STUCCO, EIFS & PLASTER
EIFS AND STUCCO WALL SYSTEMS FOR RESIDENTIAL AND COMMERCIAL CONSTRUCTION
STRENGTH & BEAUTY – Traditional stucco provides a tough exterior that resists attack — from woodpeckers to weed wackers, to grocery carts. That inherent toughness is beautifully complemented by the variety of colors and textures available. Whether it’s your business or your home, appearance is an important consideration in selecting a wall cladding.
• VERSATILITY OF DESIGN & AESTHETIC APPEAL – Aesthetic appeal and versatility of design have for centuries captured the imagination of architects and builders. Portland cement plaster (stucco) has inspired designers to new levels of artistic expression in a variety of building projects — used alone or in combination with other traditional building materials such as stone, brick or wood. Portland cement plaster can be applied to most flat or curved surfaces, inside or outside in any structure or building, lending itself to innovative and creative solutions. Any project can be individualized.
• COLOR & TEXTURE – The finish possibilities are infinite. Stucco is unique among the decorative finishing materials. It can be used to provide highlights, depth and continuity. A nearly unlimited palette of colors that never need painting is available to provide a uniform, maintenance-free finish for your most lavish designs. Imagination is the only limitation.
• APPLICATION – Stucco is applied either by hand or machine to exterior and interior wall surfaces. It may be applied directly to a solid base such as masonry or concrete walls, or it can be applied to metal lath attached to frame construction, solid masonry, or concrete construction. Applied to metal lath, three coats form a 7/8-inch total thickness. A vapor-permeable, water-resistant building paper separates the plaster and lath from water-sensitive sheathing or framing. Cementitious stucco has high impact resistance and sheds water, but it also breathes, allowing water vapor to escape. It is a proven system that works in all climates.
• LONG-TERM VALUE – Portland cement plaster is the most inexpensive wall finish by far. Its proven long-term value has been time tested and well documented. Stucco is the most durable and long-lasting wall finish providing years of maintenance-free beauty. Stucco is also easy and inexpensive to repair. Re-stucco of existing buildings easily allows change to the appearance of color and texture, giving new character and variety to old buildings.
E.I.F.S. (Exterior Insulation Finish Systems)
The growing popularity of EIFS is due to the fact that few, if any, competitive materials offer such a wide range of desirable product benefits. Chief among these are superior energy efficiency and virtually unlimited design flexibility.
• ENERGY EFFICIENCY – If you’ve ever felt the comfort of being wrapped in a warm blanket on a cold winter night, you have some idea of what EIFS can do for a home or building.EIFS literally wrap the exterior in an energy-efficient thermal blanket. By insulating outside the structure, EIFS reduce air infiltration, stabilize the interior environment and reduce energy consumption.By contrast, traditional “between-the-studs” insulation, no matter how thick, leaves “thermal breaks” — gaps where heat and cold pass more freely between the outdoors and the space within — at studs, wall outlets, wall joints, and elsewhere.
In fact, EIFS can reduce air infiltration by as much as 55% compared to standard brick or wood construction. And since walls are one of the greatest areas of heat and air conditioning loss, improvement in the wall insulation can be very meaningful in terms of energy conservation.What’s more, EIFS add to the “R-value” of a home or building. (R-value is a measurement of the resistance to heat flow; the higher the R-value, the better the material’s insulating value.) Most EIFS use insulation board with an R-value of R-4 to R-5.6 per inch as the innermost layer in the wall system. When combined with standard wall cavity insulation, this extra layer can boost wall insulation from R-11 to R-16 or more.
Another point to keep in mind on new construction: Due to the energy efficiency of EIFS, it may be possible to specify lower-capacity heating and air conditioning equipment without sacrificing anything in terms of interior comfort.- View more
• DESIGN FLEXABILITY – The rich appearance of EIFS bears a resemblance to stucco or stone, but the systems are far more versatile than these and other materials. Not only do EIFS come in virtually limitless colors and a wide variety of textures, but they also can be fashioned into virtually any shape or design.
With EIFS, skilled applicators can create all sorts of exterior architectural detailing that would often be cost-prohibitive using conventional construction — cornices, arches, columns, keystones, cornerstones, special moldings and decorative accents are but a few examples.
Most of this detailing is computer-generated. The designs are precision-cut out of insulation board, attached to the substrate or wall, then covered with the EIFS base coat, mesh and finish coat. Using this ingenious process, EIFS applicators can give a striking, distinctive appearance to any building or residence.
• What is decorative plaster?Italian decorative plaster is generally a thin veneer of slaked lime putty mixed with marble, quartz or kaolin, and colored with pigment. The plaster is applied in a variety of ways to produce elegantly mottled wall and ceiling treatments especially those found in what is now northern Italy.
• History of Venetian Plaster – Lime plaster is among the oldest building materials known to humankind; there is evidence of its use dating as far back as 9,500 years in the area of present-day Jordan. Later the Romans were known to use it mixed with marble dust as a fine application over a coarser lime and sand aggregate, not dissimilar to the technique used today by us. Continued use of slaked lime putty existed throughout the middle ages. Documented evidence of the Mantovano finish, resurrected by, and now reliably produced only by the Safra Co. of Villa Franca, Italy, dates to circa 1100AD. During the Renaissance in the mid 16 th century the Marmorino finish was reintroduced in Venice largely due to the efforts of Andrea Palladio and used externally over civil plaster masonry. By the 17th century many types of interior plasters flourished, the most notable is the highly polished Stucco Veneziano found in the palaces and Villas of 16th and 17th century Most Serene Republic of Venice.
• Nomenclatureof Italian Plasters – There is no standardized naming system applied to the manufacturing of Italian decorative plasters. Names may refer to composition, style, or may be merely branding, or some combination of the three. Further confusion comes from the vernacular use of the term “Venetian” to refer to any and all types and techniques of decorative plaster work.
• In the USA, Venetian plaster includes both pure slaked lime, and lime plasters modified with acrylic polymers. The modified plasters tend to be very durable but one should beware some “Venetians” available at large discount home improvement stores or paint stores as these may have little to do with actual Italian plaster. In some cases the product may have no lime or marble whatsoever, and even the term plaster may be a misnomer. In Italy, Venetian or Stucco Veneziano is one particular kind of plaster and application technique only. No true Italian plaster requires wax or sealer for reasons other than embellishment.