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On 1995 multi-storey house,
1.why two vents on each floor ?
2.I could feel cold draft coming in during winter so i just blocked them all. Any potential problems?
3. Got an evaporative air-cond installed and would like to use these vent to release air pressure instead of openning windows(security reason) . Could this be the solution?
Thank you
Hello @Onearmman
Thanks for sharing your question about the vents in your wall. The vents in your wall serve several purposes, first, if there is a gas point on the wall for a gas heater, by law, there must be a cavity wall vent, and a ceiling vent for ventilation. Second, they regulate the flow of air and moisture in your home, blocking them up traps the moisture inside your wall leading to mould infestation.
I don't recommend blocking the vents as they help balance the air quality inside your home. They might also be connected to a whirlybird system on the roof. Others might argue that they don't do anything, but my point is that these vents were placed there for a reason.
In regards to your evaporative air-conditioning system, I suggest speaking to the manufacturer regarding using these vents to release air pressure.
If you have any other questions we can help with, please let us know.
Eric
