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Roof Vent mk3 Cottage Style

Installation Advice

  • Fit ventilators between each pair of rafters, along the full length of the eaves and along both sides of the building to create a cross flow ventilation action
  • The ventilator should be positioned so that the front grille is flush with the outside face of the facing brickwork
  • Any gap which is left between the top of the brick and the bottom of the front grille of the vent should be made good
  • Usually a single row of vents will be adequate, however, with shallow pitch roofs, room in the roof applications or where very thick roof insualtion is used, the tray part of the ventilators may need to be extended. This can be achieved by using extra rows of the appropriate roof vent mk3
  • nbs plus
  • riba

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