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How to reduce moisture and rising damp along a wall?

nigelfds
Getting Established

How to reduce moisture and rising damp along a wall?

Hi 

There has been some moisture entering the house along one side of the wall. Multiple rooms have moisture and mould.

We are in the process of fixing the issue.

 

Screenshot 2025-12-04 144219.png

 

Once the issue is fixed, I was wondering if I can put some sort of water proof paint or membrane on the concrete or on the timber ?

Something like this >> 

https://www.bunnings.com.au/dunlop-4l-damp-proof-moisture-barrier_p6820176

https://www.bunnings.com.au/gripset-betta-1l-waterproofing-membrane-bitumen-rubber_p0960165

https://www.bunnings.com.au/gripset-betta-1l-damp-stop-waterproofing-primer_p0960182

 

Either on the whole floor or part of the floor near the outside wall? And maybe on the timber along that wall ?

 

Thanks.

EricL
Bunnings Team Member
Bunnings Team Member

Re: Reduce moisture and rising damp along a wall

Hello @nigelfds  

 

Among the products you've mentioned it is the Dunlop 4L Damp-Proof Moisture Barrier that fights negative hydrostatic pressure. However, if the leak is not addressed, water and moisture in the wall will simply keep travelling along the weakest point of your mortar or brick wall and emerge on the surface again. I propose using Gripset Betta 1L Waterproofing Membrane Bitumen Rubber to seal the outside wall and Dunlop Damp Proof inside the house. 

 

If you need further assistance, please let us know.

 

Eric

 

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