While EIFS and Stucco share the same sleek appearance, they are very different from each other. One consists of two layers and has a longer lifespan, and the second, although it is multi-layered, is not as sturdy. To the untrained eye, these two appear to be one and the same. However, with some training, one can learn to tell EIFS and Stucco apart. Here are three of the key differences between stucco and EIFS.

Materials

A traditional hard-coat stucco exterior system is extremely strong and durable. It essentially covers your home with a layer of rock. Cement stucco is made of sand, a small quantity of lime, cement and water. The stucco’s facade is meant to be a primary barrier, but a secondary or “concealed” barrier directs any water that gets behind the facade to the exterior. This creates a dual barrier to wind-driven rain, snow and ice. EIFS on the other hand, uses a multi-layer “synthetic” stucco that is much softer than traditional stucco.

Breathability

While it has the appearance of stucco and is installed similarly, EIFS has some very different properties. One of the most important differences is that barrier EIFS will not allow water to pass back through its coating in vapor form once moisture gets behind the system. By contrast, traditional stucco is a porous material. Therefore, it will permit moisture to move both in and out of the wall cavity.

Installation

Barrier EIFS is comprised of a base coat and finish coat applied over an EPS board that is attached directly to the sheathing using fasteners or an adhesive. The system provides no avenue for water to drain out once it penetrates behind the EPS board. Traditional stucco, on the other hand, is applied over a wire mesh, and installed with standoffs that allow space behind the stucco for “weeping” of water. No EPS or Styrofoam board is used in a traditional stucco exterior.

Paint Your Stucco or EIFS with CertaPro

Whether you have true stucco or EIFS, your exterior will eventually need a fresh coat of paint. The local painters at CertaPro Painters® of Rockville/Potomac will paint both of these materials. We have helped homeowners throughout Maryland get the paint job of their dreams––just check out our portfolio! To get started on your project, you can call our team members or fill out our free, no-obligation form. We look forward to working with you!