How is EIFS applied?

EIFS are typically attached to the outside face of exterior walls with an adhesive (cementitious or acrylic based) or mechanical fasteners. Adhesives are commonly used to attach EIFS to gypsum board, cement board, or concrete substrates.

How are EIFS installed?

EIFS may be attached by mechanical fasteners (as shown) or by adhesive (as shown below). EIFS attached to concrete or masonry using adhesive. Mechanical fasteners may also be used. The Expanded Polystyrene Board (EPS) is placed on the wall in a running-bond pattern.

How does EIFS system work?

An Exterior Insulation Finishing System (EIFS), also known as EWI (Exterior Wall Insulation Systems) or External Thermal Insulation Composite Systems (ETICS) is a type of cladding system that provides exterior walls with an insulated finished surface and waterproofing in an integrated composite material system.

What is the problem with EIFS?

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.

Can you install EIFS over stucco?

Substrates. StoTherm EIFS can be installed over the glass-mat gypsum sheathing, wood-based sheathing, plywood, oriented strand board (OSB), masonry, plaster, concrete or stucco. The key element of EIFS is to ensure there is no moisture accumulation not contaminants within the systems.

Exterior Insulation Finish System (EIFS)

What is better EIFS or stucco?

The fiberglass layer provides more durability, even against hard blows from weather. EIFS is notably lighter than traditional stucco, however. It is 80-percent less heavy than stucco, but it has a higher R-value, coming in between 4 and 5.6, which is notably higher than the 0.20 R-value of regular stucco.

Can EIFS be removed?

Since it is adhesively attached, EIFS can be removed and replaced with little damage to the existing structure. In most cases where moisture intrusion has occurred, only the affected areas need attention.

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 thick is EIFS coating?

The total thickness of EIFS “Lamina” is generally 1/16” to 1/8” but can be thicker in areas of high-impact, by using high impact resistant mesh. Similar to stucco it is important to follow a proper design by a registered design professional or the EIFS manufacturer.

What is the EFIS system?

An Electronic Flight Instrument System (EFIS) is a flight deck instrument display system in which the display technology used is electronic rather than electromechanical. Early EFIS systems portray information using cathode ray tube (CRT) technology.

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.

When was EIFS last used?

EIFS has been in use since the 1960s in North America, first on masonry buildings, but since the 1990s the majority on wood-framed buildings.

Why should barrier wall EIFS be avoided?

MOISTURE ISSUES

The barrier in any EIF system is the basecoat and mesh layer. This layer will not allow the penetration of moisture and functions as the moisture-intrusion-preventing workhorse of the system.

What are the layers of EIFS?

The most basic EIFS (a barrier EIFS) consists of 3 layers: A layer of foam plastic insulation; a reinforced layer that is applied onto the face of the insulation with a trowel, consisting of a fiberglass reinforcing mesh embedded in a cementitous adhesive; and, a final topcoat, or finish, which is a colored, textured ...

What is EIFS wall system?

Exterior Insulation and Finish System (EIFS) is an exterior wall cladding that utilizes rigid insulation boards on the exterior of the wall sheathing with a plaster appearance exterior skin. EIFS in its current basic form was developed in West Germany in the 1960s and introduced in the United States in 1969 by Dryvit.

What does EFIS look like?

The finish coat on a EFIS synthetic stucco system often looks like traditional stucco but is only about 1/16 of an inch thick: the entire EFIS wall system assembly itself will range between 1 to 4 inches thick including, the foam board and the finish coat.

Can you pressure wash EIFS?

The best way to clean EIFS is to use high water volume coupled with low water pressure and non-abrasive cleaners. Do not use caustic chemicals or abrasive cleaning techniques, which will permanently damage the finish.

Can you recoat EIFS?

Introduction The appearance of EIFS walls can be quickly refreshed by applying an appropriate coating. BASF COLOR COAT is specifically formulated for EIFS. This 100% acrylic coating minimizes changes to existing finishes.

How often should EIFS be painted?

What type of maintenance is required for EIFS? Unlike wood, stucco and other siding materials, EIFS rarely need painting. Most EIFS systems are specifically formulated with 100% acrylic binder, which gives EIFS superior resistance to fading, chalking and yellowing.

What can I replace EIFS with?

EIFS Replacement Options: To replace existing EIFS most of our clients choose Hardieplank, or cedar siding with Cultured Stone accents.

Can you cover EIFS with siding?

If you are ready to replace one of these systems, fiber cement siding manufactured by the James Hardie company is the best choice for the job. One of the major perks of using fiber cement siding boards is that their trim can easily be installed over built-out sections of EIFS-covered exteriors.

Is Dryvit the same as stucco?

Dryvit stucco is actually the name of a stucco manufacturer, not an actual stucco system specifically. Dryvit is the name of the stucco company and they have different stucco systems including 3 coat stucco systems, EIFS systems, decorative systems and more.