A rainscreen facade system is more than just an aesthetic feature; it is a crucial component of a building’s performance and durability. This system consists of an outer cladding layer designed to act as a shield against the elements, while allowing air to circulate behind it. This circulation helps moisture to dry out, preventing damage to the building’s main structure and contributing to a high-performance building envelope.
Together, these layers form a robust building envelope that enhances the building’s performance, aesthetics, and sustainability. Each layer performs an essential function, and the system is designed so that no single layer has to bear too much responsibility on its own.
Traditional sealed face facades expect the outer cladding to hold back all water and wind loads, creating a strong pressure differential in the cavity. This can result in water being sucked into the cavity if there are any openings or cracks in the facade.
Alternatively, rainscreen cladding, with its open joints, allows wind pressure to quickly equalise in the cavity. This means that most of the wind pressure is transferred back to the weather barrier, where there is little to no rainwater. Without water on the surface, water can’t be sucked through.
The cladding and facade industry has faced significant challenges over the past few decades, from the combustible cladding crises to leaky building syndromes, and more recently, increased thermal efficiency requirements and issues with condensation and mould growth.
When we overprioritise a single aspect, we risk overlooking others and creating more problems. For example, a non-combustible membrane may not be the best at keeping water out of a building, which is its primary purpose. Similarly, perforated membranes may offer great permeability but fall short in keeping water out.
An externally insulated rainscreen facade is the best known way to overcome these industry issues.
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At Sculptform, our new product Velo Facades aims to bring clarity and a holistic approach to building envelope solutions. By focusing on the entire system, from the outer cladding to the internal structure, Velo Facades ensures that every aspect works in harmony. This results in buildings that are not only thermally efficient but also durable, sustainable, and healthy.
Get in touch with us below to find out more information on our new fully compliant high-performance facade system.