Floor opened up
A large trench is opened up. this trench goes from 6" either side of the crack.
Wall crack
Her we can see the large crack that goes down on an angle
Flexible sealant
The most important line of defense is this Flexible sealant that is installed into the crack.
Drainage Foam.
Just in case any water gets past the sealant, the drainage foam will carry it down tot eh gravel bed under the floor.
More flexible sealant
Flexible sealant is installed over the drainage foam.
Sealant troweled over
The flexible sealant is troweled over so no amount of water can get past it.
Cleanspace membrane.
As a precautionary, the Cleanspace wall membrane is attached and sealed against the wall and tucked into the gravel bed before the floor is re-concreted back to original height.
