Attachment of metal plaster bases to masonryconcrete. Small batches require less soaking than large batches. The result will be an attractive stucco finish having the toughness and durability of concrete. Plasterers manual for applying portland cement stucco and. Portland cement plaster stucco manual, eb049 portland cement associa on, 5420 old orchard rd. However, exterior plaster does not have to be stucco. Astm c 926 standard specification for application of portland cementbased plaster. Exterior portland cement plasterwork stucco on metal lath plaster bases.
Stucco is a cement plaster that you have most likely seen before just have not recognized it as stucco. It is intended as an authoritative reference manual for architects, specifiers, building officials, inspectors. We are here to shatter all rumors and inform you that yes, there is a difference. Plaster or stucco on concrete, cement plaster or stucco on concrete, cement although concrete in the past has usually been regarded as having an infinite service life, it is now very apparent that it can be very vulnerable to atmospheric conditions. Portland cementbased plaster and stucco specifications.
Stucco isthecommonlyusednametodescribethecode compliant78inchportlandcementmembraneusedtoclad avarietyofbuildings. Stuccoing systems stucco can be applied as a threecoat, twocoat, or onecoat system. The terms stucco and portland cementbased plaster are often used interchangeably in the trade. The stucco manufacturers association sma guide specification for 3coat portland cement plaster stucco applied to framed walls 22017 introduction. In conclusion, portland cement stucco, a longlasting, lowmaintenance, longused, resistanttomany architectural plaster, is a mixture of.
Eifs consists of a foam insulation board covered with a special synthetic finish. Sep 20, 2016 the time old question of plaster vs stucco and is there a difference. The stucco manufacturers association sma is a non profit association formed in 1957 to promote best practices for cement plastering stucco. It is more commonly used on large commercial projects. You might have read the snapshot of this discussion in our monthly newsletter but we. Since no data on relative market shares of portland cement and masonry cement stucco were available, life cycle data for. The stucco manufacturers association sma is a nonprofit association formed in 1957 to promote best practices for. Pca portland cement association plaster stucco manual. Exterior portland cement plaster stucco application framed or masonry construction base coat typically spray or trowel applied over a plaster base or lathlath may not be needed on masonry construction finish coats applied by spray or trowel to the drycured base coat. The terms cement plaster and cement stucco are used interchangeably. Stucco, cracking, plaster basecoat, portland plaster all portland cement based products, including stucco are susceptible to the occasional cracking. The use of portland cement has proven itself as a reliable building product since it was first introduced by the english inventor joseph aspdin in 1824. Company specializing in performing plasterstucco work with minimum of three 3 years experience. In addition, phoenix plastic cement meets all requirements of the current astm specification.
Plaster or stucco on concrete, cement saint astier. Application of portland cementbased plaster florida building code. Plaster coat custom stucco cement sand volume scratch coat 1 bag 2. This manual serves as a guide to acceptable practices in designing, mixing, and applying portland cement plaster stucco. Though considered antiquated, it is still specified today, primarily on military projects or projects located in the northern states. Astm c 926 standard specification for application of portland cement based plaster. I have a 1938 house with stucco on the inside walls. Stucco portland cement plaster trinidad on the building. Supply and installation of base coat, reinforcing mesh and finish installed over portland cement stucco.
Mar 31, 2020 it is, however, important to recognize the difference between stucco and plaster. It is widely recognized as an education and technical spokesman for the industry. Mixing mixing the plaster slurry is one of the most important steps in producing plaster molds with maximum strength. Both portland cement and masonry cement are used for the base and finish coats of stucco exterior walls. Manual on plasterers tools, application, and finishes. These notes are included as hidden text, and can be revealed or hidden by one of the following methods.
The use of portland cementlime mortars for unit masonry andor stucco was the standard of the industry for nearly a century. For stucco and plaster, the ancient greeks and romans utilized a volcanic ash mixture. Download, edit and save this stucco plastering contractor safety manual template within 10 minutes. This is an essential reference for any contractor testing for a plastering and stucco contractor license. Stucco is usually white, but special color blends are available. Stucco cracking in portland cement plaster base coats.
