Vents to Cavity?

Patrickof

Hi,

I inspected a 2007 (block) build in the last few days and noticed that the external vents have no corresponding internal orifices? The only visible vents internally are the cooker extractor hood and the bathroom active vents. Is this a problem?

I have no documentation or evidence to suggest that the cavity is or isn't filled, it probably isn't.

mickdw

Sounds like builder was fitting vents and owner siad he didnt want them. They should run to internal and be a permanent vent. To be honest though, in exposed areas, they dont work and sometimes a controllable window vent or something like that is a better option. This would not comply with the building regs though

Patrickof

No, the owner didn't request they be left like that. The house is in an estate and isn't really exposed (as, say, a one off house might be)

Badly finished house, for a 2007 build - no heating controls other then TRVs and an on/off timer - no thermostats anywhere, not even a TRV on the cylinder.

The windows have no trickle vents either, there's already a small bit of damp in one room around the window (house is vacant).

Amazing the stuff that was gotten away as recently as 2007.

SilverBER

Do you think that the 2 external vents might have a 100mm pipe behind them that takes the fumes from the kitchen and bathroom?

Patrickof

No, the bathroom and cooker vents are slightly different on the outside, and are too far away to be connected to the passive (but going nowhere) vent covers. The upstairs bathroom vents are piped to the roof through the attic.

SilverBER

They could also be vents for the lobby areas.