What Is The Common Name For The Synthetic Stucco Finish On The Outside?

Synthetic stucco, also known as Exterior Insulation and Finish Systems (EIFS), is a non-load bearing wall cladding system that provides enhanced insulation properties in multiple layers. It is used in commercial establishments and offers a modern, versatile option for exterior finishes. EIFS is distinguished by its acrylic-based composition, a wide range of colors, and enhanced properties like crack and water resistance.

Developed in Germany shortly after WWII, EIFS was used to retrofit masonry walls due to its continuous insulation properties. It is typically applied over conventional one-coat or two coat base systems of Sand and Cement (referred to as “scratch coat” and “brown coat systems”) that can be ½” to ¾” thick. One-coat stucco is a thick, synthetic stucco applied in a single layer, while traditional stucco is applied in three layers.

EIFS is a type of cladding that provides wall exteriors with an insulated finished surface. It has been in use in Europe since the 1950s and in the U.S. since the late 1960s. Stucco, also known as exterior insulation and finish systems (EIFS), is a common material assembly applied to the exterior of buildings as cladding.

Synthetic stucco/EIFS was designed as a “barrier system”, meaning that its success depends on no moisture getting into the building envelope. As it grows in popularity, understanding the full spectrum of its pros and cons is essential for architects and building designers to create unique aesthetics.

What is the most common stucco finish?

The lace texture is the most common stucco finish found on homes, hiding imperfections and providing visual appeal. It can be either “heavy” or “light”, with the latter having a finer texture on the top coat. The dash texture is a rough stucco finish with small peaks sticking out, applied light, medium, or heavy in volume, and can be sprayed on for a unique look. Both textures are suitable for residential and commercial applications.

What finish for exterior stucco?

Stucco wall paints come in various sheen types, including flat, eggshell, gloss, satin, and semi-gloss. The flat sheen is typically preferred as it enhances the natural texture of the wall. Different paint types require different number of coats, with elastomeric paint requiring more coats due to increased weight and drying time. Painting stucco is not just for aesthetics; it protects the surface from moisture, weather, scratches, and cracks, ensuring its longevity.

There are three types of paint for stucco: acrylic, elastomeric, and masonry. Each type has its pros and cons, and considering other paint characteristics, such as the sheen type, is crucial when making a decision.

What is a synthetic stucco called?

Synthetic Stucco (EIFS), also known as exterior insulation and finish systems, was first used in Europe in the early 1960s for its insulation and weather protection properties. It is made of three layered components: insulation board, base coat, and finish coat. EIFS was successful in Europe due to its insulation and weather protection properties, as well as its compatibility with masonry walls in European buildings.

In the US, wood or gypsum is used, which requires a good moisture barrier for proper installation. The base coat materials used in Europe were slightly different from those used in the US, allowing for more flexibility and better waterproofing.

In the early 1970s, Dryvit Systems introduced EIFS to the American construction market, where it became popular due to its energy efficiency qualities. However, the company’s introduction led to common practices of cutting corners in EIFS installation, resulting in extensive water damage and expensive repairs due to mold, dry rot, and structural damage. EIFS affected homeowners were angry about the unplanned expense, while frustrated homebuyers faced limited buying options due to structurally questionable properties in the housing market.

What is stucco exterior?

Stucco is a cement-based mixture of Portland cement, lime, sand, and water used as a thin finish coat on residential and commercial constructions. It is highly durable, with warranties extending up to 20 years. There are three types of stucco systems: Portland cement, sand, fibers, chemicals, and water, which requires a single application and is typically applied over rigid foam board and lath for a durable siding.

What does EIFS mean in stucco?

Exterior Insulation Finishing Systems (EIFS), also known as synthetic stucco, are a type of cladding that provides an insulated finished surface for wall exteriors. They are applied multiple layers over exterior sheathing, creating energy-efficient, fire-resistant, low-maintenance, beautiful, and versatile exterior cladding. Over the years, EIFS has seen significant improvements, including moisture resistance and retention mandated by the EIMA and ICBO.

What is the most common type of EIFS system?

EIFS is a type of insulation that is commonly used in building construction. The most common type is the polymer based (PB) system, which has a 1/16 inch thick reinforced base coat applied to the insulation before the finish coat. The insulation is typically closed expanded polystyrene (EPS) and can be either adhesively or mechanically attached to the sheathing. The second and less common type is the polymer modified (PM) system, which has a 3/16 inch to 1/2 inch thick reinforced base coat applied to the insulation.

EIFS is available in two basic types: a barrier wall system and a wall drainage system. Barrier EIFS wall systems rely on the base coat portion of the exterior skin to resist water penetration, while wall drainage systems are installed over a weather barrier behind the insulation that acts as a secondary drainage plane. All EIFS are proprietary systems and should not be modified beyond the limits stated in the manufacturer’s literature. The wall designer is responsible for designing the interface with other components of the wall system, and details should clearly outline the design of the final construction.

What is the name of a stucco finish?

Stucco textures may be classified according to their method of application, including smooth, sanded, sprayed cement, Spanish lace, tex coating, and synthetic. The aforementioned textures exhibit a range of workmanship, which affects the visual presentation and the probability of concealing repairs without creating the impression of an artificial finish. The quality of the original stucco workmanship affects the ease with which it can be patched and painted. In the case of poor workmanship, the process is likely to be more challenging and time-consuming. The advantages of this approach include the perception of elegance.

How do you identify EIFS?

In order to ascertain whether your residence is constructed with EIFS, it is recommended that you knock on the outer “stucco” wall. If the sound is hollow, this is a probable indication that your home is constructed with EIFS. If the material in question has a texture similar to that of a brick wall, it is more likely to be traditional “hard-coat” stucco.

What is the most common exterior finish?

The most prevalent exterior finish types in the United States are siding, stucco, and brick veneer.

What is exterior finish?

Exterior finishes are the materials or cladding that protect the exterior of a house or building, including ornamental and decorative finishes that enhance the visual appeal of the building’s surfaces. They also provide a protective cladding that shields the building components from environmental factors like heat, wind, moisture, and frost. The choice of exterior siding should not be solely based on curb appeal, but also on how the material performs in specific environments.

The maintenance requirements and longevity of different exterior finishes vary, especially in relation to different climates and weather patterns. Researching the desired cladding type is crucial as it significantly impacts the architectural style, durability, and maintenance requirements of a home or commercial building.

What is the traditional finish for stucco?

Traditional stucco is a rigid exterior finish made from cement, lime, sand, and water, suitable for one or three coat applications. It offers a range of textures and color additives and is less expensive than acrylic stucco. It is easier to apply and requires additional layers of mud stands, wire mesh underlay, and boards to adhere. However, it requires future maintenance due to its proneness to cracking and weather damage.

Cement stucco can have color variations due to the amount of water used in the mixture and is generally more muted than acrylic. Hard coat stucco will fade over time and require more frequent repainting.