Call us: 01329 841 416
Fast Delivery on all in stock items

Cavity Seal - up to 25mm cavity

Cavity Seal - up to 25mm cavity - AFFRCLAD35

Key Points:

  • Ventilated Fire Barrier - for cavities up to 25mm
  • Review images for more details

Astro Clad 35 was designed to meet the NHBC requirements to maintain a minimum 15mm ventilation gap in timber frame constructions. The product has been successfully fire tested in maximum size cavities of 25mm fitted directly onto combustible breather membrane and fixed into the timber structure to provide at least 30 minutes fire rating. It can additionally achieve greater fire ratings in non-combustible structures.


  • Size: 35mm x 4mm x1000mm encased in foil
  • Maximum cavity size: 25mm
  • Maximum free area: 83%
  • Price is per 1metre length.
  • Product Code: AFFRCLAD35

Certification/Fire Test Reports:

  • Fire ratings:
  • Minimum 30 minutes in Timber Structures
  • 120 minutes in Non-Combustible Structures

Cavity Seal - up to 25mm cavity:

  • Prices From: £8.17 £6.81 (ex. VAT)

How To Order:

  • For all enquiries about Cavity Fire Barrier on a Roll please call us: 01329 841 416 or email us:
  • Please Note: This product will NOT be dispatched until approved by our technical team.

Download and review any of the following information:







Sort By