Damp walls when raining

[Jdh1989]

Hello everyone

My partner and I moved in to an end of terrace house back in May.

With the summer gone and the rain here we have noticed large patches of damp on the two rooms upstairs and in the living room all of which are on the external wall.

We have had a roofer in to check and he did repair a patch of felt however it is still getting worse.

Just wondering what the possible causes could be

Photos should be attached

the pointing in the brickwork maybe?

also make sure your guttering is clear of leaf debris

Check your gutters when it's raining.

The outside is rendered with pebbledash but will get it looked at as well as the guttering. I should also mention a gas flue was removed before we bought it.. not sure if that would contribute?

I would say - having had the same problem- it’s either guttering being blocked and causing the water to run down the walls or / and not enough ventilation (you may need air vents in the roof and breatheable felt put in). But guttering is the first thing to check.

Hi

Firstly sorry for the late reply it’s been a hectic week.

Yeah guttering is all fine and no holes in the roof.
Had some builders in today who believe the issue is penetrating damp.
The walls have been plastered over and in their opinion there is still lime in the chimney stack that could cause this penetrating damp to come through?
Their solution is to remove the plaster fit a membrane over the walls and then re plaster.
Not had a quote yet but I’m sure it’s gonna hurt.
Would this sound like a good solution?
Surely it’s better to try and stop the damp problem all together than just stop the water coming through!

Personally I would paint with brick and mortar waterproofer it's clear then repaint when dry as they won't actually be removing the lime just sealing it in and the waterproofer Will act like a membrane and cost about £15

So we will still have to remove the plaster etc? Would a vent help at all?

I wouldn't bother just seal the damp walls if it's not loose it's worth a try before you spend loads