Attic wall full of damp and water help

[zyllybus]

So for the last year the damp in our attic (just on one wall) has been getting worse and worse until just before christmas the water started coming through the wall.

Our house is a middle terrace house and next door neighbours chimney is basically on the other side of the plaster (see pictures) (basically the wall you can see is where their chimney is)

They have had a builder re point their chimney and done the flashing but the water is still coming in.

If you can see by the pictures the brick work is really really bad and the mortar is "squishy" and is all uneven - we have had a builder and a plasterer look at it and both said two different things - one wont do anything because the how uneven the wall is and one said they will put a membrane on it with tanking slurry

We had easydamp look at it and quoted us a stupid amount of money to fix it (£13,500)

I honestly have no idea what to do with the wall? do all the bricks need to come out? can it be hardwall plastered? does it actually need a damp proofing course doing?

Please can someone help?

 

[^woody^]

Get it properly diagnosed by an independent building surveyor - someone who does not have a product to sell you to cure the problems he may find. Not a builder or plasterer or a damp treatment salesman. A building surveyor.

Then sort the problem out before dealing with the repair of the wall.

 

[zyllybus]

Get it properly diagnosed by an independent building surveyor - someone who does not have a product to sell you to cure the problems he may find. Not a builder or plasterer or a damp treatment salesman. A building surveyor.

Then sort the problem out before dealing with the repair of the wall.

Ok I will 100% look in to doing that

Thank you for the help

 

[catlad]

Dry line the wall with a tanking kit anyway as chimneys are prone to damp.

 

[Koolpc]

Dry line the wall with a tanking kit anyway as chimneys are prone to damp.

Nope.....

Cure the issue and then let the wall breath.

 

[catlad]

Depends what he wants to look at! What do you think tanking membranes where invented for?

 

[Koolpc]

Depends what he wants to look at! What do you think tanking membranes where invented for?

Hiding the real issues!

 

[^woody^]

Tanking is really for below ground where no other option is possible. All tanking will fail, that's a fact. If you tank an attic wall, the damp will just move downwards - descending damp is a thing.

Above ground, it would be better to deal with the weatherproofing externally.

 

[catlad]

I never said ignore the issues! The op. has already see one option fail! I'm telling him what will work if installed correctly.