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Chapter 20 Cladding with Masonry & Concrete
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Masonry & Concrete Cladding Materials
Brick Masonry Stone Masonry Cut Stone Panels Precast Concrete Exterior Insulation & Finish System
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Masonry Veneer Curtain Walls
Structural Backup Wall Shelf Angle Anchored to Structure Every Floor Supports Brick Veneer “Soft” Joint Allows for movement Structure Creep Brick Expansion Beam deflection Erection tolerances
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Metal Stud Backup Wall Construction Details
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Masonry Veneer Details
CMU Backup Wall Masonry Veneer Details CMU Backup Wall Dampproofing Insulation Brick & Ties
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Metal Stud Backup Wall Advantages vs. CMU Disadvantages vs. CMU
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
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Masonry Veneer Anchors
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Steel Masonry Support System
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Prefabricated Brick Wall Panels
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Prefabricated Brick Soffit Panels
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Stone Panels Mounted on a Steel Subframe Considerations
Non-structural “interior” Backup Wall needed System Integrity depends on Joint Sealant
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Monolithic Stone Cladding
Stone panels fastened direct to the structure Bolted, or welded attachment Angle bracing Sealant required to seal joints Non-structural backup wall req’d
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Stone Facing (granite & limestone)
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Stone Cladding on Trusses
Thin sheets of Stone Attached to steel trusses Set like “panels” Posttensioned Limestone Panels
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Thin Stone Facings Incorporated into Curtain Wall Mullions
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Thin Stone Facings Used in Conjunction w/ Exterior Storefront
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Thin Stone Facings Cast into (attached to) Precast Concrete Panels
Architectural Precast Concrete Precast Concrete w/ Granite Facing
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Precast Concrete Panels
Conventional or prestressed, high quality molds/forms, sandwiched insulation, multiple finishes and/or application of stone, tile, brick, …..
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Ceramic Tile Facing On Precast Concrete
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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
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Exterior Insulation & Finish System - EIFS
Foam Insulation adhered or fastened to a Backup wall (typically metal studs with gypsum sheathing or CMU) Up to 4” thick; prevent ‘thermal’ bridging & permits articulation Base coat(s) of stucco like material with reinforcing mesh Exterior Finish coat of a stucco-like material Appearance like stucco
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Exterior Insulation & Finish System (EIFS)
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EIFS Metal Stud Support Application of Insulation
Base coat with reinforcing mesh Finished Application
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multitude of textures and colors
EIFS Applications multitude of textures and colors
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EIFS Advantages Disadvantages
Can be applied to steel framing, conc., CMU... Light system, insulation value Economical, easy to install Multiple finishes, textures/patterns, colors Disadvantages Designed as a barrier system - leakage damage Solution – development of an internal drainage system with EIFS Easily damaged (additional reinforcing mesh to counteract)
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