Double Roman Concrete Tile

A 2000 year bold roll profile that combines classic and modern aesthetics with precision-engineered functionality

Advantages
  • Most comprehensive quality guaranteed coating solution - 22-year quality guarantee on Marley M22 coating and a 7-year quality guarantee on Marley M11
  • Supremely functional and versatile profile that performs well at all pitches
  • Extra-bold roll creates roofs of outstanding character with the strength and durability of a concrete interlocking tile
  • A large choice of aesthetic colours and finishes including Antique, Standard Through-Colour

    ColoursAndSamples_Description_SA

    A modern version of the roll profile seen on roofs throughout Europe for over 2000 years, the Marley Double Roman offers all the functional benefits of today’s interlocking concrete tile technology.

    Size of Tile

    420 x 332 mm

    Minimum Pitch

    17,5ᴼ (100mm headlap)
    26ᴼ (75mm headlap optional)

    Maximum Pitch

    45ᴼ (Above maximum pitch consult Marley Roofing)

    Minimum Headlap

    75mm (for pitch of 26ᴼ and above)
    100mm (for pitches of 17,5ᴼ to 26ᴼ)

    Maximum Gauge

    320mm (100mm headlap and at pitches between 17,5ᴼ and 26ᴼ)
    345mm (75mm headlap and at pitches of 26ᴼ and above)

    Cover Width

    301mm (nominal at lock mid shuffle position)

    Covering Capacity

    10,38 tiles/m² (net) at 100mm headlap
    9,63 tiles/m² (net) at 75mm headlap

    Weight of Tiling

    + - 46,7kg/m²at 100mm headlap
    + - 43,4kg/m² at 75mm headlap

    Battens Required

    3,13 lin.m/m² at 100mm headlap
    2,9 lin.m/m² at 75mm headlap

    Batten Size Recommended

    38 x 38mm for rafters/supports not exceeding 760mm centres
    38 x 50mm (batten fixed flat) for rafters/supports not exceeding 900mm centres
    38 x 50mm (batten on edge) for rafters/supports not exceeding 1 000mm centres

    Note: Above 760mm the rafter spacing can be increased only with engineer-designed trusses and with 38 x 50mm batten of the correct grade. All structural timber must comply with S.A National Standards.

    Tile Nails

    75mm Corrosion-resistant tile fixing nails

    Hanging length

    392mm (nominal)




    Additional Notes

    Marley Undertile Membrane or Radiant Barrier is recommended at all pitches in exposed and coastal areas.

    The minimum pitch and minimum headlap must not be reduced under any circumstance. It is always better to raise the safety factor of the roof by adding a full course of tiles and increasing the tile headlap evenly on the rafter length.

    In exposed areas the tile headlap may be increased, but greater lap is not as effective as a steeper pitch.

    Due to natural variations in the raw materials and the occasional occurrence of efflorescence on concrete products, absolute colour uniformity on the roof cannot be guaranteed with Standard Through colour tiles.

    All tiling and fixing to comply with SANS 10062 and 10400L code of practice.

    Here at Marley Roofing, we are always on hand to offer practical and experienced support