Sandtoft offers a range of tile and slate ventilators to suit different applications
and aesthetic requirements.
- Cowl Ventilators provide a practical solution for high level roof space and for connection to
soil or mechanical extraction pipes.
- Concealed Ventilators and Invisivents are designed to maximise the aesthetic features of the roof by being virtually
unseen once installed and can be used for both low and high level ventilation,
as well as for connection to soil or mechanical extraction pipes.
- Flexible pipes and pipe adaptors are available for connecting concealed ventilators to soil
or mechanical extraction pipes.

Notes
- Tile and slate ventilators must not be used on roof pitches below 22.5°. Where
the minimum roof pitch recommendation for a particular tile is greater than 22.5°
(for example clay pantiles) then this minimum roof pitch also applies to the ventilator.
- For airflow resistance advice please contact Technical Services on 0844 9395
999.