Double Roman Plus Concrete Interlocking Tile

A symmetrical deep roll profile that combines the character of traditional Victorian style with solid functionality.

  • Now available in a quality guaranteed coating solution - Marley M11 is underwritten by a 7-year quality guarantee on its coating
  • Supremely functional and versatile profile that performs well at all pitches
  • Highly cost-effective solution well suited for large housing projects
  • A large choice of aesthetic colours including Standard Through-colour and Antique


The perfectly symmetrical profile in the Victorian style is unique in South Africa. Its design has been optimised to make it exceptionally strong and highly cost-effective - well suited for large housing projects.

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.

Size of Tile

420 x 332mm

Minimum Pitch

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

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

10,42 tiles/m² (net) at 100mm headlap
9,66 tiles/m² (net) at 75mm headlap

Weight of Tiling

+ - 43,76kg/m²at 100mm headlap
+ - 40,57kg/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

402mm (nominal)