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peace of mind in knowing your next stucco or plastering project is in the hands of professionals Lime plaster is a mixture of calcium hydroxide and sand (or other inert fillers). Carbon dioxide in the atmosphere causes the plaster to set by transforming the calcium hydroxide into calcium carbonate (limestone). Whitewash is based on the same chemistry. To make lime plaster, Limestone (calcium carbonate) is heated to produce quicklime (calcium oxide). Water is then added to produce slaked lime (calcium hydroxide), which is sold as a white powder. Additional water is added to form a paste prior to use. The paste may be stored in air-tight containers. Once exposed to the atmosphere, the calcium hydroxide turns back into limestone, causing the plaster to set. Lime plaster was a common building material for wall surfaces in a process known as lath and plaster, whereby a series of wooden strips on a studwork frame was covered with a semi-dry plaster that hardened into a surface. The plaster used in most lath and plaster construction was mainly lime plaster, with a cure time of about a month. To stabilize the lime plaster during curing, small amounts of Plaster of Paris were incorporated into the mix. Because Plaster of Paris sets quickly, "retardants" were used to slow setting time enough to allow workers to mix large working quantities of lime putty plaster. A modern form of this method uses expanded metal mesh over wood or metal structures, which allows a great freedom of design as it is adaptable to both simple and compound curves. Today this building method has been partly replaced with drywall, also composed mostly of gypsum plaster. In both these methods a primary advantage of the material is that it is resistant to a fire within a room and so can assist in reducing or eliminating structural damage or destruction provided the fire is promptly extinguished.

How EIFS is installed

EIFS is attached to the outside face of exterior walls with an adhesive (cementicious or acrylic based), it should never be attached by using mechanical fasteners such as nails, screws, etc. unless using on a foam shape sometimes called "popouts" or "trim band". Mechanical fasteners can cause virtually unsealable holes in the system, thus making it impossible to be water proof. The supporting wall surface is continuous (not "open framing") and flat, and can be a solid material, or some type of sheathing that is attached to studs. The surface to which an EIFS is applied is called the substrate. Common substrates include concrete, cinder block, brick, cement board sheathing, Dens Glass Gold, USG Securock, exterior grade gypsum sheathing, glass fiber-faced gypsum sheathing, oriented-strand board (OSB), and plywood.[citation needed] EIFS is usually installed at the construction site by hand by independent professional plastering contractors; EIFS producers do not install EIFS products. EIFS is not a do-it-yourself product - it is not sold through retail stores. EIFS can also be made as panels. The panels are made in a factory and have a lightweight welded metal subframe. When completed they are trucked to the building site, raised with a crane, and attached to the building frame.