EIFS stucco is a type of stucco wall covering that seems on the outside to be a standard stucco installation with an acrylic finish. Still, when the inner layers are dissected, it differs from a hard coat stucco system.
EIFS is a wall system that combines many layers of different goods to create a complete wall system with unique qualities such as more excellent water resistance and higher air barriers.
Some of the standard layers are a water/air barrier, an adhesive basecoat, foam, a base coat embedded in a fiberglass mesh, a priming coat (sometimes optional), and a finish coat.
Explaining EIFS Stucco
Let’s take a closer look at some of the components of an EIFS cladding system to better understand what they are, what they are made up of, and how they differ from a rigid finish stucco system.
Water Resistive Barrier (WRB): This is not always a required component of EIFS cladding, but it is usually added as a “premium system” to increase the wall’s water resistance.
Fluid Applied WRBs: These are fluid-applied substance (like paint) that is often rolled/brushed on or sprayed on and has a thickness of roughly 20 mils.
There can’t be any pinholes in this coat because it’s the main waterproofing layer, and any holes would allow water to seep in and become trapped.
Adhesive Coat: The foam is adhered using an adhesive that is typically troweled on with a notched trowel, with the notches running vertically (up and down).
An adhesive is not required for all EIFS claddings; in some instances, the foam is mechanically bonded to the wall, and no glue is needed.
Foam Insulating Board: The foam functions as a main insulator for the wall and can be purchased in various thicknesses (ranging from 1″ to 6″), with the thicker the foam, the higher the R-Value of your walls.
Mesh and Base Coat: In an EIFS cladding, they are usually two separate steps. They are typically done together and are effectively one step because the base coat MUST be embedded into the mesh.
Primer Coat: The primer coat is exactly what it sounds like… a coat of paint applied before the finish is done.
The Finish Coat: The finish coat is the final coat to apply, and it is what will be visible on the outside of the structure, so it must be beautiful!
How do EIFS and traditional stucco differ?
The substrate, a polystyrene foam board, fastened/glued to the substrate, fiberglass reinforcing mesh, a basecoat (typically 1/16 to 1/4 inch thick), and a finish coat is all part of the conventional EIFS installation.
Stucco, on the other hand, is a portland cement-based plaster. The stucco assembly typically consists of a moisture-resistant substrate over the frame members, self-furring metal lath, cement plaster basecoat, and a hard-coat finish. Both methods have benefits and drawbacks.
Where can I find EIFS Stucco
More Home improvements
It’s best to look for early spring blooms for your home improvements to signify that warmer weather is on its way. A burst of color is provided by these bulbs and perennials.
Although spring weather might be erratic, spring flowers are resilient enough to weather the storms that come with it. As soon as the ground starts to thaw, you can begin to see the first indications of spring in your garden. A wide selection of early spring bloomers can be planted outside before the first hint of cold has set in. Some people need a little more attention when they first start out. The optimum time to plant them is in the early spring, so don’t wait too long.
You’ll know it’s time to get back to work in your garden as soon as you see these beauties!