Customer has an oldish kitchen extension about 3m square.
Problem is mould in the kitchen cupboards, even in summer. (In winter, plinth heaters dry things out)
Reason seems to be lack of underfloor vents, the boards are about level with the paving outside.
It seems to be like this:
View media item 48897
I'm a plumber not a builder.
How can they get ventilation to the underfloor space, eg where the red arrow goes??
The paved area has drainage, so I don't think water's getting through the wall.
The "kitchen" the extension is built off is much larger, ~ 4m x 10m, and that does have original masonry grilles at the level where I've shown "render band". I assume there's some sort of Z shaped way through from those.
So it's this "sticking out" bit of the kitchen which has the problem.
Peering down though gaps between the boards under the K cupboards I can't see signs of damp.
Problem is mould in the kitchen cupboards, even in summer. (In winter, plinth heaters dry things out)
Reason seems to be lack of underfloor vents, the boards are about level with the paving outside.
It seems to be like this:
View media item 48897
I'm a plumber not a builder.
How can they get ventilation to the underfloor space, eg where the red arrow goes??
The paved area has drainage, so I don't think water's getting through the wall.
The "kitchen" the extension is built off is much larger, ~ 4m x 10m, and that does have original masonry grilles at the level where I've shown "render band". I assume there's some sort of Z shaped way through from those.
So it's this "sticking out" bit of the kitchen which has the problem.
Peering down though gaps between the boards under the K cupboards I can't see signs of damp.
