Modulock Roof Channel Drains
Application

Designed to provide the ideal level access drainage solution where rainwater run-off and percolation are required to be intercepted at the perimeter of a building, or across thresholds and points of access into and out of a building, and then ducted away to drainage outlets.

Description

An advanced, linear, steel drainage range for use within a raised deck structure. Combining threshold drainage with the level access requirements of Building Regulations Approved Document M, it can be used in its own right, or especially with Harmer Modulock Raised Deck Supports.

Safety:

A drainage system which intercepts rainwater and improves safety at the point of access.

Protection:

Buildings are protected from weathering at the vulnerable point where hard surface meets structure. Ponding water is prevented and freeze-thaw attack on masonry is eliminated.

Performance:

The channel drain is part of the overall rainwater drainage plan for most types of flat roof or deck construction, including balconies and terraces within pedestrian areas permitting K3 class loading.

Versatility:

The channel drain can be used on podium decks, terraces and balcony areas in conjunction with Harmer Rainwater Outlets and Modulock Pedestal Support systems.

Compatibility:

Suitable for all types of raised deck construction where drainage at the facade and across entrances is a requirement. Compatible with inverted roof, warm roof, green roof and podium deck construction.

Application:

Designed to provide the ideal level access drainage solution where rainwater run-off and percolation are required to be intercepted at the perimeter of a building, or across thresholds and points of access into and out of a building, and then ducted away to drainage outlets.

General information

Material

Galvanized steel

Stainless steel, 1.4301 (304) grade

Specification data

Product Reference

Modulock Roof Channel Drains

Material

Galvanized steel

Stainless steel, 1.4301 (304) grade

Straight channel

See 'Options' below and insert requirements.

Grate

See 'Options' below and insert requirements.

Connections

MD39731

Corner connection. Galvanized steel. Depth: Adjustable 55–90 mm.

MD39732

'T' connection. Galvanized steel. Depth: Adjustable 55–90 mm.

MD39733

Cross connection. Galvanized steel. Depth: Adjustable 55–90 mm.

MD39736

Corner connection. Galvanized steel. Depth: Adjustable 90–150 mm.

MD39737

'T' connection. Galvanized steel. Depth: Adjustable 90–150 mm.

MD39738

Cross connection. Galvanized steel. Depth: Adjustable 90–150 mm.

MD39741

Corner connection. Stainless steel. Depth: Adjustable 55–90 mm.

MD39742

'T' connection. Stainless steel. Depth: Adjustable 55–90 mm.

MD39743

Cross connection. Stainless steel. Depth: Adjustable 55–90 mm.

MD39746

Corner connection. Galvanized steel. Depth: Adjustable 90–150 mm.

MD39747

'T' connection. Stainless steel. Depth: Adjustable 90–150 mm.

MD39748

Cross connection. Stainless steel. Depth: Adjustable 90–150 mm.

Outlet channel and trap

MD39700

Galvanized steel, closed. Depth: Fixed 55 mm.

MD39701

Galvanized steel, closed. Depth: Fixed 75 mm.

MD39702

Galvanized steel, closed. Depth: Fixed 140 mm.

MD39703

Galvanized steel, perforated. Depth: Adjustable 55–90 mm.

MD39704

Galvanized steel, perforated. Depth: Adjustable 90–150 mm.

MD39705

Stainless steel, closed. Depth: Fixed 55 mm.

MD39706

Stainless steel, closed. Depth: Fixed 75 mm.

MD39707

Stainless steel, closed. Depth: Fixed 140 mm.

MD39708

Stainless steel, perforated. Depth: Adjustable 55–90 mm.

MD39709

Stainless steel, perforated. Depth: Adjustable 90–150 mm.

MD39711

For 250 mm straight channel. Galvanized steel, closed. Depth: Fixed 55 mm.

MD39713

For 250 mm straight channel. Galvanized steel, perforated. Depth: Adjustable 55–90 mm.

MD39714

For 250 mm straight channel. Galvanized steel, closed. Depth: Fixed 90 mm.

MD39716

For 250 mm straight channel. Stainless steel, closed. Depth: Fixed 55 mm.

MD39718

For 250 mm straight channel. Stainless steel, perforated. Depth: Adjustable 55–90 mm.

MD39719

For 250 mm straight channel. Stainless steel, closed. Depth: Fixed 90 mm.

End plates

MD39370

Galvanized steel. Depth: Fixed 55 mm.

