AAC Products
AAC Horizontal Cladding Panels
AAC horizontal cladding panels are panelized AAC components used in facade and envelope applications where horizontal expression, lightweight construction, and coordinated exterior detailing are required. MHE Group is a global AAC producer producing and delivering AAC building systems at its associated AERCON plant, backed by 40+ years of AAC engineering, factory development, installation, and project delivery expertise.
When to choose Horizontal Cladding Panels
Choose horizontal cladding panels for building envelopes on a steel or concrete frame. The panels span horizontally from column to column and are stacked up the facade to form a non-combustible, insulating exterior wall. Where the wall itself has to carry load, vertical wall panels are used instead.
Applications
- Horizontal exterior cladding systems
- Facade and envelope applications
- Industrial and commercial wall assemblies
- Projects requiring coordinated panelized exterior elements
Technical data (ICC-ES ESR-1652)
The AERCON plant in Haines City, Florida, which produces the AAC products MHE Group supplies in the United States, holds ICC-ES Evaluation Report ESR-1652 for AERCON reinforced AAC panels (reissued May 2026, valid through May 2027). The values below are quoted from Table 2 of that report. They are material design values for strength category AC4, not whole-wall or whole-assembly ratings; the final design is confirmed by the project engineer.
| Property | AC4 |
|---|---|
| Nominal dry density | 40 pcf (600 kg/m³) |
| Minimum compressive strength, f′c | 626 psi |
| Allowable compressive strength | 157 psi |
| Allowable flexural compressive strength | 209 psi |
| Allowable flexural tensile strength | 24 psi |
| Allowable shear strength | 17 psi |
| Modulus of elasticity, E | 360,000 psi |
| Coefficient of thermal expansion | 4.4 × 10⁻⁶ /°F |
| Thermal conductivity, k≈ 0.16 W/m·K | 1.11 Btu·in/(ft²·h·°F) |
| Thermal resistance per inch, R/in (computed as 1 ÷ k)Material value, not a whole-assembly R-value | ≈ 0.90 |
| Design dead weight | 49 pcf |
Fire resistance
- Reinforced floor and roof panels at least 8 in (203 mm) thick and 2 ft wide: 4-hour restrained assembly rating, and 1-hour unrestrained rating when the reinforcement has at least 7/8 in (19.1 mm) cover (ASTM E119).
- Partition panels 4 in (102 mm) thick, category AC4: 3-hour fire-resistance rating (nonbearing).
- The material is noncombustible per ASTM E136.
Further reading: AAC fire safety and what AAC is. For wider comparisons, see fire-resistant wall systems, building materials for hurricane-prone areas and lightweight vs traditional concrete construction.
- Allowable deflection: roof panels L/180 under total load and L/240 under live load; floor panels L/240 under total load and L/360 under live load.
- Reinforcing bars 3/16 to 1/2 in diameter with anticorrosion treatment per ASTM C1694 and minimum 1/2 in AAC cover. Panel span, load, and reinforcement are designed per project.
Source: ICC-ES ESR-1652 (PDF), Tables 1 and 2, held by AERCON Florida, LLC, Haines City, Florida. Compliance basis: ASTM C1386 and C1694 (material and reinforcement), ASTM E119 (fire tests), ASTM E136 (noncombustibility), for the IBC and IRC. Report status can be checked at icc-es.org; values on this page are updated when the report is reissued.
Technical Considerations
- Attachment, movement, weatherproofing, and finish systems must be coordinated with the facade design.
- Panel thickness, length, and fixing method depend on project-specific requirements.
- Horizontal cladding panels should be reviewed with structural, envelope, and installation teams before procurement.
Design and Installation Notes
- Coordinate horizontal cladding with waterproofing and finish specifications.
- Confirm attachment details and tolerances before installation planning.
- Request product documentation and compatible accessory information before ordering.
Completed projects
Lucent Technologies fiber-optic plant, Atlanta, Georgia: AAC cladding on a steel frame.
More projects are listed in the North American AAC project reference list.
Related AAC Product Paths
- AAC Vertical Wall Panels
- AAC Roof Panels
- AAC Installation Guide
- Reinforced AAC panels overview
- View the complete AAC product catalog
- Request global supply and export planning
Request a quote for Horizontal Cladding Panels
Request a quote, product documentation, supply information and technical review support for aac horizontal cladding panels from MHE Group.
Request a QuoteFrequently Asked Questions
What are AAC horizontal cladding panels used for?
AAC horizontal cladding panels are used for facade and exterior envelope applications where compatible AAC panelized components are suitable for the project design.
Are horizontal cladding panels structural?
Their role depends on the system design. Attachment, support, and load transfer must be confirmed by the project engineer and facade team.
Can MHE support horizontal cladding panel documentation?
Yes. MHE can help teams request product data, supply information, and technical coordination support for AAC horizontal cladding panels.
What is the difference between horizontal cladding panels and vertical wall panels?
Horizontal cladding panels span between frame columns and form the envelope of a steel or concrete frame building. Vertical wall panels run storey-high and can carry load. The structural system decides which one fits.