Copyright 2015 AIAMasterSpec Premium03/15

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Copyright 2015 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 044313.13 - ANCHORED STONE MASONRY VENEER

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on Masterworks/Single-File Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on Masterworks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

1.2SUMMARY

  1. Section Includes:
  2. Stone masonry anchored to concrete backup.
  3. Stone masonry anchored to unit masonry backup.
  4. Stone masonry anchored to wood framing and sheathing.
  5. Stone masonry anchored to cold-formed metal framing and sheathing.
  6. Products Installed but Not Furnished under This Section Include:
  7. Steel lintels in unit masonry.
  8. Steel shelf angles for supporting unit masonry.
  9. Related Requirements:

Retain subparagraph below to cross-reference requirements Contractor might expect to find in this Section but are specified in other Sections.

Retain subparagraph below if items in options are specified in Section042000 "Unit Masonry" for use in Work of both that Section and this Section.

  1. Section042000 "Unit Masonry" for [concealed flashing] [horizontal joint reinforcement] [and] [veneer anchors].

1.3PREINSTALLATION MEETINGS

Retain "Preinstallation Conference" Paragraph below if Work of this Section is extensive or complex enough to justify a conference.

  1. Preinstallation Conference: Conduct conference at [Project site] <Insert location>.

If needed, insert list of conference participants not mentioned in Section013100 "Project Management and Coordination."

1.4ACTION SUBMITTALS

  1. Product Data: For each variety of stone, stone accessory, and manufactured product.
  2. Sustainable Design Submittals:

"Product Certificates" Subparagraph below applies to LEED v4, Materials and Resources Credit "Building Product Disclosure and Optimization - Environmental Product Declarations, Option 2."

  1. Product Certificates: For materials manufactured within 100 miles (160 km) of Project, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include distance to Project and cost for each raw material.
  1. Samples for Initial Selection: For colored mortar and other items involving color selection.

Generally, retain "Samples for Verification" Paragraph below, especially for more variable stone varieties where Samples may serve to define acceptable range of colors, patterns, and so on.

  1. Samples for Verification:

Section013300 "Submittal Procedures" requires that Samples for verification "show the full range of color and texture variations expected"; however, this requirement may be inadequate for stone varieties that exhibit wide variations in color and texture. First subparagraph below likely provides better control.

  1. For each stone type indicated. Include at least [two] [three] [four] [five] <Insert number> Samples in each set and show the full range of color and other visual characteristics in completed Work.
  2. For each color of mortar required.[Label Samples to indicate types and amounts of pigments used.]

1.5INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

  1. Qualification Data: For Installer.

Retain "List of Materials Used in Constructing Mockups" Paragraph below for critical work if record of mockup materials is required.

  1. List of Materials Used in Constructing Mockups: List generic product names together with manufacturers, manufacturers' product names, supply sources, and other information as required to identify materials used. Include mix proportions for mortar and source of aggregates.
  2. Neither receipt of list nor approval of mockups constitutes approval of deviations from the Contract Documents contained in mockups unless Architect approves such deviations in writing.

Retain "Material Test Reports" Paragraph below for material test reports that are Contractor's responsibility.

  1. Material Test Reports:
  2. Stone Test Reports: For[each] stone variety proposed for use on Project, by a qualified testing agency, indicating compliance with required physical properties, other than abrasion resistance, according to referenced ASTM standards. Base reports on testing done within previous [three] [five] <Insert number> years.
  3. Sealant Compatibility and Adhesion Test Report: From sealant manufacturer indicating that sealants will not stain or damage stone. Include interpretation of test results and recommendations for primers and substrate preparation needed for adhesion.

1.6QUALITY ASSURANCE

  1. Installer Qualifications: A qualified installer who employs experienced stonemasons and stone fitters.
  2. Mockups: Build mockups to demonstrate aesthetic effects and to set quality standards for materials and execution.

Retain first subparagraph below for large-scale mockup or include in Section014000 "Quality Requirements." Indicate portion of wall represented by mockup on Drawings or draw mockup as separate element.

  1. Build mockup of typical wall area as shown on Drawings.

Retain first subparagraph below for limited mockups.

  1. Build mockups for [each type of stone masonry] [typical exterior wall] in sizes approximately [48 inches (1200 mm)] [60 inches (1500 mm)] [72 inches (1800 mm)] [96 inches (2400 mm)] <Insert dimension> long by [48 inches (1200 mm)] [60 inches (1500 mm)] [72 inches (1800 mm)] <Insert dimension> high by full thickness, including face and backup wythes and accessories.

Delete any of first four subparagraphs below that do not apply or are not required.

  1. Include stone coping at top of mockup.
  2. Include a sealant-filled joint at least 16 inches (400 mm) long in mockup.

Retain first subparagraph below to show materials and methods used for through-wall flashing if required.

