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Harcon Corodrain HB30 Standard B-Type Valley for Slate & Plain Tiles - 3m

Additional Information

Product code: HB30
Brand: Harcon
Estimated delivery: 2-3 Days
£13.57 inc vat
£11.31 ex vat
  • 1+ £13.57
    inc vat
    ex vat
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The Corodrain B Type Valley Trough is for use with double lap slates and tiles, which are dry bedded. There is a standard (type:HB) and heavy duty (type:BX) option. The valley fixes over the batten for fast and simple installation.


Suitable for use on roofs with pitches from 17.5° to 55°.
Can accommodate a maximum difference between two rafter pitches of 15°.
Designed for use with natural slate, manufactured slate and plain tiles.


Length: 3m.
Width: 330mm.
Weight: 1.83kg per m2.
Thickness: 1.3mm.
Colour: grey / blue.
Material: GRP - high quality unfilled polyester resin with glass fibre reinforcement.

Valley selection table

 Roof area less than 25m2

  Roof area 25m2 to 100m2 
Rafter PitchValley TypeMax. Valley Length

Valley TypeMax. Valley LengthMinimum Lap Length
17.5-22°B / D7m--350mm
22.5-29°A / B / D7mB / D14.5m300mm
30-34°A / B / D7.5mB / D15m200mm
35-39°A / B / D7.5mB / D15.5m200mm
40-44°A / B / D8mB / D16.5m150mm
45-49°A / B / D8.5mB / D17m150mm
50-55°B / D9mB / D18.5m150mm

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All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlandsand Islands, a member of our helpline team will contact you prior to processing your ordershould an additional delivery charge apply.

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Harcon Corodrain HB30 Standard B-Type Valley for Slate & Plain Tiles - 3m

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Harcon Corodrain HB30 Standard B-Type Valley for Slate & Plain Tiles - 3m

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