Metal lath also rusts and will can eventually cause problems in the structure or in the artwork of your project.
Metal lath concrete wall.
Yard wood solid plaster metal other metal wood or concrete metal 3 diamond mesh lath2 2 50 lbs.
Rib lath support spacing for metal lath adapted from astm c1063 table 3 types of lath nominal weight vertical spacing inches horizontal inches 1 per sq.
The language above clearly indicates that lath should be the last method attempted.
This is due to the vast differential movement between solid bases cmu concrete brick stone and metal lath and accessories.
Starting at the bottom of the wall the lath should be installed horizontally with the cups facing up to allow the lathe to catch and hold the scratch coat.
With a substrate of concrete or concrete masonry is it necessary to use lath.
Many products can be applied directly to poured concrete or concrete block walls but wood framed walls will require vapor barriers and metal lathe.
Stucco is made from the same materials as concrete and concrete masonry.
Use this 27 in.
Be sure to wrap all corners overlapping the metal lath at lease 4.
In addition the use of metal plaster base.
It is not necessary to use expanded metal lath on fiber cement board unless required by local building codes concrete exterior or interior wall.
Can be used as a plaster base and reinforcement on almost all types of walls and ceilings and over wood or steel framing.
Steel lath for both interior and exterior projects if you require an easily cut material that can conform to curved surfaces.
As such they have a great affinity for each other.
For example in renovation work new stucco over an existing stucco wall may require lath.
Portland cement adheres well to lots of.
Including cleaned and untreated concrete masonry or stucco.
Step 2 install galvanized metal lath if necessary install a 2 5 or 3 4 lbs self furring diamond metal lath that complies with astm c847.
Fiberglass lath does not rust and you can cut fiberglass lath with a pair of scissors.
When applying lath to the wall surface you must always fasten to the studs in the wall if going over drywall.
Walls and ceilings that use metal lath for the plaster base should be divided into rectangular panels with an expansion type control joint at least every 18 feet or at the juncture of a dissimilar wall or in either direction in a length to width ratio of 2 to 1 or in ceilings or walls.
Because the materials you plan to attach to the lath are so heavy you need to fasten the lath in a way that attaches it securely without movement separate from the wall s surface.
316 16 1212 12 3 40 lbs.
Using info found under lath fasteners section.
The large number of openings provide for a better stucco bonding.
Metal lath provides a mounting surface on concrete walls for materials that are too heavy to mount otherwise especially stucco or stone veneers.
Metal lath is regularly used over stud wall construction with or without sheathing materials.
It is very important to plan the layout of veneer pieces carefully.
Stop the metal lath 1 from finished edges.