MD39371

Galvanized steel. Depth: Fixed 75 mm.

MD39372

Galvanized steel. Depth: Fixed 140 mm.

MD39373

Galvanized steel. Depth: Adjustable 55–90 mm.

MD39374

Galvanized steel. Depth: Adjustable 90–150 mm.

MD39380

Stainless steel. Depth: Fixed 55 mm.

MD39381

Stainless steel. Depth: Fixed 75 mm.

MD39382

Stainless steel. Depth: Fixed 140 mm.

MD39383

Stainless steel. Depth: Adjustable 55–90 mm.

MD39384

Stainless steel. Depth: Adjustable 90–150 mm.

MD39670

For 250 mm straight channel. Galvanized steel. Depth: Fixed 55 mm.

MD39671

For 250 mm straight channel. Galvanized steel. Depth: Fixed 90 mm.

MD39672

For 250 mm straight channel. Galvanized steel. Adjustable 55–90 mm.

MD39680

For 250 mm straight channel. Galvanized steel. Depth: Fixed 55 mm.

MD39681

For 250 mm straight channel. Galvanized steel. Depth: Fixed 90 mm.

MD39682

For 250 mm straight channel. Galvanized steel. Adjustable 55–90 mm.

MD42670

For 200 mm straight channel. Galvanized steel. Depth: Fixed 55 mm.

MD42680

For 200 mm straight channel. Stainless steel. Depth: Fixed 55 mm.

Maintenance access unit

-

Type

Not required

MD37801

Galvanized steel. 230 x 230 mm. Depth: Adjustable 55–90 mm.

MD37802

Galvanized steel. 400 x 400 mm. Depth: Adjustable 55–90 mm.

MD37804

Galvanized steel. 230 x 230 mm. Depth: Adjustable 90–150 mm.

MD37805

Galvanized steel. 400 x 400 Adjustable 90–150 mm

MD37821

Stainless steel. 230 x 230 mm. Depth: Adjustable 55–90 mm.

MD37822

Stainless steel. 400 x 400 mm. Depth: Adjustable 55–90 mm.

MD37824

Stainless steel. 230 x 230 mm. Depth: Adjustable 90–150 mm.

MD37825

Stainless steel. 400 x 400 Adjustable 90–150 mm

Grate

Not required

MD37830

Galvanized steel, mesh. 222 x 222 mm.

MD37831

Stainless steel, mesh. 222 x 222 mm.

MD37832

Galvanized steel, perforated. 222 x 222 mm.

MD37833

Stainless steel, perforated. 222 x 222 mm.

MD37834

Galvanized steel, mesh. 392 x 392 mm.

MD37835

Stainless steel, mesh. 392 x 392 mm.

MD37836

Galvanized steel, perforated. 392 x 392 mm.

MD37837

Stainless steel, perforated. 392 x 392 mm.

Accessories

Not required

Facade channel

Various options available; consult literature and insert details.

Facade corner pieces

Facade slot channel end plates

GR400 Access chamber

For green roofs. Grid grate.

GR400/AC Adjustable access cover

For green roofs. Grid grate.

GR400/EP Access chamber extension

For green roofs.

Gravel guard, 1000 mm

MD37851 Galvanized steel drainage duct, 2000 mm

MD37852 Galvanized steel drainage duct, 1000 mm

MD37861 Stainless steel drainage duct, 2000 mm

MD37862 Stainless steel drainage duct, 1000 mm

MD37970 Galvanized steel maintenance unit with outlet, 300 x 275 mm. Fixed 170 mm

MD37980 Stainless steel maintenance unit with outlet, 300 x 275 mm. Fixed 170 mm

MD38000 Stainless steel terrace channel, closed, 1000 mm. Fixed 100 mm

MD38010 Stainless steel terrace channel, closed, 1000 mm. Adjustable 80–130 mm

MD38020 Stainless steel terrace channel, perforated, 1000 mm. Fixed 100 mm

MD38030 Stainless steel terrace channel, perforated, 1000 mm. Adjustable 80–130 mm

MD38040 Stainless steel maintenance unit with outlet, 500 x 100 mm. Adjustable 81–130 mm

Slot grate, 1000 mm

Slot grate, 500 mm

Terrace corner pieces

Terrace slot channel end plates

Standard product features

Installation:

Straight line end-to-end installation with simple location clips ensures that the system is fully stable whilst butt joint, site-formed irregular angles accommodate changes in direction. Gratings adjust vertically within the channel to elevate and correct cross falls and any irregularities in the supporting surface.

