Why It Is Important To Check That A1 Cladding Is A1 Non-Combustible

As the market leader in aluminum composite material ACM we are proud to provide our customers with high-quality cladding. All our a1 cladding options are certified A1 Non-combustible, so you can rest assured that they meet the stringent fire protection requirements. However, as with anything that is exposed to the elements A1 cladding can also be subjected to a certain amount of damage over time. That is why it is important to carry out regular inspections of the cladding to ensure that it remains in good condition and complies with all requirements.

A1 is a composite material that can be moulded into a variety of expressions, shapes and designs. In addition to the freedom of expression it offers, A1 is particularly light in weight, durable and highly resilient. The combination of these characteristics makes it an ideal material for modernizing or upgrading existing buildings. The A1 facade can be mounted onto an existing background support structure – for example bricks, concrete or natural stone – and can be combined with a range of fillers or pigments to achieve the desired look.

The a1 facade consists of two 0.5 mm thick aluminium cover sheets and a 3 mm thick mineral core. The core is made from a non-combustible mineral mix, which is almost 100% free of polyethylene and has a calorific value of less than 1 MJ/kg. This core is not only a non-combustible but it also has excellent fire performance, which was confirmed in the government screening tests following the Grenfell Tower fire.

The fire protection of a1 cladding is extremely important in the construction industry, particularly for buildings that are required to comply with European Classification A2-s1, d0. This applies to all buildings whose height exceeds 18 metres, but can also include cladding on existing buildings.

It is therefore essential to check whether the cladding is A1 classified at all times and that all other components, such as membranes, sealants and gaskets are also A1 classified. The A1 facade can be damaged by non-a1 classified components, and the damage cannot always easily be remedied.

A1 cladding attracts moisture and releases it again during dry periods. It is therefore very important not to disrupt this process by applying a coating or paint that is not damp open, for example PU or PVDF. This can cause the A1 to corrode and could damage the coating system or even the top layer of the A1.

Inspect your a1 facade regularly. It is important to do this at least once a year, but more often is preferable. This is especially the case if the facade has been exposed to a significant impact or weather influences over a long period of time. Regular inspections will help to identify any damage as soon as it occurs and can be quickly remedied.