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    Halflap cladding

    Halflap cladding (©Michele Panzeri)Halflap cladding detail
    Jointed sweet chestnut halflap | VHL6 ©Michele PanzeriJointed oak halflap | VHL5

    Halflap cladding is a machined profile supplied with a smooth finish and an overlapping edge detail to create a waterproof façade. The halflap profile creates a clean linear appearance which is ideal for contemporary new-builds and modern extensions to older properties. Halflap cladding can be fixed vertically and horizontally although care should be taken to select the correct profile version (Ref technical page).

    Our standard range of halflap profiles offers a choice of shadow gap depth ranging from 2mm to 11mm to suit specific design requirements. Alternatively we can produce bespoke halflap profiles to customer specifications.

    All air-dried species can be machined to halflap. The most popular choices are British sweet chestnut, British oak and Canadian western red cedar.

    Technical Specification

    Profile name Halflap
    Profile code VHL1, VHL2, VHL3, VHL4, VHL5, VHL6, VHL7
    Appearance Modern / contemporary
    Surface finish Planed
    Orientation Horizontal or vertical
    Location External only
    Length Random lengths from 2.0 – 4.0 metres, depending on specie.
    VHL1 – VHL6
    Depth Overall Width Cover
    20mm 95mm 87mm
    20mm 120mm 112mm
    20mm 145mm 137mm
    20mm 195mm 187mm
    Depth Overall Width Cover
    20mm 95mm 83mm
    20mm 120mm 108mm
    20mm 145mm 133mm
    20mm 195mm 183mm
    Profiles (vertical) VHL1VHL2VHL3VHL4VHL5VHL6VHL7
    Available in
    Larch Delete-icon
    Western red cedar Accept-icon
    Siberian larch Accept-icon
    Canadian western red cedar Accept-icon
    Jointed oak Accept-icon
    Jointed sweet chestnut Accept-icon
    Green oak Delete-icon
    Elm Delete-icon
    When to fix Year round. Ideally September to March
    How to fix Face fix only. One per fixing board / batten
    A gap of 2mm should be left between each board
    Profiles (horizontal) Horizontal Attachment
    Begin at the bottom, ensuring that the first board is level with the lap that is adjacent to the wall, pointing upwards. For boards up to 150mm wide, use a single fixing located 25 – 30mm above the lower lap. Never nail through the lap joint. For boards over 150mm, use two fixings, with the second located a further 65 – 75mm above the first to allow for some dimensional movement.Vertical attachmentStart at one corner, with the lap that is adjacent to the wall, facing away. Nail as with the horizontal attachment.Halflap over 150mm_Face fixHalflap up to 150mm_Face fix
    Batten thickness 35mm
    Batten spacing 400 – 500mm
    Nail length 50mm
    Further information Click here for further fixing advice
    Special or bespoke profiles up to 200mm wide can be provided. However, for external cladding, it is generally recommended that boards do not exceed 150mm in width.
    While the utmost care has been taken to provide accurate information, Vastern Timber shall not be held responsible for any consequences arising from any errors or omissions on this website nor for any damages resulting from the use of the information.

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