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Show C Many Metal Lath Types Individually Effective Metal lath, which of late years has been given wide acceptance in quality qual-ity construction, because of its fire-resistance, fire-resistance, plaster protection, ease of installation and adaptability to decorative deco-rative requirements, is made in a variety va-riety of types for use at various points about the home. The main division in metal latli manufacture is between the expanded and the wire types. Expanded metal lath is - made from a piece of steel which is punched in such a pattern that when the two sides of the sheet are pulled outward series of keys are formed in the metal, these forming the bond for plaster. Various weights and sizes of the lath are made, and galvanizing gal-vanizing or other protective processes nre given to the sheets to eliminate rust. The wire type of metal lath is also made in various weights for exterior and interior use. Cross joints of the wires are usually spot welded. Treated Treat-ed paper backing in some types guards against plaster falling behind the lafji and automatically back-plasters it. The paper backing also affords insulating value. While both expanded and wire types are in general use, the expanded type has of late years received wider usage than the wire type. For particular locations metal lath In strips and other forms expedites work and is a valuable adjunct to wood lath. Cornerite, corner bead. Invisible picture molding, steel window win-dow and door casings with strips of metal lath attached, and other special types are coming into wide usage. |