Air vent and internal damp

This Forum is for all questions relating to Rising damp, Penetrating Damp, Basement Drainage, Cracked Masonry and Wall tie replacement.

Moderator: Moderators

Post Reply
cudworth78
Newly registered Member
Posts: 2
Joined: Mon Oct 30, 2023 6:54 pm
Has thanked: 0
Been thanked: 0

Air vent and internal damp

Post by cudworth78 »

Hi,
As you can see from pics, I have an air vent that is pretty much level with driveway. Driveway was here when we bought the house and I assume they built up to this level. Other pics show damp areas on either side of a wall closest to the air vent. Any thoughts please? Is rain water getting in the vent and causing this damp or is the cold air passing through the vent and causing moisture to condense at these points? What do you suggest? Thanks
Attachments
IMG_20231101_130321956.jpg
IMG_20231101_130321956.jpg (139.29 KiB) Viewed 1345 times
IMG_20231101_130336279-1.jpg
IMG_20231101_130336279-1.jpg (33.01 KiB) Viewed 1345 times
IMG_20231101_130425193-1.jpg
IMG_20231101_130425193-1.jpg (43.29 KiB) Viewed 1345 times
Top
dewaltdisney
Senior Member
Posts: 17553
Joined: Fri Jan 20, 2006 5:51 pm
Location: Essex
Has thanked: 831 times
Been thanked: 3627 times

Air vent and internal damp

Post by dewaltdisney »

Is that the damp course just above the vent? It would suggest that the damp inside is caused by a breach in the damp course as I doubt water ingress through the vent would have caused it. However, I would consider building a protective gully around the vent. Easy enough with bricks or some moulding shuttering and well tamped concrete mix. See https://c8.alamy.com/comp/D2DYTC/leaves ... D2DYTC.jpg. You might want to call a damp firm in to give you an idea and an estimate but be careful, many are charlatans.

DWD
Top
Post Reply

Return to “Damp Proofing and Remedial problems”