ICB (International Construction Bureau) Limited Alwitra rainwater outlets and accessories are designed for use with ICB's Evalon or Evalastic single layer roofing systems.

Outlets connect directly to O-ring socketed PVC pipework or, using a PVC to cast iron adaptor or cold caulking, to BS 416 socketed cast iron pipework. Other connections can be made using ACO Building Drainage flexible couplings or heat shrink sleeving. Vertical spigot outlets are available with either domed or flat gratings. Flat gratings are used where vehicles or pedestrian traffic are likely.

Standard product features

Material:

  • Body: Thermally insulated injection moulded rigid polyurethane.
  • Connecting pipe: Polyethylene.

Grating:

  • Flat grating (flush sieve) and O-ring.

Options

Material:

Flange: Evalon or Evalastic flexible flange for connecting to Evalon or Evalastic single layer roof coverings.

Accessories:

  • Flexible bellows connectors: Neoprene rubber for use on lightweight roofs subject to movement and vibration caused by wind pressure and suction, plant, etc.
  • Gravel guard: To protect outlet in shingle ballasted systems.
  • Heating element: 24 volt system to prevent freezing.

NBS Specification

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This product is associated with the following NBS Create clause:
90-10-20/302 Gravity rainwater outlets

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Alwitra, Product of ICB (Waterproofing) Ltd

Tel:

+44 (0)1202 785200

Product reference

Alwitra Rainwater Outlet

Type

[30 mm Alwitra PVC outlet]
[50 mm Alwitra PVC outlet]
[70 mm Alwitra PVC outlet]
[150 mm PVC outlet]
[100 mm Alwitra Horizontal outlet]
[100 mm Alwitra Standard outlet]
[125 mm Alwitra Standard outlet]
[100 mm Alwitra Universal outlet]
[125 mm Alwitra Universal outlet]

Flange

[Evalastic]
[Evalon]

Grating

[Domed]
-
Consult manufacturer for details.
[Flat]
-
Standard.

Accessories

[Flexible bellows connector]
[Gravel guard]
[Heating element]
[Reducer, 100 to 70 mm]
[Reducer, 125 to 70 mm]
[Reducer, 125 to 100 mm]

Manufacturer details

Unit 9-11,
Fleets Industrial Estate,
Willis Way,
Poole,
Dorset, BH15 3SU
Tel +44 (0)1202 785200
Fax +44 (0)1202 785201
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