Product Options

Straight channel:

The channel range is available in 130, 200 and 250 mm widths, with either variable or fixed depths. Two types of slot channel are also available.

- 130 mm wide:

Channel side type/ length/ depth/ product code for galvanized steel/ (for stainless steel):

  • Perforated/ 2000 mm/ Adjustable 55–90 mm/ MD39162/ (MD39262).
  • Perforated/ 2000 mm/ Adjustable 90–150 mm/ MD39182/ (MD39282).
  • Perforated/ 2000 mm/ Fixed 55 mm/ MD39132/ (MD39232).
  • Perforated/ 2000 mm/ Fixed 75 mm/ MD39142/ (MD39242).
  • Perforated/ 2000 mm/ Fixed 140 mm/ MD39152/ (MD39252).
  • Closed/ 2000 mm/ Fixed 55 mm/ MD39135/ (MD39235).
  • Closed/ 2000 mm/ Fixed 75 mm/ MD39145/ (MD39245).
  • Closed/ 2000 mm/ Fixed 140 mm/ MD39155/ (MD39255).
  • Perforated/ 1000 mm/ Adjustable 55–90 mm/ MD39161/ (MD39261).
  • Perforated/ 1000 mm/ Adjustable 90–150 mm/ MD39181/ (MD39281).
  • Perforated/ 1000 mm/ Fixed 55 mm/ MD39131/ (MD39231).
  • Perforated/ 1000 mm/ Fixed 75 mm/ MD39141/ (MD39241).
  • Perforated/ 1000 mm/ Fixed 140 mm/ MD39151/ (MD39251).
  • Closed/ 1000 mm/ Fixed 55 mm/ MD39134/ (MD39234).
  • Closed/ 1000 mm/ Fixed 75 mm/MD39144/ (MD39244).
  • Closed/ 1000 mm/ Fixed 140 mm/ MD39154/ (MD39254).
  • Perforated/ 500 mm/ Adjustable 55–90 mm/ MD39160/ (MD39260).
  • Perforated/ 500 mm/ Adjustable 90–150 mm/ MD39180/ (MD30280).
  • Perforated/ 500 mm/ Fixed 55 mm/ MD39130/ (MD39230).
  • Perforated/ 500 mm/ Fixed 75 mm/ MD39140/ (MD39240).
  • Perforated/ 500 mm/ Fixed 140 mm/ MD39150/ (MD39250).
  • Closed/ 500 mm/ Fixed 55 mm/ MD39133/ (MD39233).
  • Closed/ 500 mm/ Fixed 75 mm/ MD39143/ (MD39243).
  • Closed/ 500 mm/ Fixed 140 mm/ MD39153/ (MD39253).

- 200 mm wide (perforated):

Length/ depth/ product code for galvanized steel/ (for stainless steel):

  • 2000 mm/ Fixed 55 mm/ MD42432 (MD42532).
  • 1000 mm/ Fixed 55 mm/ MD42431 (MD42531).
  • 500 mm/ Fixed 55 mm/ MD42430 (MD42530).

- 250 mm wide:

Channel side type/ length/ depth/ product code for galvanized steel/ (for stainless steel):

  • Perforated/ 2000 mm/ Adjustable 55–90 mm/ MD39462/ (MD39562).
  • Perforated/ 2000 mm/ Fixed 55 mm/ MD39432/ (MD39532).
  • Perforated/ 2000 mm/ Fixed 90 mm/ MD39452/ (MD39552).
  • Closed/ 2000 mm/ Fixed 55 mm/ MD3943/5 (MD39535).
  • Closed/ 2000 mm/ Fixed 90 mm/ MD39455/ (MD39555).
  • Perforated/ 1000 mm/ Adjustable 55-90 mm/ MD39461/ (MD39561).
  • Perforated/ 1000 mm/ Fixed 55 mm/ MD39431/ (MD39531).
  • Perforated/ 1000 mm/ Fixed 90 mm/ MD39451/ (MD39551).
  • Perforated/ 1000 mm/ Unequal fixed 45/55 mm/ MD39476/ (MD39576).
  • Perforated/ 1000 mm/ Unequal fixed 90/100 mm/ MD39471/ (MD39571).
  • Closed/ 1000 mm/ Fixed 55 mm/ MD39434/ (MD39534).
  • Closed/ 1000 mm/ Fixed 90 mm/ MD39454/ (MD39554).
  • Perforated/ 500 mm/ Adjustable 55-90 mm/ MD39460/ (MD39560).
  • Perforated/ 500 mm/ Fixed 55 mm/ MD39430/ (MD39530).
  • Perforated/ 500 mm/ Fixed 90 mm/ MD39450/ (MD39550).
  • Closed/ 500 mm/ Fixed 55 mm/ MD39433/ (MD39533).
  • Closed/ 500 mm/ Fixed 90 mm/ MD39453/ (MD39553).

