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Please Note - Extended lead time in effect. Last dispatch before holidays: 19th December 2025. We reopen on 5th January 2026. Please call for lead times
  • Exoperm Duro A1 Breather Membrane Timber Frame
  • Exoperm Duro A1 Breather Membrane Timber Frame

Exoperm Duro A1 Breather Membrane Timber Frame - 75 Sqm

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(incl VAT) £955.31
(excl VAT) £796.09
Please Note - Extended lead time in effect. Last dispatch before holidays: 19th December 2025. We reopen on 5th January 2026. Please call for lead times
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Exoperm Duro A1 is a revolutionary non-combustible, external breather membrane, engineered to deliver the highest level of fire safety and building protection. This product sets a new standard for vapour-permeable sheets, providing superior weather and moisture management while ensuring ultimate resistance to fire. Specifically created for high-rise and high-risk buildings, Exoperm Duro A1 membrane is a critical component for any modern façade design, safeguarding the building envelope without compromising on performance.

Key Features

  • Ultimate Fire Safety: Achieves the highest possible fire classification of Euroclass A1 fire rating (BS EN 13501-1), certifying it as a truly non-combustible material. 
  • Exceptional Performance: As a non-combustible, breathable membrane, it allows vapour to escape from the wall structure, preventing moisture buildup while maintaining superior airtightness and weather protection.
  • Durable & Resilient: The advanced fabric construction offers excellent mechanical strength and resistance to UV exposure (for up to 3 months, without cladding), ensuring long-term reliability and performance as an external protection layer.
  • Fully Certified: This breather membrane is both CE approved and UKCA approved, meeting stringent European and UK standards. 

Applications

Exoperm Mono A1 works as a non-combustible breathable membrane and windtight layer for the external building envelope-

  • Timber and steel framed constructions.
  • Residential and commercial developments.
  • New builds and retrofits.
  • Façades with closed joints.
  • High-rise, high-risk and public buildings (schools, offices, commercial centres, hospitals, etc.)
  • Offsite construction.
  • Experm A1 Duro is 1.5m wide and 50M long, covers 75 Sqm
  • it is a Class A1 non-combustible breathable membrane suitable for external facade applications
  •  UKCA approved. CE approved breather membrane
  • It is designed to meet the highest levels of fire protection
  • Suitable for installation on the façade, in high-rise and high-risk buildings
Product Type  External Breather Membrane 
Product Code  Exoperm Duro A1
Brand  Partel
Weight  210 g/m²
Length  50mM
Width  1.5M
Coverage   75 SQM
Sd Value  EN 12572
Reaction to Fire  A1
Water Resistance  W2
Sd Value  0.03M
Colour  Silver/white
Material  Advanced glass fibre fabric.
Vapour Resistance  0.15 MNs/g.

 

Delivery Terms
Order Value (Excluding VAT)  Delivery Condition
Orders below £620  £35 
Orders between  £620-  £1230  £30
Orders between  £1231-  £2460  £28
Orders Above £2460  Free Delivery

Cancellations, Returns And Refunds:

  • You are free to cancel your order before we send you an order confirmation email with an estimated delivery date, and get a full refund
  • Once the order is confirmed and an estimated delivery date is issued via email, Orders cannot be cancelled. 
  • Incorrectly ordered doods can be returned within 14 days of delivery at our discretion. The customer is responsible for ensuring the goods are returned back to the address provided, in good condition where they will be inspected prior to processing any refunds. Restocking fee may be applied
  • For incorrect, damaged or faulty products, please contact us immediately after you receive delivery and we will assist accordingly.

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Delivery Terms
Order Value (Excluding VAT)  Delivery Condition
Orders below £620  £35 
Orders between  £620-  £1230  £30
Orders between  £1231-  £2460  £28
Orders Above £2460  Free Delivery

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