Portland cement plaster mix professional#

American National Standards Institute, Inc.American Society for Testing and Materials (ASTM).Lath and Plaster Standard: Comply with the Lath and Plaster Institute standards for application and finishing of Lath and Plaster, unless otherwise indicated.These guidelines should be reviewed prior to performing this procedure and should be followed, when applicable, along with recommendations from the Regional Historic Preservation Officer (RHPO). General Protection (Surface and Surrounding).These guidelines cover the following sections: See 01100-07-S for general project guidelines to be reviewed along with this procedure.Where current codes cannot be complied with, and/or construction limitations (including deterioration of existing substrate) are such that the intended finish cannot be achieved, notify the architect for clarification and/or decision prior to proceeding with the work.The contractor is to provide all necessary systems and materials as required to produce the intended finishes.Restoration: The work required includes finish restoration of original surfaces to the greatest degree possible, while complying with current codes and construction limitations.GENERALLY, THIS WORK SHOULD BE PERFORMED BY AN EXPERIENCED CONTRACTOR. This procedure includes guidance on re-lathing and re-plastering large surface areas with gypsum or Portland cement plaster.Method is the best alternative or compliant with current environmental regulations and safety standards.

Serve as general guidelines and do not constitute a federal endorsement nor a determination that a product or

Portland cement plaster mix professional#

Should only be applied under the guidance of a qualified preservation professional who can assess theĪpplicability of a procedure to a particular building, project or location. We’ve reviewed these procedures for general consistency with federal standardsįor rehabilitating historic buildings and provide them only as a reference. To serve as a resource, not a substitute, for specification development by a qualified preservation Or is compliant with current environmental regulations and safety standards. References to products and suppliers are to serve as a general guideline and do not constitute a federalĮndorsement or determination that a product or method is the best or most current alternative, remains available, All specifications require project-specificĮditing and professional judgement regarding the applicability of a procedure to a particular building, project or

With the Secretary of Interior Standards for rehabilitating historic buildingsĪs understood at the time the procedure is added to the library. Prior to inclusion in GSA’s library of procedures, documents are reviewedīy one or more qualified preservation specialists for general consistency