Similar to previous editions, the fourth edition of the stucco resource guide, published in 2016, contains information on the properties of stucco. This fifth edition of this best seller is illustrated with numerous color photos and contains essential information on materials, bases, mixes, hand and machine applications, and curing. In addition, phoenix plastic cement meets all requirements of the current astm specification c 91 and ubc standard 2111 and ibc 2103. The minnesota lath and plaster bureau has promoted the industry since 1953. Acrylic and cement based stucco finishes in direct sunlight in. It meets all the chemical and physical requirements of astm c 28 as well as ubc standard 251 and ibc 2511 and 2512 for plastic stucco cement. Stucco faced a monumental change in 1824, with the discovery of cement. Then you can start reading kindle books on your smartphone, tablet, or computer no kindle device required. The stucco manufacturers association sma is a nonprofit association formed in 1957 to promote best practices for cement plastering stucco.
Most aci standards and committee reports are gathered together in the annually revised aci manual of concrete practice mcp. Brodie, 1992, nature, 467 pages medicinal plants of east africa is a revised edition of the book first published in 1976 on herbal remedies and he traditional. The most substantial guide to cement rendering practice is william millars plastering. Building owners and plasterers noted that stucco cracked. This guide, however, refers to stucco as plaster that is applied to an exterior surface, and portland cementbased plaster as plaster that is applied to either an interior or exterior surface. It provides services to architects, the construction community and the public on a variety of matters relating to the plastering trades.
The fundamental difference between the two is location. Since straight cracks look better than map cracking, plasterers starting scoring the first and second coats of plaster to make a weak place in the plaster so cracks would occur in a predetermined place. Stucco, the common term for portland cement plaster, is a popular exterior finish for buildings. Its a question a lot of folks have when they look at their old house. Plaster c28standardspecificationfor plastic stucco cement physicalchemical properties holcim custom stucco cement is manufactured to meet or exceed astm c 28 for the indicated type when mixed with the recommended volume of sand meeting astm c 897, this product will comply with astm c 926 holcim custom stucco cement is manufac. Eifs, a lightweight system, is comprised of a polystyrene insulation board secured to the exterior wall. Our premier cement stucco system is a modification of a traditional three coat cement stucco over wire lath.
I found the most useful information at the very end when you are shown several stuccoplaster finishes with a brief instruction on how to achieve that finish. While some may classify stucco or plaster as utilizing separate binding materials e. Plasterers manual for applying portland cement stucco and plaster. Eifs is a relatively new cladding option that was introduced to the us in 1969. Do your stuccoing in mild weather 50 to 80 f and work when the surface is shielded from direct sun that could dry the stucco too quickly, resulting in cracking.
The densities of the different types of stucco coats for portland cement base coat type c plaster, finish coat type f plaster and masonry for a. C1063 standard specification for installation of lathing and furring to receive interior and. Phoenix plastic cement is manufactured specifically for the plaster stucco industry. Gypsum stucco plaster manufacturers shubham plasters exporters, suppliers of traditional stucco plaster india, indian gypsum stucco plaster, portland cement plaster manufacturer, wholesale traditional stucco plaster suppliers, gypsum stucco plaster, traditional stucco plaster, portland cement plaster. This barcode number lets you verify that youre getting exactly the right version or edition of a book. Stucco, however, is made from portland cement, lime and sand. Gypsum stucco plaster manufacturers shubham plasters exporters, suppliers of traditional stucco plaster india, indian gypsum stucco plaster,portland cement plaster manufacturer, wholesale traditional stucco plaster suppliers, gypsum stucco plaster, traditional stucco plaster, portland cement plaster. If you need florida contractor license application help, holiday gift guide 2019, holiday gift ideas, gift ideas for the holidays, holiday specials, holiday sales, what to get for the holidays, gift ideas for the family, what to get my husband for the holiday, handy gift ideas, handyman. We much rather use james hardie siding which consist of finelyground sand. For the right planning and preparation of portland cement plaster over frame, concrete or block, the first step is to follow the guidelines given in pcas portland cement stucco manual, eb049.
