Swisspearl Construction HD - Marco Industries

Following recent events, it’s really important to know the fire standards of the cladding you’re using on buildings. By law, all buildings above 18 metres in height need to have cladding which is fire rated. Most cladding has some sort of protection built in, but only those which are FR should be used on these taller buildings.

These ratings range from an A1 to a D in accordance with European Standards EN-13501-1.

What does A1 and A2 Rated mean?

Class A1 – Products are described as having no contribution to fire at any stage. BS EN 13501 sets several thresholds for combustion performance when tested to both EN ISO 1716 and EN ISO 1182. One of these thresholds is a maximum heat of combustion of 2MJ/kg. Typical products meeting this classification include most inorganic materials such as metal and stone.

Class A2, s3, d2 – Products are described as having no significant contribution to fire at any stage. BS EN 13501 sets several thresholds for combustion when tested to EN ISO 1182, or both EN ISO 1716 and EN 13823. One of these thresholds is a maximum heat of combustion of 3MJ/kg. A typical product meeting this classification is plasterboard.For comparison, Wood has a typical value of 15 MJ/Kg.

Some products use a slightly different fire classification known as the BR 135 standard, set by the BRE (Building Research Establishment). When using a cladding product that is classified using this method, a full classification report must be supplied to prove compliance with BR 135.

For full information on the fire rating of a specific product, get in touch with us. We’d be more than happy to help.

Construction HD

A strong, weather-resistant building board for demanding applications

Swisspearl HD Construction board is an uncoated, untreated high-density building board/cladding sheet with many years of use in demanding climates. Natural grey, homogeneous fibre-cement with a cementitious appearance. Swisspearl HD is a durable, dimensionally stable, impact-resistant. The material will withstand extreme climates, resist rot and fungus.

Swisspearl Construction HD plates are untreated and appear with a natural raw expression. The plates have the option to be either left untreated or to be painted with diffusion open masonry and concrete paint. They make ideal solutions for interior design due to their applicability in more demanding environments.

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