Extreme 200

Product Code: KU0170-1-11 KU0170-11-25

Part of The Specialist membrane range, Permo Extreme 200 is the UK's leading low pitched roof underlay. This waterproof membrane makes it the perfect solution for complex roofs, whilst it is also fitted with self-adhesive tape.

  • Offers design flexibility by enabling you to use tiles below their recommended minimum pitch
  • The fleece layer greatly reduces the risk of condensation forming
  • The TPU coating and self adhesive headlap tape ensures greater durability for a water and airtight seal
  • 200 g
    Permo-Extreme-200-1
    Extreme-200-2

    Compatible with:

    More Information

    Part of The Specialist membrane range, Permo Extreme 200 is a tear-resistant roof underlay designed for use on low pitched roofs, down to a minimum roof pitch of 12.5° for interlocking tiles, 15° for slates and 22.5° for plain tiles. This makes Extreme 200 roof membrane the perfect solution for extensions, particularly as the roll is available in a half-size for smaller projects. The membrane is fleece lined to control condensation, whilst it’s fitted with self-adhesive tape, which provides a permanent seal of overlaps and immediate weatherproofing protection against wind, rain and snow.

    Specifications

    Technical Data
    Colour
    Dark Blue
    Material
    Two-layered tear resistant membrane with monolithic TPU coating on PES fleece
    Minimum Pitch
    12.5°
    Wind zones BS5534 2014 Annex A
    1-5
    Weight per m²
    200 g
    Fire Rating
    E
    Dimensions and Weights
    Width
    1.5m
    Length
    50m
    Coverage
    75m2
    Packaging
    Number of Pieces per Carton/Pack
    1 Roll
    Number of Pieces per Pallet
    20
    Weight per Piece
    15 kg
    Weight per Pallet
    300 kg
    Technical Data
    Colour
    Dark Blue
    Material Description
    Two-layered tear resistant membrane with monolithic TPU coating on PES fleece
    Minimum Pitch
    12.5°
    Wind zones BS5534 2014 Annex A
    Zones 1-5
    Fire Rating
    E
    Dimensions and Weights
    Width
    1.5m
    Length
    25m
    Coverage
    37.5m2
    Packaging
    Number of Pieces per Carton/Pack
    1
    Number of Pieces per Pallet
    30
    Weight per Piece
    9 kg

    Installation

    • Butylon tape should be laid on top of the membrane and underneath where the battens are due to be fixed - it is essential that the batten nail passes through the tape
    • 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
    • Extreme 200 should be laid with a maximum drape of 15mm
    • Extreme 200 should be taped to 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

    • HR membrane so requires ventilation
    • Minimum roof pitch of 12.5° for interlocking tiles, 15° for slates and 22.5° for plain tiles
    • Wind zones 1-5

    Standards and Certifications

    10 Year Guarantee
    10 Year Guarantee
    CE Mark
    UKCA Mark

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