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Fire Rated Class A1 Membranes for Facades | Effisus
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Fire Rated Class A1 Membranes for Facades | Effisus

  • Use

    Building envelope protection
  • Applications

  • Characteristics

    Fire resistant, waterproof, UV resistant, easy installation, waste reduction
  • Certification

    A1 Fire rated membranes, A2 fire rated systems

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Effisus offers a series of durable fire-proofing materials to protect building envelopes. As an industry leader, Effisus has unique knowledge and past experience in delivering high-performance materials, making their fire-rated membranes ideal for large construction projects.

Weatherproofing Membranes | Effisus

Breather and AVCL Systems - Fire Performance

The Breather and AVCL membrane systems are developed by Effisus as facade liners which help to control and prevent fire propagation on the exterior and interior areas. Breather and AVCL membranes are available in vertical and horizontal connection types, allowing for application to versatile designs.

To ensure optimal performance, tapes, adhesives, and sealants should be tested and certified as part of the membrane system. The Breather and AVCL membranes can be specified as non-combustible or limited combustible with minimum Class A2-s1, d0 on BS EN13501-1.

Fire Propagation | Effisus

Breather FR and Vapour FR System Benefits

The Breather FR and Vapour FR systems offer multifunctional fire protection with fiberglass membranes.

  • Fire-rated Class A1
  • All accessories are tested and compatible
  • Single system provider ensures increased quality control
  • Easy installation results in fewer on-site errors

Breather FR Membrane | Effisus

Effisus Breather FR - External

Vapour FR Membrane | Effisus

Effisus Vapour FR - Internal

Fire Proofing Membranes Typical Applications

  • Rainscreen cladding
  • Ventilated facades
  • Curtain walls
  • Traditional facades
  • Pre-fabricated facades

Effisus Fire Guidance

Based on industry experience, Effisus has noted a time-consuming and ineffective process in detailing and designing fire-proofing membranes, which often leads to delays and construction errors. To remedy this, Effisus has launched a Fire Guidance to help design membranes and their according accessories. Thus, the Fire Guidance assists in areas such as façade perforations, compatibilities with different substrates, and non-common details.

The AVCL and Breather membranes are primary examples of this process. With the Fire Guidance, Effisus considers two key points:

  • The membrane accessory (tape, sealant, adhesive, etc) needs to be compatible and have good adhesion with the porous surface (concrete or similar)
  • There are differential movements that need to be considered when designing the correct membrane accessory, thus a membrane accessory that provides elongation is ideal


EFFISUS provides high-quality building envelope weatherproofing solutions, including the A1 and A2 Fire Rated weatherproofing membranes. Supported by extensive consulting services, Effisus offers a wide range of solutions and systems for roofs, facades, interiors, and foundations. To ask for a sample, assistance with a project specification, technical articles or, to be connected with a UK or UAE Commercial team, contact EFFISUS.

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