Aldershaw manufactures a through-tile ventilator that can be connected to a soil pipe or a Vent-axia type outlet.

The tile vents ensure that the aesthetic of the roof is not spoiled with a plastic pipe or blister. They match the roof and are virtually invisible from ground level.

A 3-piece vent is also available, which also provides an entry point for bats seeking refuge.

Louvered ridges can also be supplied.