What are the pros and cons of composite panels?

Composite panels are made from two outer facings bonded to a low-density core. This engineered structure delivers reliable performance across a range of building applications, but like any façade solution, it comes with both advantages and limitations. 

Pros of Composite Panels

Weathertightness - Once installed, composite cladding systems make the building envelope weathertight very quickly. This allows internal works to begin earlier, helping contractors maintain programme timelines and reduce delays caused by adverse weather.

Structural Performance - Composite panels offer a strong, stable construction that is lighter than the weight of equivalent solid materials. Their engineered composition provides an excellent strength-to-weight ratio and can withstand high compressive forces, making them suitable for demanding environments. This can support easier logistics, reduced load on building structures and improved transport efficiency.

Versatile Design Options - Composite panels can be manufactured with a range of core types (non-combustible, thermally insulating or high-density acoustic solutions) and various external facings. Many systems also integrate with rainscreen options, allowing architects to specify panels in different finishes and materials for greater design freedom.

Suitable for Modular and Large-Scale Construction - Their panelised format and structural efficiency make composite systems well suited to offsite manufacturing, large industrial units and projects requiring rapid enclosure.

Cons of Composite Panels

Manual Handling - Despite being lighter than solid alternatives, composite panels are not lightweight construction products. Long panels can exceed 100kg and typically require mechanical assistance to move safely.

Handling and Access Challenges - Due to their weight, composite panels require additional clearance for safe turning and manoeuvring, often needing expensive handling equipment (such as tower cranes), which can create logistical challenges on constrained sites. These size and handling demands become even more problematic in dense urban environments like central London, where access and turning space are limited, making traditional rainscreen systems with smaller, modular components a more practical alternative.