Chapter 20 Cladding with Masonry Concrete Masonry Concrete

Chapter 20 Cladding with Masonry & Concrete

Masonry & Concrete Cladding Materials Brick Masonry Stone Masonry Cut Stone Panels Precast Concrete Exterior Insulation & Finish System

Masonry Veneer Curtain Walls Shelf Angle • Anchored to Structure • Every Floor • Supports Brick Veneer “Soft” Joint • Allows for movement • Structure Creep • Brick Expansion • Beam deflection • Erection tolerances Structural Backup Wall

Metal Stud Backup Wall Construction Details

CMU Backup Wall Masonry Veneer Details • CMU Backup Wall • Dampproofing • Insulation • Brick & Ties

Metal Stud Backup Wall • Metal Studs • Exterior Gypsum Sheathing • Insulation • Attachment of Interior Finishes Advantages vs. CMU • Lighter • Insert Insulation, RI • Attachment of interior Finishes Disadvantages vs. CMU • Typically Less Rigid (lateral resistance) • Susceptible to moisture damage Shelf Angle • Anchored to Structure • “Hung” from the floor

Masonry Veneer Anchors

Steel Masonry Support System

Prefabricated Brick Wall Panels

Prefabricated Brick Soffit Panels

Stone Panels Mounted on a Steel Subframe Considerations • Non-structural “interior” Backup Wall needed • System Integrity depends on Joint Sealant

Monolithic Stone Cladding Stone panels fastened direct to the structure èBolted, or welded attachment èAngle bracing Sealant required to seal joints Non-structural backup wall req’d

Stone Facing (granite & limestone)

Stone Cladding on Trusses • Thin sheets of Stone • Attached to steel trusses • Set like “panels” Posttensioned Limestone Panels

Thin Stone Facings Incorporated into Curtain Wall Mullions

Thin Stone Facings Used in Conjunction w/ Exterior Storefront

Thin Stone Facings Cast into (attached to) Precast Concrete Panels Architectural Precast Concrete w/ Granite Facing

Precast Concrete Panels

Ceramic Tile Facing On Precast Concrete

Glass-Fiber-Reinforced Concrete (GRFC) Reinforced with Glass Fibers Support System - often metal framing Light (easy to mount, less structural load) Extensive range of colors, textures, shapes

Exterior Insulation & Finish System - EIFS System: èFoam Insulation adhered or fastened to a Backup wall (typically metal studs with gypsum sheathing or CMU) w Up to 4” thick; prevent ‘thermal’ bridging & permits articulation èBase coat(s) of stucco like material with reinforcing mesh èExterior Finish coat of a stucco-like material Appearance like stucco

Exterior Insulation & Finish System (EIFS)

EIFS Metal Stud Support Application of Insulation Base coat with reinforcing mesh Finished Application

EIFS Applications multitude of textures and colors

EIFS Advantages èCan be applied to steel framing, conc. , CMU. . . èLight system, insulation value èEconomical, easy to install èMultiple finishes, textures/patterns, colors Disadvantages èDesigned as a barrier system - leakage damage w Solution – development of an internal drainage system with EIFS èEasily damaged (additional reinforcing mesh to counteract)