What is the difference between stucco and EIFS?

What is EIFS? Unlike traditional stucco that utilizes natural ingredients and mesh, External Insulation and Finishing Systems (EIFS) stucco uses layers that add in synthetic materials. The first layer is comprised of a polystyrene foam board. Then, that is followed by a fiberglass mesh and a finishing coat.

Is hard coat stucco EIFS?

Go outside and knock on an outer “stucco” wall of your home. If it sounds hollow, there is a good chance you have EIFS. If it feels like you are knocking on a brick wall, it is more likely that you are knocking on traditional “hard-coat” stucco.

What is hard coat stucco?

Also called “Hard Coat Stucco” and “Exterior Plaster” Definition: “An exterior finish composed of some combination of Portland cement, lime, and sand, which are mixed with water, which dries to a very hard textured finish” [1]

Is EIFS and synthetic stucco the same?

EIFS stucco refers to Exterior Insulation and Finish System, also called synthetic stucco. It’s made of acrylic and applied in several 1/8” layers over polystyrene or some other insulation board on top of plywood or some other exterior sheathing.

When did builders stop using EIFS?

Future homeowners loved the look of the EIFS houses. The recession of 1990 was the only thing that slowed down the business as the EIFS industry’s sales dropped for the first time in 1991.

Is EIFS cheaper than stucco?

Synthetic EIFS stucco is slightly more energy-efficient than old-school hard-coat stucco, offering better insulation, though it’s more complicated and expensive to install. Hard-coat stucco holds up better to water, making it a good choice for areas with plenty of moisture.

How do you tell if your house is EIFS?

The easiest way to identify synthetic stucco (EIFS) is by touching the material with your bare hand. When you touch the wall where the stucco is installed, it will feel like plastic. You can also knock gently on the wall. If it sounds hollow and thin, you have EIFS on your home.

Is EIFS stucco still used?

Yet today, EIFS are still around. About 100 million square feet of EIFS went on new and remodeled homes last year, rivaling any other siding material.

Why do insurance companies not like EIFS?

A great deal of insurance coverage disputes arose over the years due to the tendency of EIFS to trap water behind a building’s walls. As a result, many insurers implemented an EIFS exclusion in commercial general liability policies barring coverage for property damage that results when EIFS is used in construction.