to allow the joists to dry.
Remove water trapped within your
walls. To check for water, take
off the baseboard. Stick an awl
or knife into the wall about 2
inches above the floor (just above
the 2x4 wood sill plate). If water
drips out, cut or drill a hole
large enough to allow water to
drain freely. (Use a hand or cordless
drill or saw to avoid shock.)
If you are going to replace the
wallboard anyway, you don’t
have to be neat: use a hammer
to know out a hole.
If your walls are plaster, a knife
won’t penetrate them. Drill
a hole above the sill plate to
drain the water. (Use a hand or
cordless drill or saw to avoid
shock.) Do not use a hammer or
chisel on plaster because the
plaster could shatter.
In a newer home, you may have
metal sill plates. A metal sill
acts as a gutter at the bottom
of the wall cavity. Drill a hole
at the floor level to drain water,
using a hand or cordless drill.
Repeat the process to drain
all the wall cavities. Depending
on the spacing between studs in
your walls, make a hole every
16 inches or every 24 inches.
Watch out for the wiring, which
is usually at the same height
as your electrical outlets. If
there is wet insulation, you will
have to remove the wallboard in
order to take out all the insulation.