Any thoughts on these 4 vents

Calahonda52

House is cavity wall

House built built on solid rock,

concrete floor

vents were fitted to allegedly address damp in the walls

No evidence of damp yesterday

Wondering do the prelude pumping the cavity.

Thanks as always

ground level rises steeply to the right , its solid rock

sydthebeat

i dont see any impact they can have on the DEAP process.

if pumping the cavity surely they grills can be taken off and solid piping applied to maintain whatever ventilation its providing, assuming theres none there now.

as an aside, i also dont see how they can have any effect on rising damp?? :D

Calahonda52

Thanks, yep no impact on deap

I have no idea what they are supposed to be doing

sydthebeat

https://www.boards.ie/discussion/comment/120182923#Comment_120182923

definitely a concrete floor yes?

if its solid rock, i wonder if the floor is constructed in T beams and blocks and these are to vent a gap underneath?

Calahonda52

Yep solid floor.

There are no more around the perimeter.

The lady is widowed since the job was done so she has no idea.

Having said all that

some nasty looking cracks

Biker1

https://www.boards.ie/discussion/2058282232/any-thoughts-on-these-4-vents

I have seen these as remediation for radon. I would be a lot more concerned about those cracks.

Calahonda52

Biker, thanks as always, for your insights!

That did occur to me so I wonder did they tell her a few porkies

Radon Risk Map of Ireland

About 1 in 5 homes in this area is likely to have high radon levels

shoegirl

That's something I'd look for a professional opinion on. Unusual place for venting?

Calahonda52

https://www.boards.ie/discussion/comment/120188538#Comment_120188538

I would agree except its a BER so I can't stray off the reservation as one might with a normal survey to help the client.