Corner, cross and 'T' connections:

These prefabricated components provide a continuous change of direction and slot together with the straight channels. Depths are adjustable.

Grate:

A range of options is available, including:

- Grate type/ length/ product code for galvanized steel/ (stainless steel):

  • Slotted/ 1000 mm/ MD37302/ (MD37332).
  • Slotted/ 5000 mm/ MD37303/ (MD37333).
  • Mesh/ 1000 mm/ MD37300/ (MD37330).
  • Mesh/ 500 mm/ MD37301/ (MD37331).
  • Perforated/ 1000 mm/ MD37304/ (MD37334).
  • Perforated/ 500 mm/ MD37305/ (MD37335).
  • Longitudinal bar/ 1000 mm/ MD37306/ (MD37336).
  • Longitudinal bar/ 500 mm/ MD37307/ (MD37337).
  • Cross bar/ 1000 mm/ MD37308/ (MD37338).
  • Cross bar/ 500 mm/ MD37309/ (MD37339).
  • Ray/ 1000 mm/ MD37310/ (MD37340).
  • Ray/ 500 mm/ MD37311/ (MD3734).
  • Mesh/ 1000 mm/ MD42600/ (MD42630). For 200 mm straight channel.
  • Mesh/ 500 mm/ MD42601/ (MD42631). For 200 mm straight channel.
  • Mesh/ 1000 mm/ MD39600/ (MD39630). For 250 mm straight channel.
  • Mesh/ 500 mm/ MD39601/ (MD39631). For 250 mm straight channel.
  • Perforated/ 1000 mm/ MD39606/ (MD39636). For 250 mm straight channel.
  • Perforated/ 500 mm/ MD39607/ (MD39637). For 250 mm straight channel.
  • Longitudinal bar/ 1000 mm/ MD39602/ (MD39632). For 250 mm straight channel.
  • Longitudinal bar/ 500 mm/ MD39603/ (MD39633). For 250 mm straight channel.
  • Cross bar/ 1000 mm/ MD39604/ (MD39634). For 250 mm straight channel.
  • Cross bar/ 500 mm/ MD39605/ (MD39635). For 250 mm straight channel.

Outlet channel and trap:

The outlet channels slot together with the straight channels. The depths can be adjustable or fixed, with a choice of perforated or open sides. The trap fits inside the outlet of the channel.

End plates:

End plates form a stop to the channel drain and are available to suit fixed height or adjustable height straight channels. Vermin are prevented from using the channel as a means of escape.

Maintenance access units:

Access units provide an efficient means of maintaining an unobstructed waterway within the channels.

- Grates:

The grates to the maintenance access units provide protection to the drainage system, whilst giving additional rainwater drainage to paved areas.

Accessories:

- Access Chamber Extension Piece:

Stackable PU access frame extension 400 x 400 mm with height adjustment 50–80 mm.

- Adjustable Access Cover:

Moulded PU access frame 400 x 400 mm with galvanized carbon steel 9 x 32 mm aperture grating and fitted with adjustable feet for fine height adjustment on-site. Can be combined with Access Chamber Extension Piece to raise the height in increments of 50–80 mm.

- Access chamber:

Moulded PU access frame 400 x 400 mm with galvanized carbon steel 9 x 32 mm aperture grating. The perforated 600 mm high chamber can be cut down on-site to 220 mm. Adjustable feet also allow fine height adjustment during installation.

- Facade slot channels:

The Slot Channel Drains take up the minimum amount of space to provide drainage of facade rainwater run-off. The channel lengths are connected together via a tongue and groove joining mechanism.

- Slot grate:

The slot grate offers a visually unobtrusive method of providing drainage of rainwater run-off to facade elements.

- Terrace slot channels:

The stainless steel slot channel drains take up the minimum amount of space to provide drainage of terrace rainwater run-off. The channel lengths are connected together via a tongue and groove joining mechanism.

Literature
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