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Modulock Roof Channel Slotted Drain - 130x1000mm

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£20.56 Incl. VAT
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Harmer Modulock Channel Drain is a highly versatile linear drainage system designed to provide the ideal level access drainage solution where rainwater run-off and percolation are required.


  • A rainwater channel system in three sizes consisting of slotted sides with either grill or grate slotted grating.
  • Rainwater runoff is collated at hard surface level whilst percolation is relived at membrane level
  • Modulock slot sided channels can be used on podium decks, terraces and balcony areas in conjunction with Harmer Rainwater Outlets and Modulock Pedestal Support systems
  • Can be laid directly on the structural deck or fitted with height adjustable feet
  • A drainage system that intercepts rainwater and improves safety at point of access
  • Compatible with inverted roof, warm roof, green roof and podium deck construction


  • Threshold drainage with the level access requirements of part M
  • Pedestrian Load rated class K3
  • Channel lengths in a choice of three depths: 30mm, 40mm or 50mm
  • Modulock Channels form part of the overall drainage plan for most types of flat roof or deck construction.
  • Height adjustable feet elevate and correct cross falls and any irregularities in the supporting surface.
  • Buildings are protected from weathering at the venerable point where hard surface meets structure.

Materials & Finishes

  • Galvanised mild steel
  • Slotted grate

Installation & Fixing

  • Straight line end to end installation with simple location clips ensures the system is fully stable
  • Factory manufactured or site formed irregular angles accommodate change in direction


Length 1000mm Width 130mm


Material Galvanised Steel


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Modulock Roof Channel Slotted Drain - 130x1000mm

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