I've got an issue with damp getting into a newly plastered wall. Previously the wall was blown at the bottom and there was a lot of pink plaster used. Now this rubble stone wall has been padded out with NHL 3.5 and then plastered with 30mm of Secil EcoCork and 6mm of fine hemp. Water is obviously getting into the wall from the outside where the rock is higher. The wall is still sound at the moment but obviously wet. You can see where the sawdust (from cutting the floorboards) is sticking to the wet wall.
I'm keen to explore external options for how to solve this. The property is located in North Wales and I've tried to contact the local Soverign chemicals rep for technical support but without any joy. They have a product called Weather Chek which the local builders' merchant can supply. Is this suitable? Other ideas I have are to put a channel outside and a bell bead above said channel near the foot of the wall to divert water away. Is this a sensible way to tackle the issue?
This is the outside aspect of that same wall. The wet patch of the interior wall runs roughly from the slate slab leaning against the wall down to the gas box. The sharp sand pile is no longer against the wall.
I'm keen to explore external options for how to solve this. The property is located in North Wales and I've tried to contact the local Soverign chemicals rep for technical support but without any joy. They have a product called Weather Chek which the local builders' merchant can supply. Is this suitable? Other ideas I have are to put a channel outside and a bell bead above said channel near the foot of the wall to divert water away. Is this a sensible way to tackle the issue?
This is the outside aspect of that same wall. The wet patch of the interior wall runs roughly from the slate slab leaning against the wall down to the gas box. The sharp sand pile is no longer against the wall.