Chapter 10 Masonry Loadbearing Wall Construction

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Chapter 10Masonry Loadbearing Wall Construction
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Masonry Wall Types

• Reinforced or Un-reinforced
• Reinforcing Increases Load Carrying Capacity
• Uses Low Rise Construction, Foundations
• One Type or Composite Masonry Walls
• Composite Two Wythes of Different Material
• Typ. - CMU Brick
• Solid or Cavity Walls

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Reinforced Masonry Walls
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Cell Reinforcing
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Cavity Walls

• Common Construction for Exterior Walls
• Insulating Value
• Reduced Weight
• Drainage

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Cavity Wall Construction

• Inner Wythe or support wall
• Air Space (Insulation Drainage)
• Outer Wythe of Masonry
• Masonry Ties to hold the Wythes together

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Masonry Veneer Anchors
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Masonry Flashing

• External Flashing
• Prevents Moisture Penetration
• Types
• Material

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Internal Flashing

• Through Wall (Concealed) Flashing
• Collects water
• Drainage Through Weeps
• Placement

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Shelf Angle
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Dampproofing Flashing
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Flashings over Wall Openings
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Thermal Insulation

• Outside Face (typically EIFS)
• Within the Wall
• In the Cavity or
• In the Hollow Cores
• On the Inside Face

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Insulation in Cavity
Insulation in CMU cells
Insulation in Cavity
External Insulation
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Insulation being installed in the cavity
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Masonry Construction

• Masonry and Wood
• Masonry and Steel
• Masonry and Concrete

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CMU Masonry with Joist Metal Decking
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CMU with Precast Concrete Decking
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MPE Rough-In
Electrical Rough-in

• Rough-in
• Electrical
• Plumbing
• HVAC

Fire Damper
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Electrical Roughin
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Expansion Contraction

• Structure Movement, Masonry Changes
• Expansion Joints
• Within Masonry Wall
• Two-way Movement
• _at_ Change in Thickness, Height, or Openings
• Isolation Joints

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Expansion Joint
Weep Holes
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Expansion Joint Material
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Other Special Problems

• Efflorescence
• Joint Deterioration
• Moisture Penetration
• Hot Cold Weather Construction

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Efflorescence
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Efflorescence
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Masonry and the Codes

• Masonry often used as a fire separation wall
• Used with Steel and Concrete Decks - Type 12