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    Picture of A Type Universal Valley Trough

    A Type Universal Valley Trough

    73087
    Installation

    Valley boards should be fitted of sufficient width to provide support for the roofing battens, either: min.12mm ply lay boards set between rafters, or 6mm continuous ply boards laid over the rafters.
    A single strip of roofing underlay should be laid up the centre of the valley.
    Counter battens the same depth as the roofing battens should be fitted onto the valley boards.
    The main roofing underlay should be laid over th counter batten. Roofing battens should be fitted with the ends firmly located onto the valley boards, positioned close to the counter batten, with care taken to avoid damaging the underlay.
    The fascia board should be cut to allow the GRP valley trough to pass through and discharge into the gutter without flattening out. The end of the GRP valley trough should be trimmed using a fine toothed hacksaw to the appropriate centre line of the gutter - which normally entails a ‘v’ shaped cut.
    The GRP valley trough should be fitted with care taken to ensure it is centrally located between the valley boards: the sides should be nailed to the counter battens at max: 500mm centres.
    Warning: Concealed water troughs behind the mortar bonding strip MUST be kept clear and not blocked with mortar. Take care to maintain correct width between cut edges. NFRC recommend that tiles should not be cut in situ and should not be laid dry and then back fill pointed.

    Properties

    LEAD REPLACEMENT
    GRP lasts as long as lead, is tougher, cheaper, more resistant to accidental damage, and is less prone to theft or vandalism. Using preformed GRP valley troughs saves significant installation time over traditional methods. Roofers report elimination of many problems with valley troughs when changing from lead to CORODRAIN GRP. Coloured lead grey as standard (other colours available on request).

    DURABILITY
    Made with high quality un-filled polyester resin with glass fibre reinforcement for maximum strength. A tough bonded melinex film gives excellent weathering performance. Minimum life of 30 years.

    MANUFACTURED IN UK
    Manufactured to BS EN ISO 9001:2008 quality standard, our automated continuous pultrusion plant in Coventry. All available from stock for rapid delivery to site.

    NO MAINTENANCE
    The inherent qualities of the materials make the valleys UV light and acid rain resistant, and the smooth surface finish inhibits the growth of moss, lichen and the build up of debris.

    Valley Weights

    Standard valley troughs: 1.64kg/m²

    Heavy Duty valley troughs: 2.10kg/m²


    Valley Thicknesses

    Standard valley troughs: 1.3mm

    Heavy Duty troughs: 1.6mm
    £24.64
    Picture of B Type Valley Trough

    B Type Valley Trough

    73086
    Installation

    Valley boards should be fitted of sufficient width to provide support for the roofing battens, either: min.12mm ply lay boards set between rafters, or 6mm continuous ply boards laid over the rafters.
    A single strip of roofing underlay should be laid up the centre of the valley.
    Counter battens the same depth as the roofing battens should be fitted onto the valley boards.
    The main roofing underlay should be laid over th counter batten. Roofing battens should be fitted with the ends firmly located onto the valley boards, positioned close to the counter batten, with care taken to avoid damaging the underlay.
    The fascia board should be cut to allow the GRP valley trough to pass through and discharge into the gutter without flattening out. The end of the GRP valley trough should be trimmed using a fine toothed hacksaw to the appropriate centre line of the gutter - which normally entails a ‘v’ shaped cut.
    The GRP valley trough should be fitted with care taken to ensure it is centrally located between the valley boards: the sides should be nailed to the counter battens at max: 500mm centres.
    Warning: Concealed water troughs behind the mortar bonding strip MUST be kept clear and not blocked with mortar.Take care to maintain correct width between cut edges. NFRC recommend that tiles should not be cut in situ and should not be laid dry and then back fill pointed.

    Properties

    LEAD REPLACEMENT
    GRP lasts as long as lead, is tougher, cheaper, more resistant to accidental damage, and is less prone to theft or vandalism. Using preformed GRP valley troughs saves significant installation time over traditional methods. Roofers report elimination of many problems with valley troughs when changing from lead to CORODRAIN GRP. Coloured lead grey as standard (other colours available on request).

    DURABILITY
    Made with high quality un-filled polyester resin with glass fibre reinforcement for maximum strength. A tough bonded melinex film gives excellent weathering performance. Minimum life of 30 years.

    MANUFACTURED IN UK
    Manufactured to BS EN ISO 9001:2008 quality standard, our automated continuous pultrusion plant in Coventry. All available from stock for rapid delivery to site.

