Damp Problem

[AMtek]

This isn't really a tiling issue but someone may be able to help......

I have just started a job in an old single storey extension which was converted into a bathroom some time ago, on removing the tiles most of the pb came with it and was sodden (even in the dry areas) which was worrying to say the least. On further inspection the walls are single skin brick with no dpc and the water is pouring through the walls. there is no insulation so i was going to batten out the walls and insulate before putting a mix of cement board and pd on top. My question really is what measures should i take to remedy the damp before i reboard?

[whitebeam]

I would concider a liquid damp course this where the holes are drilled and a liguid injected into the holes to give a damp course..

Is the ground level higher outside of the wall which could be causing damp..it's the fact that you say it's pouring in...

Could also worth checking the cutters outside as well..

[Dave]

If there is no cavity then damp is going to be a problem.. A lot of out houses/coal sheds/toilets were single brick construction.. then peeps convert them but don't remedy the issue of damp..

[AMtek]

This is exactly what it is Dave. it is a single story extension which was originally a laundry room on one side and a shed on the other side divided by a wall. The wall was removed to create a bathroom at some stage but no sort of damp proofing was put in and now there is a damp problem.

Whitebeam, the ground level is the same as the floor inside the extension

[whitebeam]

Has there been a damp proofing put on the floor as well I wonder..

[AMtek]

As far as i can tell there doesn't seem to be any damp on the floor at all, just round the edges where the walls meet the floor. No job is ever straight forward is it!

[whitebeam]

I'd be getting in touch with a damp proofing company/one man band for a survey just to be sure it gets sorted before you go any further..

[AMtek]

Thats what i was thinking. Can see her refusing to have it done and me having to walk away!

[whitebeam]

If you do it and it goes bad it's your number there'll be calling..