Penetrating damp problems ... HELP!

[gouldie445]

Hi All. Please help with some advice. We have a Victorian semi which is now driving us mad. The main issues are around damp which appears to be penetrating our bedroom wall. I have only recently redocorated the bedroom which was showing small signs of damp but these are now alarmingly obvious with new paint. I have photos which illustrate how damp the brickwork is after rain on the exterior. The brickwork only appears damp in cetain areas and this is centered around the dormer window. The bricks are sodden at times. We are getting extremely frustrated as we have put money into small roof repairs ( flashing etc ) and nobody can tell us if it is roof or brick related. There is no felt beneath the roof tiles and the roof is itself old. The wall is possibly in need of pointing and has lime mortar. The wall was also treated with cavity filling 18 months ago. Someone please advise me if this could be rain water running from the roof/ dormer valleysp enetrating pointing work and down the brickwork or rainwater leaking through the roof tiles and somehow entering the cavity. As you can see the interior shots show a number of interior patches. These appears much more pronounced in freezing weather. Any help and advice will be gratefully recieved.

 

[trowlerman]

as i cant get the picture up my guess would be that its coming through the roof , you say you have a cavity in the brickwork so i this should prevent rain ,damp passing form external to internal

 

[joe-90]

No piccie visible. Check the guttering.

 

[gouldie445]

Cheers all. I really appreciate any help with this. I have now enclosed photos on my album. Guttering is all good. I am concerned about rainwater flow off roof and onto wall but....

 

[joe-90]

That's a serious amount of wetness. You'll have to get a ladder and get up and have a look at the flashings/soakers etc. It shouldn't be hard to find a problem that size.

Can you get into that part of the loft?

 

[^woody^]

Going by the staining alone, there seems to be problems with the parapet copings, the dormer roof, dormer side flashings, and the eaves soffit behind the gutter

There should not be that amount of water running down that wall

 

[trowlerman]

that wants doing sooner rather than later , looks like the copeings and flashing on the sides have failed

 

[gouldie445]

Again many thanks to all who have offered advice on this. I have been up with a ladder a few times but am struggling to locate causese. I reckon i am going to have to replace the coping stones at top of dormer, strip all the surrounding tiles and replace with felt and lead flashing. Probably repoint brickwork. Bloody dormer window is the root of all evil!