Chapter 20 Cladding with Masonry & Concrete. Masonry & Concrete Cladding Materials Brick Masonry...
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Transcript of Chapter 20 Cladding with Masonry & Concrete. Masonry & Concrete Cladding Materials Brick Masonry...
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
StructuralBackup Wall
Shelf Angle•Anchored to Structure•“Hung” from the floor
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
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 structureBolted, or welded attachmentAngle bracing
Sealant required to seal joints
Non-structural backup wall req’d
Stone Cladding on Trusses•Thin sheets of Stone•Attached to steel trusses•Set like “panels”
Posttensioned Limestone
Panels
Thin Stone Facings Cast into (attached to) Precast Concrete Panels
Architectural Precast Concrete
Precast Concrete w/
GraniteFacing
Glass-Fiber-Reinforced Concrete (GRFC)
Reinforced with Glass FibersSupport System - often metal framingLight (easy to mount, less structural load)Extensive range of colors, textures, shapes
Exterior Insulation & Finish System - EIFS
System: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
Metal Stud Support
Finished Application
Application of Insulation
Base coat with reinforcing mesh
EIFS
EIFS
AdvantagesCan be applied to steel framing, conc., CMU... Light system, insulation valueEconomical, easy to installMultiple finishes, textures/patterns, colors
DisadvantagesDesigned as a barrier system - leakage damage
Solution – development of an internal drainage system with EIFS
Easily damaged (additional reinforcing mesh to counteract)