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Damp Proofing

Partially underground damp wall

Anonymous user 15/03/2024 - 2.54 PM

I have a 2m tall kitchen wall, where the bottom 0.5m is below ground level. The wall is suffering from damp and it has been proposed that I apply an Oldroyd cavity drainage membrane and liquid tanking. It is quite easy for me to lower the part of the garden directly in contact with the wall, so this will be my first job. Once the external ground has been lowered is there any need for me to apply the above treatments, or could I go with horizontal dpc injections? My plan is to tile the wall, so open to other methods that are best suited? Thanks

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4 Answers

Frank Thomas Damp Proofing

Rating: 4.8 out of 5

Chippenham

Lowering the ground outside of the property it the 'fix' however there will be salts built up on the wall that need to be neutralised. You can find salt neutraliser online, Remember PPE!. Once the ground outside has been lowered a new injected DPC can be installed (depending on type of construction) I would recommend battening the wall and using a breathable membrane system with a wall covering of either plasterboard or tile board if you intend to tile.

Answered23 February 2020

Anonymous user

Dear Customer, i agree with Frank. The construction of the wall is the key, as this will make all the difference to the way you treat it. Photos or even a wall description would help you get the answer you would need to proceed with any certainty and confidence. There are a few different types of build you see, and knowing which you have will allow us to give you a more concise answer. kind Regards Darren Thomson

Answered29 February 2020

A G Builders

Rating: 5 out of 5

Gloucester

Dig away . Perfect! You’re already under ground level so drilling and injection is a waste of time. Mechanical wall fixing internally waste of time. Tank cement and sbr slurry 5 coats both side of wall (inside and out) 2 coats of waterproof render inside. Renderband 1 m high outside Re skim internally then over to you .

Answered29 February 2020

Viking Property Solutions inc:Dampfix

Rating: 4.9 out of 5

Manchester

Yes, clearing the ground from the external wall is the first step however as Frank's answer states this will still leave the salts that cause rising damp in the brick, put in a new DPC, but rather than membrane, a company called safeguard europe, produce an express plastering system, it is a salt inhibiting cream that is applied directly to the brick, you then reboard using the waterproof adhesive and then skim as normal, we use this system a lot. Just Google, Safeguard europe and check it out.

Answered12 March 2020