How to Use a Metal Lath Properly with Stucco

What You'll Need
Moisture Proof Barrier
Roofing Nails
Furring Strips
Shears or Circular Saw

When it comes to using a metal lath correctly with stucco, then there are a few different things that you will need to keep in mind. The first thing that you will need to do is make sure that you understand the steps that are necessary so that you will be able to do the job correctly and easily. Many people will go into this task without first preparing and getting the necessary tools and it will only end up making the task much harder than it should be.

Step 1 – Prepare

The first thing that you are going to have to do to make sure that you are ready for the job is to get your moisture proof barrier installed. This is something that you will apply directly to your wood sheathing. With this barrier, you will be able to no longer have to worry about wood decay. Wood decay is something that will happen whenever there is wet concrete or plaster that is applied to the area. It is a good idea for you to check the building codes in your area so that you can get the correct type of material for the barrier.

Step 2 – Apply Beads and Edges

Once you have your moisture barrier where it needs to go you will then be able to begin work on installing your casing beads, weep edges and corner beads. You will also need to make sure that you install your expansion joints as well. Whenever you are applying your lath accessories you will need to make sure that you either staple or nail them into place about every foot and a half. If the type of lath that you are using is not self furring, then make sure that you have furring strips that are nailed into place once everything else has been applied.

Step 3 – Hang Horizontal

You will need to make sure that your metal lath is hung horizontally. The joints that are made between each of your panels need to be laid in a type of a brick pattern. The seam that you use between your first and second panels that go on the bottom of your wall need to fall right in the middle of your panel. You will then put them directly above them immediately following this.

Step 4 – Apply Mesh

Your metal lath that is expanded will come with a mesh that is diamond shaped. For you to be able to have a proper holding base for your plaster or stucco, the pockets that are formed by your mesh need to face up. The mesh that you are using needs to feel rough whenever your run your hand down it and smooth when you run your hand up it.

Step 5 – Finish up

Make sure that you attach the lath with roofing nails that are 16 inches. Cut your lath with shears, a circular saw will be necessary for a bigger job.