Autoclaved Aerated Concrete (AAC)

Floor & Roof PANEL

Structural precast panels that are faster, lighter, and less expensive than conventional steel and concrete floor & roof systems

Construction workers in safety vests and helmets working on a building site near a hanging large concrete slab, with a background of trees and parked cars.
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Load-bearing Panels

For CFS, Steel, and Concrete Frames

Max Span
19’-8”

4-Hour Fire Rating

STC 46-53 Sound Reduction

Fast
installation

Floor & Roof panels

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How it works

Precast AAC floor and roof panels are lifted into place and set on cold-formed steel, structural steel, AAC masonry, or concrete structural frames, joints are grouted, and panels are locked together with a cast-in-place concrete ring beam.

Two construction workers installing a large white concrete beam on a building. The workers are wearing safety gear including helmets and harnesses, and the construction site has scaffolding and brick walls.

Structural Frame

Construction site with framing for a building near a body of water, with a bridge, trees, and houses in the background.

Floor & Roof
Panels

Hotel room with two unmade beds, a dark wood headboard with built-in reading lights, a nightstand, a dresser with a lamp, and a mirror on the wall.

Floor/Roof Finish

WHY BUILDING OWNERS CHOOSE AAC FLOOR & ROOF PANELS

Owners choose AAC floor and roof panels for reduced construction time and costs along with improved occupant experience, fire protection, and long-term durability.

Parking lot in front of a multi-story hotel, with several parked cars and trees, under a partly cloudy sky.

DURABILITY + RESILIENCE

✓ Moisture and rot resistant
✓ Fire protection

Aerial view of a white beachfront hotel named Courtyard by Marriott with multiple balcony rooms, overlooking the ocean and surrounded by residential houses.

PERFORMANCE

✓ Improved occupant experience
✓ High sound reduction
✓ Reduced assembly and structure weight
✓ Thermal performance

Modern two-story white house with a flat roof and black window frames, situated on a sloped yard with rocks and patches of grass, with a cloudy blue sky above.

LOWER TOTAL COSTS

✓ Faster installation
✓ Construction cost savings
✓ Reduced trade coordination and sequencing risk

WHERE FLOOR AND ROOF PANELS ARE USED

Floor and roof panels are well-suited for projects requiring high quality occupant experiences, fire resistance, and construction time and cost savings.

✓ Hospitality
✓ Senior Care
✓ Student Housing
✓ Multifamily
✓ Healthcare
✓ Office

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COMPARISON TO TRADITIONAL FLOOR AND ROOF SYSTEMS

AAC floor and roof panels simplify and speed up construction compared to conventional floor and roof assemblies while providing best-in-class performance and durability.

COMPARISON TO TRADITIONAL FLOOR AND ROOF SYSTEMS

AAC floor and roof panels simplify and speed up construction compared to conventional floor and roof assemblies while providing best-in-class performance and durability.

Wood and Metal Framing

WEAK POINTS

Combustible and vulnerable to fire damage

Susceptible to moisture and rot

Requires multiple layers of materials and construction steps

Low performance systems

AAC ADVANTAGE

Non-combustible construction

Fully integrated structural system

Precast assembly that reduces construction steps and time

Resistant to moisture, mold, rot, and pests

Steel Deck + Concrete

Weak Points

Multi-step process (decking, reinforcing, pouring, curing)

Longer schedules due to pouring and curing time

Additional fireproofing steps

Significant weight and

AAC ADVANTAGE

Precast panels eliminates need for concrete pours

Faster installation sequence

Fewer trades and steps

Integrated fire protection

Cost and time savings

Precast Hollow-Core Concrete

Weak Points

Heavier and larger panels requiring larger equipment

Limited field modification flexibility

Not insulated

AAC ADVANTAGE

Lighter weight panels

Simplified detailing and installation

Faster and more flexible installation

Insulation and fire protection included

SYSTEM

Wood and Metal Framing

Steel Deck + Concrete

Precast Hollow-Core Concrete

WEAK POINTS

Combustible and vulnerable to fire damage

Susceptible to moisture and rot

Requires multiple layers of materials and construction steps

Low performance systems

Multi-step process (decking, reinforcing, pouring, curing)

Longer schedules due to pouring and curing time

Additional fireproofing steps

Significant weight and structural requirements

AAC Advantage

Heavier and larger panels requiring larger equipment

Limited field modification flexibility

Not insulated

Non-combustible construction

Fully integrated structural system

Precast assembly that reduces construction steps and time

Resistant to moisture, mold, rot, and pests

Precast panels eliminates need for concrete pours

Faster installation sequence

Fewer trades and steps

Integrated fire protection

Cost and time savings

Lighter weight panels

Simplified detailing and installation

Faster and more flexible installation

Insulation and fire protection included

TYPICAL ASSEMBLIES & INSTALLATION

Floor and roof panels are placed on structural frames, locked together with grouted keyways and concrete ring beams, and then finished with common floor finishes or roofing materials.

Panels typically weigh 350-1,300 pounds
Can use smaller cranes
Fast installation with 4-5 person crew
UL fire-rated assemblies available

  • Aerial view of a multi-story building under construction near a body of water, with construction workers, equipment, and materials visible on site.

    typical assembly

    1. Floor finish

    2. Floor panel

    3. Structural frame (CFS, steel, concrete)

    4. Ceiling finish

  • Empty white living room with large black-framed windows, a modern chandelier, hardwood floors, a fireplace with a gray tile wall, and an open kitchen with a white marble island.

    FLOOR FINISHES

    • Carpet

    • Ceramic Tile

    • LVT

    • Wood flooring

  • Construction workers installing green and black roofing materials on a rooftop with overcast skies. Various construction equipment and safety barriers are visible on the rooftop.

    ROOF FINISHES

    • Tapered polyiso insulation and roof membrane

    • Spray polyurethane foam

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