  1. Include through-wall flashing installed for a 24-inch (600-mm) length in corner of mockup approximately 16 inches (400 mm) down from top of mockup, with a 12-inch (300-mm) length of flashing left exposed to view (omit stone masonry above half of flashing).
  2. Include [metal] [wood] studs, sheathing, veneer anchors, flashing, and weep holes in exterior masonry-veneer wall mockup.
  1. Protect accepted mockups from the elements with weather-resistant membrane.
  2. Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups unless Architect specifically approves such deviations in writing.

Retain subparagraph below if the intention is to make an exception to the default requirement in Section014000 "Quality Requirements" for demolishing and removing mockups.

  1. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.

1.7PRECONSTRUCTION TESTING

Retain "Preconstruction Sealant Compatibility and Adhesion Testing" Paragraph below if sealants are specified in this Section.

  1. Preconstruction Sealant Compatibility and Adhesion Testing: Submit to joint-sealant manufacturers, for compatibility and adhesion testing according to sealant manufacturer's standard testing methods and Section079200 "Joint Sealants," Samples of materials that will contact or affect joint sealants.

1.8DELIVERY, STORAGE, AND HANDLING

  1. Store cementitious materials on elevated platforms, under cover, and in a dry location. Do not use cementitious materials that have become damp.
  2. Store aggregates where grading and other required characteristics can be maintained and contamination avoided.

Always retain first paragraph below if Contractor uses a preblended, dry mortar mix.

  1. Deliver preblended, dry mortar mix in moisture-resistant containers designed for use with dispensing silos. Store preblended, dry mortar mix in delivery containers on elevated platforms, under cover, in a dry location, or in covered weatherproof dispensing silos.
  2. Store masonry accessories, including metal items, to prevent corrosion and accumulation of dirt and oil.

1.9FIELD CONDITIONS

  1. Protection of Stone Masonry: During construction, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work. Cover partially completed stone masonry when construction is not in progress.

Increase extent of cover in subparagraph below as needed to suit local climatic conditions.

  1. Extend cover a minimum of 24 inches (600 mm) down both sides and hold cover securely in place.
  1. Stain Prevention: Immediately remove mortar and soil to prevent them from staining stone masonry face.
  2. Protect base of walls from rain-splashed mud and mortar splatter using coverings spread on the ground and over the wall surface.
  3. Protect sills, ledges, and projections from mortar droppings.
  4. Protect surfaces of window and door frames, as well as similar products with painted and integral finishes, from mortar droppings.
  5. Turn scaffold boards near the wall on edge at end of each day to prevent rain from splashing mortar and dirt on completed stone masonry.
  6. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Remove and replace stone masonry damaged by frost or freezing conditions. Comply with cold-weather construction requirements contained in TMS602/ACI530.1/ASCE6.
  7. Cold-Weather Cleaning: Use liquid cleaning methods only when air temperature is 40 degF (4 degC) and above and will remain so until masonry has dried, but not less than seven days after completing cleaning.
  8. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in TMS602/ACI530.1/ASCE6.

1.10COORDINATION

  1. Advise installers of adjacent Work about specific requirements for placement of reinforcement, veneer anchors, flashing, and similar items to be built into stone masonry.
  2. Coordinate locations of dovetail slots installed in concrete that are to receive stone anchors.

PART 2 - PRODUCTS

Manufacturers and products listed in SpecAgent and Masterworks Paragraph Builder are neither recommended nor endorsed by the AIA or ARCOM. Before inserting names, verify that manufacturers and products listed there comply with requirements retained or revised in descriptions and are both available and suitable for the intended applications. For definitions of terms and requirements for Contractor's product selection, see Section016000 "Product Requirements."

2.1MANUFACTURERS

Delete third option in "Source Limitations for Stone" Paragraph below if stone for other Sections is specified in a stone schedule in this Section or if not using other stone Sections.

  1. Source Limitations for Stone: Obtain[each variety of] stone, [regardless of finish,]from single quarry[,whether specified in this Section or in another Section of the Specifications,] with resources to provide materials of consistent quality in appearance and physical properties.
  2. Source Limitations for Mortar Materials: Obtain mortar ingredients of uniform quality for each cementitious component from single manufacturer and each aggregate from single source or producer.

Retain "Varieties and Sources" Paragraph below and delete stone type articles below if stone varieties and sources are specified in Section044200 "Exterior Stone Cladding." Specifying all stone types in one Section helps ensure uniformity of stone supplied under different Sections.

  1. Varieties and Sources: Subject to compliance with requirements, provide stone of varieties and from sources complying with Section044200 "Exterior Stone Cladding."

Delete "Varieties and Sources" Paragraph above and retain one or more of first four articles below to describe stone types used if stone types are not specified in Section044200 "Exterior Stone Cladding." If articles describing stone types are retained here and only one type from each category is required, the generic name can be retained and used on Drawings instead of a stone-type designation; otherwise, copy and re-edit article retained for each type required, inserting a different stone-type designation each time. If different stone types require different thicknesses, patterns, or finishes, copy appropriate paragraphs from "Fabrication" Article to articles specifying stone types below, and delete copied paragraphs from "Fabrication" Article.

