How to stop water ingress under house through external brick wall?

[approachmhn]

 The external wall is single brick, I am getting water coming through the brickwork to crawl space under house when it rains .

I can get to both positive and negative sides of the water transfer.

Is there a suitable product to seal the wall on the outside or inside.

the upper part of external wall is rendered. So I think water ingress is through bottom where wall is not rendered and is covered by soil.

appreciate your suggestions

thanks.

 

 

[MitchellMc]

8mm gravel would be perfect, Mahon (@approachmhn). 

Mitchell

[approachmhn]

Hi, Finally done with agi drain.
Thank you @MitchellMc , @Dave-1 , @EricL  and @Jason  for your help.

tested and works fine. now waiting for rain to see how effective it is as I just left it 2 metres away in a garden bed. 

 

  

[Dave-1]

 @approachmhn 

hahahahah Oh yeah, can see you running around in the rain taking pics and hopping it works out! Been there and must admit its exciting to see and if it dosnt work as expected you know the answers as you are the one who did the work! I had that feeling with my watercourse and yeah need to modify it a bit but the principal works! Congratulations on getting it done!

Dave

[approachmhn]

Thank you @Dave-1 . 

i already found one now 😊

i see some water is getting through this crack seen on rendered wall when I hosed down water from the top of verandah.

Planning to seal it with

Sika-11FC.

is there any waterproof paint which is breathable?

 

[approachmhn]

Can someone please suggest on a good solution to stop water getting through crack as mentioned in above post?

it rained a lot on Monday, I see no water pooling under house after putting ag drain except some leakage through rendered crack.

TIA

[MitchellMc]

The crack is very fine, @approachmhn, but you could attempt to fill it with the Sika product. It might be best to apply it along the crack and then smooth it out with your finger, creating a bandaid over the top of it.

Mitchell

[approachmhn]

Thanks @MitchellMc .

Will do as suggested.

All the rain water will flow down the wall. So, once Sika dries, is it ok to apply 

Crommelin Natural Finish Penetrating Sealer And Water Repellent. 
or is it ok?

[Dave-1]

Good Evening @approachmhn 

I am a little confused. There is no water under the house which is what you want

You are concerend about that fine crack allowing water under your house?

Id hold off on buying thats sealer until we know what your concern is.

Dave

[MitchellMc]

Do you want to apply that product on the painted outside of the wall or the non-painted inside under the house @approachmhn? That product needs to be painted on a porous surface like brick or concrete, not a painted surface.

Mitchell

[approachmhn]

@MitchellMc it’s not painted. The concrete render itself was white.