What is EIFS made of?

EIFS is a lightweight synthetic wall cladding that includes foam plastic insulation and thin synthetic coatings.

The problems with barrier EIFS cladding all stem from water intrusion. These problems include moisture accumulation in the wall cavity, subsequent wood damage and, in more advanced cases, mold growth and the infestation of pests such as carpenter ants or termites.

Furthermore, is EIFS considered masonry? EIFS on Masonry. Exterior Insulation and Finish System (EIFS) is an exterior wall coating system that resembles stucco. It incorporates a substrate covered with a foam insulation board, a reinforcing mesh, a base coat, and a finish coat of synthetic stucco material applied to a masonry wall.

In this regard, when did they stop using EIFS?

By the mid-1980s, EIFS was commonly found in most mid- to upper-priced residential developments throughout the country. But the business rebounded in 1992 and the EIFS residential business continued to grow—that is until it ran into the perfect storm.

Which is better EIFS or stucco?

A traditional hard-coat stucco exterior system is extremely strong and durable because it essentially covers your home with a layer of rock. Barrier EIFS on the other hand, uses a multi-layer “synthetic” stucco that is much softer than traditional stucco.

Does EIFS crack?

Some EIFS laminas crack sooner than others, but they all eventually crack. The cracks are due to hygric and thermal stresses, embrittlement due to aging, and building movement. The cracks in EIFS laminas are often found initially at reveals and at window openings.

How long does EIFS last?

A. Dryvit EIFS are designed to last for the typical design life of a building. The actual longevity on any specific building will depend mainly on the building maintenance program. Some EIFS facades date back 50-60 years.

How do you maintain EIFS?

In many cases, the soiled surface can be cleaned with low-pressure cool water, mild cleaning detergents and a soft bristle brush. EIFS are designed to be highly flexible, which makes them exceptionally resistant to the cracking problems that are all too common with stucco, concrete and brick exteriors.

What is the difference between Dryvit and EIFS?

Having a house with EIFS, also known as Dryvit, isn’t the end of the world. EIFS isn’t a disease; it’s synthetic stucco. And even though your house may have been built using it, with knowledge and proper maintenance everything can be just fine. EIFS is an Exterior Insulation and Finish System.

Should you paint EIFS?

EIFS buildings should not be painted like most surfaces. EIFS surface is an elastomeric or silicone-based coating; regular latex paint will not adhere properly and peeling may result. Some coatings can substantially change the water vapor transmission characteristics of the EIFS and trap moisture inside.

What does EIFS stand for?

Exterior insulation and finish system

Is EIFS flammable?

Although the completed EIFS system looks like noncombustible stucco, it is combustible. The label on a pallet of EIFS EPS board in photo 3 says “Flame spread rating: 25 or less, per ASTM E84…This insulation board is combustible. Keep away from open flame, welding, and other heat sources.

Is EIFS waterproof?

Exterior insulation and finish systems (EIFS) are proprietary wall cladding assemblies that combine rigid insulation board with a water-resistant exterior coating. Popular chiefly for their low cost and high insulating values, they are used on a range of construction types, from hotels to offices to homes.

Can EIFS be repaired?

Strip the EIFS or repair it; that is the question. The answer is quite simple, and applies to virtually all types of cladding. EIFS is not a cladding the average homeowner can repair, and many EIFS repair contractors have not been trained in the forensics and repair.

How much does it cost to repair EIFS?

Nationally, contractors charge anywhere from $40 to $50 per hour to repair stucco, or from $60 to $120 per square foot. The two main reasons for these costs are the complexity of the repair and the fact that it takes time, as it involves waiting for each coat to cure before proceeding to the next step.

How do you know if you have EIFS on stucco?

Go outside and knock on the material. If it has a hollow sound, it likely is EIFS. This is because the sound travels through the Styrofoam base, hits the wall behind it and then reverberates back. With stucco, it should feel like knocking on stone.

Does EIFS require control joints?

Reveals in EIFS are strictly aesthetic and are used to provide convenient stopping points for finish application in large wall areas. If movement relief is necessary, a full expansion joint with sealant is necessary. The term “control joint” is not used in the EIFS industry.

How do you pronounce EIFS?

With Urea Formaldehyde Foam Insulation, most of us pronounce it “you-fee” but some insisted on “u-fee.” In Canada “e-fiss” appears to be the preferred pronunciation for EIFS. So now we can say it, but what is EIFS and why do we care? EIFS stands for Exterior Insulating and Finishing Systems.