Electrical conduits shoud be run over the top of the Echo slab with a 40mm river sand and cement leveling screed placed over the top.

The underside or soffit of the slab is smooth and does not require plastering.

To finish, rake the underside of the joint clean soon after grouting.

Trowel a small quantity of Rhinolite or similar into the underside of the joints.

Finish to a smooth rounded shape by running a piece of plastic conduit along the joint.

N.B. It is not recommended that the joints are plastered closed. (Should you wish to do so, ask Echo for a recommended specification).

Apply a bonding liquid to the soffit before applying a textured paint.

"V" joints on the soffit are a feature of Echo Prestress Hollow-Core slabs and should not be plastered closed.

Conduits should be run over the top of the Echo slab.