Permo Air

Product Code: KU0045-1 KU0045-15 KU0045-11-15 KU0045-11-1

Part of The Specialist membrane range, Air is Klober's most breathable and best-selling roof underlay. The air-open, vapour permeable roof membrane is available with or without self-adhesive tape.

  • Minimises the risk of condensation forming, particularly during the drying out period of a building, such as new-build properties
  • BBA & NHBC approved as needing no additional high level ventilation, making it particularly cost and time effective
  • Available with or without self-adhesive tape, which creates a durable weatherproof seal, to reduce energy loss and provide strong protection against winds
  • 160 g
    Klober Permo Air Roll
    Klober Permo Air Underlay
    Klober Permo Air Membrane Installed

    More Information

    Part of The Specialist membrane range, Permo Air is Klober's most popular roof membrane. Air is a low resistance air-open roof underlay, suitable for pitched roofs. It is the ideal solution where there is a high risk of condensation forming in the roofspace; particularly during the drying out period of a building, making Permo Air the perfect solution for new builds. Permo Air roof membrane is available with or without self-adhesive tape, which creates a durable water and airtight seal, to reduce energy loss and provide strong protection against winds. Permo Air is BBA approved and NHBC accepted without the need for additional high-level ventilation, saving time and cost.

    Specifications

    Technical Data
    Colour
    Dark Blue
    Material
    Polypropylene
    BBA Standard Applicable
    07/4435
    BBA Standard Applicable
    07/4435
    Roof type for BBA standard
    Cold Non-Ventilated and Warm Non-Ventilated Pitch Roof Systems
    Wind zones BS5534 2014 Annex A
    Zones 1-3
    Fire Rating
    E
    Dimensions and Weights
    Width
    1m
    Length
    50m
    Coverage
    50m2
    Packaging
    Number of Pieces per Carton/Pack
    1
    Number of Carton/Pack on Pallet
    20
    Number of Pieces per Pallet
    20
    Weight per Piece
    8 kg
    Weight per Pallet
    160 kg
    Technical Data
    Colour
    Dark Blue
    Material
    Polypropylene
    BBA Standard Applicable
    07/4435
    BBA Standard Applicable
    07/4435
    Roof type for BBA standard
    Cold Non-Ventilated and Warm Non-Ventilated Pitch Roof Systems
    Wind zones BS5534 2014 Annex A
    Zones 1-3
    Fire Rating
    E
    Dimensions and Weights
    Width
    1.5m
    Length
    50m
    Coverage
    75m2
    Packaging
    Number of Pieces per Carton/Pack
    1
    Number of Carton/Pack on Pallet
    20
    Number of Pieces per Pallet
    20
    Weight per Piece
    12 kg
    Weight per Pallet
    240 kg
    Technical Data
    BBA Standard Applicable
    07/4435
    BBA Standard Applicable
    07/4435
    Roof type for BBA standard
    Cold Non-Ventilated and Warm Non-Ventilated Pitch Roof Systems
    Wind zones BS5534 2014 Annex A
    Zones 1-5
    Fire Rating
    E
    Dimensions and Weights
    Width
    1.5m
    Length
    50m
    Coverage
    75m2
    Packaging
    Number of Pieces per Carton/Pack
    1
    Number of Pieces per Pallet
    20
    Weight per Piece
    12 kg
    Technical Data
    Colour
    Dark Blue
    Material
    Polypropylene
    Material Description
    Strong 3 layer product consisting of UK stablised PP Fleece and a high performance Meltdown Layer
    Roof Type Application
    Cold and Warm Roof
    BBA Standard Applicable
    07/4435
    BBA Standard Applicable
    07/4435
    Roof type for BBA standard
    Cold Non-Ventilated and Warm Non-Ventilated Pitch Roof Systems
    Resistance to air penetration wind loads
    2.5kPA
    Wind zones BS5534 2014 Annex A
    1-3 and all zones with tape
    Water vapour transmission (SD value)
    0.009m
    Water vapour resistance (MNs/g value)
    0.045 MNs/g
    Water vapour permeability
    2735 g/m2 /day
    Water column
    W1
    Tensile Strength Longitude
    280
    Tensile Strength Transverse
    200
    Nail Tear Strength Longitude
    140
    Nail tear strength Transverse
    130
    Fire Rating
    E
    Installation temperature
    -40°C to + 80°C
    UV Stability
    4 months
    Dimensions and Weights
    Width
    1m
    Length
    50m
    Coverage
    50m2
    Packaging
    Number of Pieces per Pallet
    20
    Weight per Piece
    8 kg

    Installation

    • Permo Air should be installed in line with the details set out in the BBA Certificate and in accordance with BS5534
    • An unsupported underlay should provide a drape between rafters sufficient to ensure that water will run away from the batten fixing nail penetrations allowing draining from the eaves gutter
    • Contact between the membrane and the roof covering should be avoided during and after installation
    • Should be laid with a maximum drape of 15mm
    • An underlay support tray should be used at eaves to avoid ponding behind the fascia board and to provide a drip into the guttering

    Area of application

    • Suitable for Cold and Warm Roofs
    • Wind zones 1-3 with battened headlap. All wind zones with taped headlap

    Standards and Certifications

    10 Year Guarantee
    10 Year Guarantee
    10 Year Guarantee
    BBA
    CE

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