Damp bricks
- Thread starter ElizaJ
- Start date
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The wet bricks are subject to rising damp because they are below the DPC.
Your DPC is just above the air brick.
In good practice the air brick should be above the DPC.
A pic showing more of the wall elevation would help?
Do you have any damp issues on the inside of that wall?
All air bricks should be clear to provide ventilation - the wasps are irrelevant.
Your DPC is just above the air brick.
In good practice the air brick should be above the DPC.
A pic showing more of the wall elevation would help?
Do you have any damp issues on the inside of that wall?
All air bricks should be clear to provide ventilation - the wasps are irrelevant.
I have taken a picture of the wall, I'm not sure if it's what you meant, sorry! It is below the level of the inside floorboards so no damp in the rooms. Should I ask a builder to put airbricks a bit higher? I think the house was built in the 70s? Why do you think it has started doing this after all these years.
PS thank you so much for replying
PS thank you so much for replying
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Thanks for the pic.
I needed a reference point for your FFL and the position of the joists.
google pics esp section views of air bricks and DPC's in a cavity wall to get a rough idea.
You have a cavity wall which, unless the cavity is blocked and bridged with debris, will protect your inside flooring and joists.
But a clean cavity will only protect the interior from damp if the inner wall has its DPC in the correct position - which, given your "no damp in the rooms", should be fine.
Essentially, it appears that you are good to go & forget about DPC's & damp.
No need to move the air bricks
I needed a reference point for your FFL and the position of the joists.
google pics esp section views of air bricks and DPC's in a cavity wall to get a rough idea.
You have a cavity wall which, unless the cavity is blocked and bridged with debris, will protect your inside flooring and joists.
But a clean cavity will only protect the interior from damp if the inner wall has its DPC in the correct position - which, given your "no damp in the rooms", should be fine.
Essentially, it appears that you are good to go & forget about DPC's & damp.
No need to move the air bricks
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Thank you again, so should I stop worrying the house will fall down?! Do you think a wasp nest could have blocked the cavity because something must have changed in the last year to cause the damp? Should I find someone to check under the floorboards or look behind the bricks? I'm sorry I am so clueless about this sort of thing, I have no idea how a house is built but will Google as you suggested.
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