2.2GRANITE <Insert drawing designation

Some granite varieties that are suitable for stone masonry do not comply with ASTMC615/C515M; verify that granite selected will comply before retaining option in "Material Standard" Paragraph below.

  1. Material Standard: Comply with ASTMC615/C615M.

"Regional Materials" Paragraph below applies to LEEDv4.

  1. Regional Materials: Stone shall be fabricated within 100 miles (160 km) of Project site from materials that have been extracted, harvested, or recovered within 100 miles (160 km) of Project site.

"Description" Paragraph below is an example of a generic description that can be retained and revised for a nonproprietary specification.

  1. Description: Uniform, [fine] [medium]-grained, [white] [pink] [gray] [black] <Insert color> stone[without veining].

For a more explicit specification, retain "Varieties and Sources" Paragraph below and name specific products.

  1. Varieties and Sources: Subject to compliance with requirements, [provide the following] [provide one of the following] [available stone varieties that may be incorporated into the Work include, but are not limited to, the following]:
  2. Insert, in separate subparagraphs, names of varieties and producers, distributors, or importers>.

Retain paragraph below for added quality control if required.

  1. Match Architect's samples for color, finish, and other stone characteristics relating to aesthetic effects.

2.3LIMESTONE <Insert drawing designation

  1. Material Standard: Comply with ASTMC568/C568M.

Retain one of four options in "Classification" Subparagraph below. First option generally applies to very porous limestone that may only be used on building exteriors in mild climates; second, to oolitic limestone; third and fourth, to dolomitic limestone.

  1. Classification: [ILow Density] [IIMedium Density] [IIMedium Density, except as follows: absorption, 5 percent by weight maximum; density, 150 lb/cu. ft. (2400 kg/cu.m) minimum; compressive strength, 8000 psi (55 MPa) minimum; and modulus of rupture 800 psi (5.5 MPa) minimum] [IIIHigh Density].

"Regional Materials" Paragraph below applies to LEEDv4.

  1. Regional Materials: Stone shall be fabricated within 100 miles (160 km) of Project site from materials that have been extracted, harvested, or recovered within 100 miles (160 km) of Project site.

If retaining "Description" Paragraph below, retain one of three options. Coordinate with option retained in "Classification" Subparagraph. Description can serve as a salient characteristic if varieties other than those named are allowed and can be deleted if only specific named varieties are allowed.

  1. Description: [Dolomitic] [Oolitic] [Shell] limestone.
  2. Varieties and Sources: Subject to compliance with requirements, [provide the following] [provide one of the following] [available stone varieties that may be incorporated into the Work include, but are not limited to, the following]:
  3. Insert, in separate subparagraphs, names of varieties and producers, distributors, or importers>.

Retain "Varieties and Sources" Paragraph below if Indiana limestone is required. If retaining below, retain "IIMedium Density" option in "Classification" Subparagraph and "Oolitic" option in "Description" Paragraph. Revise below if stone from a particular quarry is required.

  1. Varieties and Sources: Indiana limestone quarried in Lawrence, Monroe, or Owen Counties, Indiana.

Select and Standard grades are hard to get in large sizes; gray is more plentiful than buff. Verify availability with producers.

  1. Indiana Limestone Grade and Color: [Select, buff] [Select, gray] [Standard, buff] [Standard, gray] [Rustic, buff] [Rustic, gray] [Variegated], according to grade and color classification established by ILI.

Retain paragraph below for added quality control if required.

  1. Match Architect's samples for color, finish, and other stone characteristics relating to aesthetic effects.

2.4QUARTZ-BASED STONE <Insert drawing designation

Retain one of three options in "Material Standard" Paragraph below.

  1. Material Standard: Comply with ASTMC616/C616M[,ClassificationISandstone] [,ClassificationIIQuartzitic Sandstone] [,ClassificationIIIQuartzite].

"Regional Materials" Paragraph below applies to LEEDv4.

  1. Regional Materials: Stone shall be fabricated within 100 miles (160 km) of Project site from materials that have been extracted, harvested, or recovered within 100 miles (160 km) of Project site.
  2. Varieties and Sources: Subject to compliance with requirements, [provide the following] [provide one of the following] [available stone varieties that may be incorporated into the Work include, but are not limited to, the following]:
  3. Insert, in separate subparagraphs, names of varieties and producers, distributors, or importers>.

Retain paragraph below for added quality control if required.

  1. Match Architect's samples for color, finish, and other stone characteristics relating to aesthetic effects.

2.5OTHER STONE <Insert drawing designation

Usually, replace "Other Stone" in title of this article with common name or varietal name of stone, as is used on Drawings.

  1. Material Standards:
  2. Maximum Absorption per ASTMC97/C97M: [7.5] [3] <Insert number> percent.
  3. Minimum Compressive Strength per ASTMC170/C170M: [4000 psi (28 MPa)] [7500 psi (52 MPa)] <Insert required value>.

"Regional Materials" Paragraph below applies to LEEDv4.