However, façade design for high-rise buildings goes far beyond aesthetics. Their key considerations include fire safety, durability, and long-term maintenance performance with increasing regulatory scrutiny. Especially after the global fire incidents, there are stricter rules that developers, architects, and contractors must ensure that the selected ACP system meets strict safety and performance standards.
In our previous article on PE vs FR Aluminium Composite Panel: Which One Should You Choose?, we explored the differences between core materials and their applications. In this article, we are going to dig deep into the critical requirements for ACP in high-rise façades, including safety compliance, system design, fire performance, and installation quality.
CIDB Compliances for ACP
1. ACP Material Requirements
a) Core Material
For high-rise façade applications, which refer to buildings above 18 metres or more than 5 storeys, Fire-Retardant (FR) core ACP is mandatory. This is a key requirement aligned with CIDB expectations and enforced through project specifications and BOMBA guidelines.
Polyethylene (PE) core ACP, while cost-effective, is not suitable for external high-rise façades due to its combustible nature. It is typically limited to signage or low-risk applications.
b) Aluminium Skin
For high-rise buildings, façade-grade alloys such as A3003 or A1100 are essential because they provide better strength, flatness, corrosion resistance, and long-term durability under strong wind loads and harsh weather exposure.
c) Surface Coating
PVDF (Polyvinylidene Fluoride) Kynar 500 coating is highly recommended for high-rise building with ACP because this coating provides excellent resistance to UV exposure, weathering, and long-term colour fading.
2. Fire Safety
a) Mandatory Fire Test Compliance
ACP façade systems must comply with internationally recognised fire standards, including:
- BS 8414 - a fire test standard for façade and cladding systems. It checks how well external walls help delay fire spreading, especially in high-rise buildings, to improve safety and provide more time for occupants to escape.
- BS 476 Part 6 & 7 - Part 6 assesses how materials react to fire. Part 7 rates how quickly flame spreads across their surface. Used for internal walls and linings, these tests help in selecting safer materials to delay fire spread inside buildings.
CIDB manages quality and performance certification for construction materials. BOMBA enforces BS 8414 for all external wall cladding systems on buildings over 18 metres. Safety compliance is one of the primary benchmarks for high-rise projects.
b) System-Level Fire Protection
Fire safety is not limited to the ACP panel alone. The entire façade system must be designed to include:
- Fire stops at every floor slab
- Barriers within the façade system
- Non-combustible insulation where applicable
c) Key Risks Addressed
CIDB focuses on preventing major fire risks such as:
- Fire spread along the façade
- Combustion or melting of PE core materials
3. ACP System Design Requirements
a) Fixing & Support System
In many cases, façade failures are rarely caused by the ACP panel itself, but by inappropriate fixing systems. CIDB places strong emphasis on the design of the substructure, including:
- Aluminium subframes or steel brackets designed with proper structural calculations
- Anchors that are corrosion-resistant and capable of preventing pull-out failure
b) Wind Load Resistance
High-rise façades must be designed to withstand wind pressures. Key factors include:
- Building height
- Panel size
- Project location
c) Thermal Movement
ACP systems must accommodate expansion and contraction due to temperature changes. Proper joint gaps are essential to avoid issues such as panel buckling and sealant failure.
4. Drainage System
An effective ACP façade system should prevent water ingress while allowing proper internal drainage. Inefficient drainage design can lead to long-term façade deterioration.
5. Installation Requirements
a) Workmanship
Installation quality plays a major role in façade performance. Proper workmanship ensures:
- Accurate panel alignment
- Consistent joint spacing
- Smooth surface finish without oil canning
b) Fixing Method
The installation must be precise whether it's using the rivet or cassette systems. Over-tightening or inappropriate fixing methods can compromise panel performance.
c) Handling of Aluminium Composite Panels
Aluminium composite panels must be handled carefully during installation to prevent bending or surface damage. Protective films should also be removed within 45 days from the date of installation to avoid staining or adhesive marks.
To sum up, selecting ACP for high-rise façade applications requires more than just choosing a colour or finish. It involves a comprehensive understanding of safety requirements, system design, and installation quality.
As an established ACP manufacturer in Malaysia, MBond focuses on delivering products that meet key industry standards, including:
- SIRIM MS2571:2017 certification,
- BS 8414 fire performance testing,
- BOMBA compliance, and
- CIDB PPS requirements.
With proper material selection, well-engineered façade systems, and professional installation practices, high-rise projects can achieve not only strong safety performance but also long-lasting architectural appeal.
- Mbond Manufacturer Sdn Bhd
Photo Credited To Unsplash
