Vijay

Air bricks - min height off ground?

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Vijay    58

I need to install air bricks into the internal rising and sleeper walls and wondered if there is any reason I couldn't put them in the bottom course, so directly on top of the foundation concrete?

 

Cheers

 

Vijay

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nod    41
13 minutes ago, Vijay said:

I need to install air bricks into the internal rising and sleeper walls and wondered if there is any reason I couldn't put them in the bottom course, so directly on top of the foundation concrete?

 

Cheers

 

Vijay

I just left a brick out and cut a concrete lintel down to 600 and put it over the missing brick

main reason was to allow underfloor ventilation But also so that any water would not be traped and would make its way to a drain under the centre of the B&B floor

BC signed it off without ant issues 

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nod    41
Just now, nod said:

I just left a brick out and cut a concrete lintel down to 600 and put it over the missing brick

main reason was to allow underfloor ventilation But also so that any water would not be traped and would make its way to a drain under the centre of the B&B floor

BC signed it off without ant issues 

 

IMG_2397.JPG

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Vijay    58

Cheers Nod. I've got about 20 to do so would be much easier to do it with air bricks.

 

Or is there any reason I couldn't use an air brick vertically??

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nod    41
22 minutes ago, Vijay said:

Cheers Nod. I've got about 20 to do so would be much easier to do it with air bricks.

 

Or is there any reason I couldn't use an air brick vertically??

You will still need to put a lintel in each one

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nod    41
15 minutes ago, Vijay said:

even if it's on a bottom course with a block over it???

 

16 minutes ago, Vijay said:

even if it's on a bottom course with a block over it???

If you have a block over it you'll be fine

Mine  was only one block high 

so I had to lay 2 course of brick

then a lintel 

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Vijay    58

Can I use plastic air vents under the floor or does it have to be terracotta? I can only imagine it would be an issue for rats but they can't exactly go anywhere

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nod    41
15 minutes ago, Vijay said:

Can I use plastic air vents under the floor or does it have to be terracotta? I can only imagine it would be an issue for rats but they can't exactly go anywhere

As you say Vijay 

They can't go anywhere 

I would have preferred to use Clay

but plastic vents came with the periscope vents

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nod    41
8 hours ago, Oz07 said:

What made you concrete under b&b?

The short answer is

The engineer 

I was going to stone it

He advised me that in the unlikely event of a flood

i would be relying on the water seeping away under the house Leaving sewage under the house

So we laid a central drain with six metres of concrete falling towards it

it cost me an extra £350 plus half a days labour  for two

not a fortune in the grand scheme of things

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