Expanded metal lath that is over-fastened to the substrate will restrict the passing of plaster through the diamond-shaped openings in the lath, negatively impacting embedment, especially at the edge joints and laps. These openings range in size but are approximately 3/8 inch by 1/2 inch in length and width.ĭiamond mesh lath manufacturers engineer their sheet products to achieve these specified weights. Lath Types and Their Embedment Performanceĭiamond Mesh Lath: ASTM C847: Standard Specification of Metal Lath defines sheet lath by weight, expressed in lbs./square yard, and the size of the diamond openings is not standardized. This type of corrosion, resulting from lack of embedment, can stay on the wall for many years and then finally, “give away” from a storm or wind event. The result is lath corrosion and potential stucco failure. If not dried out, oxidation begins and the 3 mils of zinc coating protecting the expanded metal lath begins to sacrifice, eventually eroding the zinc to expose the carbon steel. As wind-driven rain and vapor drives force moisture through the plaster to the weather barrier, vapor condenses adjacent to the bare lath. If the plaster scratch-coat sits on top of the diamond lath, the back side of lath is minimally covered and exposed. The better the lath embedment, the less likely it will oxidize and eventually rust under the stucco cladding. If the moisture persists and plaster cannot dry out, its presence could result in a premature failure of the lath. In some cases, incidental moisture that may enter the plaster matrix can cause rusting and corrosion of the metal lath material if plaster is not allowed to dry out. Look for wall plaster mesh expanded metal lath via our search tools and benefit from affordable prices for any mesh products.Stress-cracking often seen in corners can be caused by poor embedment, or omission of control joints placed for stucco membrane movement.Ĭorrosion is another risk resulting from improper stucco embedment. Whether you're building homes or filtering minerals, find the steel mesh you need at Alibaba. Mesh is a useful alternative to rebar, being easier to deploy and faster to use, and it's especially handy for thinner surfaces like walls. These meshes can be ordered wholesale from our industrial partners and play a key role in strengthening concrete. Find the right wall plaster mesh expanded metal lath and solve whatever mesh-related problems you encounter.Īlibaba also stocks specialized steel wire mesh products for the construction industry. And looser mesh can be placed over light sources to offer protection, while it's always a good option for fences indoors and out. It can be incorporated into air purifiers, using very fine mesh to remove dust and dirt from factory air. Build animal cages, create specific filtration equipment for industry, or form sieves for baking. And those rolls can be customized to suit any project. You can order bulk batches of tight and loose mesh, hexagonal mesh and diamond patterned designs. ![]() ![]() Our steel wire mesh listings include rolls or any other style at affordable prices. Just search Alibaba's wholesale mesh catalog to find exactly what you need in seconds. And if you need new wall plaster mesh expanded metal lath, sourcing the products you require is simple. Everywhere you look, steel wire mesh is making a difference. It's used in cable management baskets and trays, as well as home and agricultural fences. It's found in the cages that keep livestock protected from predators, the screens that protect cashiers in banks and it reinforces security windows. Steel wire mesh has a vast array of potential uses.
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