Breathable Roofing Felt - Breather Membrane - Permavent Eco - 1.5m x 50m Roll UK

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Seller: Top-Rated Seller rubbercover ✉️ (20,142) 99.1%, Location: alfreton, Derbyshire, GB, Ships to: GB, Item: 266430137646 Breathable Roofing Felt - Breather Membrane - Permavent Eco - 1.5m x 50m Roll UK.

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    Breathable Roofing Felt - Breather Membrane - Permavent Eco - 1.5m x 50m Roll UK
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    Description

    Permavent Eco Breather Membrane 1.5m x 50m Roll Lightweight Breather Membrane

    For use on all types of domestic and commercial roofing and walling applications, including:  cold non vented traditional hybrid cold vented Scottish and fully boarded applications

    Suitable for use in zones 1 to 4*.  (Wind Zones in the UK for underlays used for specific applications as described in BS 5534)

    Free delivery to mainland uk postcodes !!! Orders placed before 12 noon Monday - Friday will be delivered the next working day (mainland uk only other areas 3-5 working days) For further product information please contact us 01773 608808 or 0800 161 3722 scott @ permaroof.co.uk

    DESCRIPTION

    Permavent uses the latest technology from the medical industry to encapsulate the highest grade hydrophobic film inside the very highest quality spunbond polypropylene layers. Unlike other companies, who simply stick the different layers together, Permavent membranes are manufactured in a single process that greatly improves the quality and integrity of our membranes. This 3 in 1 process means that Permavent offer the best performing breather membranes in their class with superior strength, breathability, flexibility and durability.

    Permavent-ECO is also fully certified under the CE having been tested and certified by independent European laboratories and is only manufactured under the strictest ISO requirements.

    Permavent membranes are certified for use in all types of roofing and walling applications and conform fully with: BS 5250: 2011 Code of practice for control of condensation in buildings. BS 5534: 2014 Code of practice for slating and tiling. BS 8000-6: 1990 Workmanship on building sites. BS EN 1991-1-4; 2005 +A1: 2010 +UK NA. BS EN 13859: Flexible sheets for underlays. BS EN 13501-1 2007.

    REQUIREMENTS OF BS 5534 ANNEX A FOR WIND UPLIFT

    NOTE 1: The figures are based on BRE Digest 489. For greater clarity users are advised to refer to the enlarged version of this document (available on our website). NOTE 2: Zone suitability applies only for underlays in applications where a well-sealed ceiling is present, ridge height is not greater than 15m, roof pitch is between 12.5° and 75°, site altitude is not greater than 100m and no significant site topography is present. Other applications might require underlays with greater wind uplift resistance and it is advisable to seek professional advice.

    Geographical wind zone Design wind pressure, Pu, for underlay (N/m2)
    Well sealed ceiling (e.g. standard domestic application) Minimum requirement
    5 1600
    4 1330
    3 1150
    2 975
    1 820
    Not sealed or non-ceiling (e.g. garage or warehouse) 1900
    Not sealed or non-ceiling in addition to permanent structural opening (e.g. car port or open store) 2350

    PHYSICAL PROPERTIES
    Weight, g/m2 90
    Water tightness, class w1
    Water vapour transmission (sd),m 0.02
    Maximum tensile force (MD), N/50mm 200
    Maximum tensile force (CD), N/50mm 150
    Elongation at max. tensile force (MD), % 65
    Elongation at max. tensile force (CD), % 55
    Resistance to tearing MD (nail shank), N 100
    Resistance to tearing CD (nail shank), N 90

    PERMAVENT APEX WIND UPLIFT RESULTS
    Batten gauge Declared Wind Uplift Resistance, PD (N/m2) Zone Suitability
    ?345 mm (maximum gauge, large format tiles) Taped lap: 1539 1 to 4 (All aplications)
    Batten restrained lap: not test -
    ?250mm (600mm slates) Taped lap: >2500 1 to 5 (All aplications)
    Batten restrained lap: 1510 1 to 4 (All aplications)
    Please see our e-bay store for more flat roof products!!

    • Condition: New
    • Material: BREATHER MEMBRANE
    • Coverage: 50M2
    • Item Length: 50M
    • Bundle Listing: No
    • Suitable For: Roof Space
    • Brand: Permavent
    • Type: Vapour Barrier
    • Model: PERMAVENT ECO
    • Features: BREATHABLE MEMBRANE
    • Featured Refinements: Roofing Felt
    • Country/Region of Manufacture: United Kingdom
    • Fire Rating: A1
    • Item Width: 1.5 m

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    •  Popularity - 81 watchers, 0.4 new watchers per day, 183 days for sale on eBay. Super high amount watching. 155 sold, 10 available.
    •  Best Price -
    •  Seller - 20,142+ items sold. 0.9% negative feedback. Top-Rated Plus! Top-Rated Seller, 30-day return policy, ships in 1 business day with tracking.

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