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Manthorpe Alpha Vent for Slates 10,000mm2 - 600mm x 300mm

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£10.62 Incl. VAT
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The GRSV30/25 Slate Vent is manufactured as standard for 600 x 300 slates but can be easily trimmed to fit 500 x 250 slates using the pre-marked cut lines.

It can be used for both high and low-level roof ventilation requirements. Alternatively, it can also be used as an outlet terminal for extraction fans and soil pipe ventilation when used in conjunction with a Manthorpe GRPA Flexible Pipe.

  • Allows 10000mm2 airflow per vent
  • UV Stabilised Polypropylene
  • The hood of the GRSV30/25 features a 4mm fly screen to prevent blockage from falling debris and entry of large insects into the roof space

The GRSV30/25 has been extensively and independently wind tunnel tested to the following standards:-

  • BS 6367 Deluge test 225mm/hour rainfall
  • Driving rain test down to a roof pitch of 15 degrees with an up roof wind speed of 13m/s
  • Rainfall rate of 200mm / hour to generate a fine penetrative spray

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Manthorpe Alpha Vent for Slates 10,000mm2 - 600mm x 300mm

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