Ceiling Lath

3 8 galvanized diamond mesh lath with wafer head sharp point screw to cross tees use cadmium coated screws on exterior applications.

Ceiling lath. Install perimeter channel molding at wall ceiling junctures to support tees independent of walls. The plaster was traditionally applied to the laths in three lime putty layers. One option is to cut out the damaged area and install a 3 8 thick sheet of blue board and plaster.

A typical lath and plaster wall required a minimum of three coats of plaster resulting in a dense rock hard coating nearly one inch thick. Effectively this means that the plasterwork is hanging underneath the laths virtually unsupported. The large number of openings provide for a better stucco bonding.

Can be used as a plaster base and reinforcement on almost all types of walls and ceilings and over wood or steel framing. Besides the normal wear and tear of living plaster and lath ceilings are at the mercy of gravity and they can take only so many water leaks and structural movements before they pull away from the framing. It consists of narrow strips of wood laths which are nailed horizontally across the wall studs or ceiling joists and then coated in plaster.

Sizing up the ceiling. Lath and plaster is a building process used to finish mainly interior dividing walls and ceilings. A cross section of a lath and plaster ceiling is shown to the right.

Sometimes it is only the horse hair strands in the mortar that is holding up the plasterwork. The laths are thin strips of wood typically about 25mm by 6mm 1 by 1 4 inch nailed to the underside of the timber joists with a gap of about 6mm 1 4 inch between each lath. Use this 27 in.

Steel lath for both interior and exterior projects if you require an easily cut material that can conform to curved surfaces. When combined with the lath framework beneath the lath. A lath and plaster ceiling can be left in place and over boarded with plasterboard using long drywall screws through the existing lath and plaster into the joists not ideal but quite commonly done.