Repair of portland cement plaster stucco technical services. Exterior stucco cement wall plaster finish dark brown california stucco co. It is strong, durable, waterproof in the common sense of the term, and can be furnished in a wide range of colors and textures. Products known as exterior plaster are made from a mixture of lime, plaster of paris and water. Stucco manufacturers association guide specificationiton. Portland cement plasterstucco manual contractor campus.
Ahi supply lp 09 24001 portland cement plastering 11. Provide portland cement based plaster where cement plaster stucco is shown and specified, and as follows. Plaster or stucco on concrete, cement saint astier natural. Interior portland cement plasterwork on metal lath and solidplaster bases. Performance of glass fiber lath as a plaster base with.
Instead, in english, plaster broadly is thought of being used entirely for interior use and stucco for exterior applications. Collapse of suspended portland cement plaster stucco. All portland cement plaster stucco products and installation methods follow these standards set by. Stucco is cement plaster that can be used to cover exterior wall surfaces. Division 6 section rough carpentry for wood framing and furring included in portland cement plaster assemblies. I mean, they are basically made out of the same materials. This publication does not address synthetic plaster. Threecoat work is to be used over all metal plastering bases, with or without solid backing. Nonmetallic plaster base lath in exterior portland cement plaster. I found the most useful information at the very end when you are shown several stucco plaster finishes with a brief instruction on how to achieve that finish. Today, while plaster comes in various types, portland cement has been responsible for. Portland cement plaster stucco resource guide, 1998. Plastering, stuccoing, and ceramic tile plaster and stucco are like concrete in that they are construction materials applied in a plastic condition that harden in place.
Enter your mobile number or email address below and well send you a link to download the free kindle app. Gypsum stucco plaster,traditional stucco plaster,portland. Acf for stucco specifications csi section 09 97 23 section 09 97 23 concrete and portland cement stucco coatings architectural coatings and finishes for portland cement stucco part 1 general 1. Other than that, the advice printed in this short manual produced by the portland cement association can be found at numerous web sites. But when you come across historic buildings built in the 1920s and 1930s that used portland cement based stucco. The extent of the stucco work shall be as indicated on the drawings. They both describe a combination of cement and aggregate mixed with a suitable amount. America stucco cement will not perform as designed if the mixing instructions are.
This manual presents recommended procedures for repairing portland cement plaster. This portland cement association publication covers most aspects of the plastering and stucco trade. Do you need a safety manual, program or plan for stucco plastering contractors fast. The resulting plaster composition by mass can be converted to volumetric batch chemical analysis of stucco plaster determining the composition of a stucco plaster can be useful when. It provides an economical hard surface that is rot, rust, and fire.
It may be applied directly to a solid base, such as. Plaster plaster stucco manualortland cement portland. Plaster vs stucco creative construction of wisconsin. The stucco manufacturers association sma guide specification for 2coat portland cement plaster stucco applied to concrete or masonry walls 22017 introduction. Apr 11, 2016 if you have portland cement stucco, then by all means, patch and repair with a similar formula stucco, but if you have lime stucco, then dont even think about repairing with portland cement unless you want more repairs down the line. This howto guide and technical manual contains everything you need to know about plastering and stucco.
C926 standard practice for application of portland cementbased plaster. The collapse of a suspended soffit consisting of portland cement plaster stucco on metal lath was investigated to determine the probable cause of collapse after over 30 years of service. The plaster should be fully dispersed in the water prior to mixing. For either type of stucco, a coating or finish is applied over. It is applied over wall and surfaces inside and outside buildings.
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