Permo Forte

Product Code: KU0044-07-1 KU0044-07-05-1 KU0044-07-11-1

Part of The Specialist membrane range, Forte is Klober's strongest roof underlay solution. The four-layer, vapour-permeable roof membrane includes a built-in grid and is available with or without self-adhesive tape.

  • A strong four-layer membrane, which includes a reinforced grid that offers additional safety benefits
  • BBA approved low resistance membrane
  • 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
  • 145 g
    Klober Permo Forte Roll
    Klober Permo Forte Underlay
    Klober Permo Forte Membrane Installed

    More Information

    Part of The Specialist membrane range, Forte is Klober's strongest roof underlay solution. Klober Permo Forte is a four-layer roof underlay with a built-in safety grid, which offers additional safety benefits. The low vapour resistance, permeable roof membrane is available with or without self-adhesive tape and is suitable for pitched roofs. The tape creates a durable water and airtight seal, to reduce energy loss and provide strong protection against winds. Permo Forte is a particularly effective solution for controlling condensation and is a BBA approved low resistance roof membrane.

    Specifications

    Technical Data
    Colour
    Anthracite
    Material
    Polypropylene
    BBA Standard Applicable
    00/3749
    BBA Standard Applicable
    99/3622
    Roof type for BBA standard
    Cold Ventilated and Warm Non-Ventilated and Cold Non Ventilated Pitched Roof Systems
    Wind zones BS5534 2014 Annex A
    Zones 1-4
    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
    10.9 kg
    Weight per Pallet
    218 kg
    Technical Data
    Colour
    Anthracite
    Material
    Polypropylene
    BBA Standard Applicable
    00/3749
    BBA Standard Applicable
    99/3622
    Roof type for BBA standard
    Cold Ventilated and Warm Non-Ventilated and Cold Non Ventilated Pitched Roof Systems
    Wind zones BS5534 2014 Annex A
    Zones 1-4
    Fire Rating
    E
    Dimensions and Weights
    Width
    1.1m
    Length
    50m
    Coverage
    55m2
    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
    Anthracite
    Material
    Polypropylene
    BBA Standard Applicable
    00/3749
    BBA Standard Applicable
    99/3622
    Roof type for BBA standard
    Cold Ventilated and Warm Non-Ventilated and Cold Non Ventilated Pitched 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
    10.9 kg

    Installation

    • Permo Forte 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 1-4 with battened headlap. All wind zones with taped headlap

    Standards and Certifications

    10 Year Guarantee
    10 Year Guarantee
    10 Year Guarantee
    BBA
    CE
    NSAI Certification img

    Top tips when installing roofing membranes

    When installing roofing membrane products, it’s important that steps are taken to ensure the process is safe and efficient. Here we have compiled seven top tips to think about before you get started...

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