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| PLASTER TEXTURES |
The textures depicted in the plaster texture section can be achieved using field mixed, or proprietary packaged, stucco mixes. For best results, when applying over portland cement plaster, specify ASTM C926 specification for application of portland cement-based plaster over plaster reinforcing conforming to ASTM C847 specification for metal lath.
Depicted in this section are specimens of plaster textures, which are in most common use today. The term "plaster" is used generally to describe material prepared with either portland cement or gypsum. The term "stucco" used herein describes a factory-prepared, integrally colored finish which over the years, has come to be used to describe all colored portland cement finishes.
Each of the pictures shown herein was photographed from the same distance of approximately 4 feet and depicts a one square foot panel. Plaster, applied in a plastic state, may create a great variety of design configurations or texture patterns.
There are many reasons for this wide acceptance. Since it lasts the life of the building, redecoration is necessary only when a change in color is desired. Nevertheless, stucco is one of the most economical materials a builder can specify. Marblecrete, for example, produces a highly attractive surface at a fraction of exposed aggregate concrete's cost. The architect is limited only by his or her imagination in choice of texture treatments.
Designers, builders and contractors can pick from a wide variety of textures on the following pages. It is recommended that the contractor prepare samples before construction to insure that all parties agree on the finish to be produced. Color selection should be made at the time specifications are written. Special colors not included in the manufacturer's current color chart usually require an additional charge. Deeper colors call for additional pigment and are therefore higher price.
Textures illustrated aren't intended to show the whole range of possibilities. They are the most commonly used. Identifying names are those by which the texture is commonly referred to in the trade. It should be noted that a designer, contractor or journeymen may have different concepts of such terms as Spanish, Monterey or English. Suggested application procedures are included as general, abbreviated guidelines to the production of each texture. The textures shown can be used on either exteriors or interiors. Interior plaster is formulated with gypsum rather than cement. Generally speaking, heavier textures with deeper relief are used on the outside.
Mill-mixed colored stucco is produced under controlled conditions in modern plants to insure uniformity from batch to batch.
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