    NO MAINTENANCE
    The inherent qualities of the materials make the valleys UV light and acid rain resistant, and the smooth surface finish inhibits the growth of moss, lichen and the build up of debris.

    Valley Weights

    Standard valley troughs: 1.64kg/m²

    Heavy Duty valley troughs: 2.10kg/m²


    Valley Thicknesses

    Standard valley troughs: 1.3mm

    Heavy Duty troughs: 1.6mm
    £23.64
    Picture of EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 100mm Grey

    EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 100mm Grey

    38027
    "Bostik Flashband Original is a self-adhesive bitumen sealing strip which bonds instantly to provide a permanent watertight seal. It has excellent adhesion to a wide range of building materials including brick, masonry, slates, concrete roof tiles, wood, metal, concrete, terracotta tiles, glass, roofing felt, and rigid plastics.Applications include repairing lead flashing, sealing valley gutters, mending leaks in drain pipes and guttering and repairing roofing felt joints on flat roofs. Provides an instant watertight seal. For new build or emergency repairs. Quick and easy application."
    £14.96
    Picture of EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 150mm Grey

    EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 150mm Grey

    38028
    "Bostik Flashband Original is a self-adhesive bitumen sealing strip which bonds instantly to provide a permanent watertight seal. It has excellent adhesion to a wide range of building materials including brick, masonry, slates, concrete roof tiles, wood, metal, concrete, terracotta tiles, glass, roofing felt, and rigid plastics.Applications include repairing lead flashing, sealing valley gutters, mending leaks in drain pipes and guttering and repairing roofing felt joints on flat roofs. Provides an instant watertight seal. For new build or emergency repairs. Quick and easy application."
    £22.42
    Picture of EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 225mm Grey

    EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 225mm Grey

    38032
    "Bostik Flashband Original is a self-adhesive bitumen sealing strip which bonds instantly to provide a permanent watertight seal. It has excellent adhesion to a wide range of building materials including brick, masonry, slates, concrete roof tiles, wood, metal, concrete, terracotta tiles, glass, roofing felt, and rigid plastics.Applications include repairing lead flashing, sealing valley gutters, mending leaks in drain pipes and guttering and repairing roofing felt joints on flat roofs. Provides an instant watertight seal. For new build or emergency repairs. Quick and easy application."
    £33.70
    Picture of EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 300mm Grey

    EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 300mm Grey

    38033
    "Bostik Flashband Original is a self-adhesive bitumen sealing strip which bonds instantly to provide a permanent watertight seal. It has excellent adhesion to a wide range of building materials including brick, masonry, slates, concrete roof tiles, wood, metal, concrete, terracotta tiles, glass, roofing felt, and rigid plastics.Applications include repairing lead flashing, sealing valley gutters, mending leaks in drain pipes and guttering and repairing roofing felt joints on flat roofs. Provides an instant watertight seal. For new build or emergency repairs. Quick and easy application."
    £44.86
    Picture of EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 75mm Grey

    EVO-STIK Flashband Waterproof Self Adhesive Flashing Tape 10mtr 75mm Grey

    38026
    "Bostik Flashband Original is a self-adhesive bitumen sealing strip which bonds instantly to provide a permanent watertight seal. It has excellent adhesion to a wide range of building materials including brick, masonry, slates, concrete roof tiles, wood, metal, concrete, terracotta tiles, glass, roofing felt, and rigid plastics.Applications include repairing lead flashing, sealing valley gutters, mending leaks in drain pipes and guttering and repairing roofing felt joints on flat roofs. Provides an instant watertight seal. For new build or emergency repairs. Quick and easy application."
    £11.24
    Picture of Leadax Multi Purpose Scissors

    Leadax Multi Purpose Scissors

    38037
    High quality, extra tough scissors for cutting Leadax to size quickly and easily.
    £46.83
    Picture of Leadax Roller

    Leadax Roller

    38006
    To allow easy moulding of Leadax around roof tiles or difficult profiles.
    £27.29
    Picture of Leadax Sealant 290ml

    Leadax Sealant 290ml

    38042
    An all purpose hybrid sealant & adhesive for fixing Leadax to the base material or for overlapping. Provides good adhesion to lead & roofing substrates.
    £9.70
    Picture of Soudal Lead Sealant Grey

    Soudal Lead Sealant Grey

    41020
    Soudal Trade Lead Sheet Sealant is a low modulus neutral cure silicone. Excellent adhesion to most building materials - all types of lead (BS:EN 12588 (1999) compatible, milled, rolled, sand cast, water-cooled), other metals, brickwork, concrete, granite, marble, slate, cement, stone and roofing tiles.
    £6.64