Air Admittance Valves (AAV’s) allow air to freely enter the sanitary pipe work system and prevents the escape of foul gases into the building. They are suitable for 32-110mm waste and soil pipes.
- Removes the need to penetrate the outer roof shell
- Prevents the loss of water from traps and seals
- Saves on cost of additional pipes and fittings
- Labour cost savings
- Environmentally friendly – no foul gases emitted