Blocking airbricks

[JBR]

I have several airbricks around our house which have been like this for many years without any problems. However, it occurs to me that in some cases the lower part of the airbricks sit beneath the level of the pathway.
Would it be advisable for me to block up the lowest row of holes to prevent rainwater entering, but leave the higher ones open?
If so, what material would you advise I use?
Many thanks.

Apologies for delay. I have attempted to attach images, but without success. The only way I could do this was to scan the photos (in Google Photos) using PicPick and save them as jpegs. Hopefully these are now visible!

 

[Jake2021]

I’m in the middle of sorting my airbricks for my porch, my first thought when reading this would be if it’s a concrete path count a 4 inch strip off the path and maybe put a aco grill long it .
I would of thought your path has risen and not your house sunk lol
Jake

 

[JBR]

I’m in the middle of sorting my airbricks for my porch, my first thought when reading this would be if it’s a concrete path count a 4 inch strip off the path and maybe put a aco grill long it .
I would of thought your path has risen and not your house sunk lol
Jake

Thanks. Actually, although we have had new flagstones put down, the level is the same as the old ones and the distance from the edges to the wall is the same too.
As I said, despite the same problem existing for at least the 20 years we have been here, there are no signs of any damp problems. I assume that any rainwater that has leaked in in the past has either remained on the floor of the crawl space and perhaps soaked into the ground. Perhaps I should just forget about it then.
I realise that airbricks are there primarily to provide ventilation beneath the floor, so perhaps it doesn't matter if water leaks in.

 

[Jake2021]

my air brick is retry low too, because the flag stones (new ) are the same level as old doesn’t mean it’s right lol l. How far below dc are they? They should be at least 15cm below. If it is suing on your mind you could always cut a rectangle out of
Your flag stones and fit a
Concrete boarder around the air bricksililar to what you would have around a drain.

 

[johnny2007]

It depends how much water gets in there.
If eaves protruding a fair bit and the paving slopes correctly, you'll hardly get any water in there, so it's fine.
Many factors to consider.

 

[Mr Chibs]

JBR, have you got suspended wooden floors or concrete?

If concrete you could block up the vents.

 

[Jake2021]

Mr.b think he said wooden in a above post

 

[JBR]

my air brick is retry low too, because the flag stones (new ) are the same level as old doesn’t mean it’s right lol l. How far below dc are they? They should be at least 15cm below.

Thanks. I believe they are about 6" below the DPC.

 

[JBR]

It depends how much water gets in there.
If eaves protruding a fair bit and the paving slopes correctly, you'll hardly get any water in there, so it's fine.

Thanks. The eaves and gutters protrude well away from the wall. After it rains, I'll have a look at the paving stones and see how far the surface water extends.

 

[JBR]

JBR, have you got suspended wooden floors or concrete?

Thanks. Yes, as Jake says, they are wooden floors with a crawl space beneath. I know because I've been down there in the past and, out of interest, I don't remember the ground being particularly wet at the time - I came out grubby but dry!

 

[JBR]

Thank you all for your advice. All in all, and because I can see no signs of damp after all these years, I'm happy to leave things as they are.

 

[Jake2021]

No problem , chances are as mentioned above the water falls away from them or soaks up before reaching them. If it's not broken don't fix it however there's nothing wrong with 're visiting it whenever o or if ever you need.to. People!e on here will always be happy to help if they can and don't feel shy of asking questions best wishes jake