Damp or mould

dahac

If I get the injection dpc done on the outside would that stop the mould growth within that corner. Is there anything I can do for the inner wall

muckybutt

Just wondering...is the inner wall a plasterboard - lined wall ? wondering if previous occupants have dry lined the wall to make the rooms warmer.

I would say get a professional damp proofing company in and get quotes.

dahac

Walls have the original plaster on. Just can't get my head around it

mikey72

Can you post a picture of the wall, and floor?

Have you taken the floorboards up to look at the joist below?

Do you mean a joist has been replaced, or the floorboard.

dahac

I've not got the floor up at the mo but I have had it up so I know the last joist has been replaced which is the last one before the cavity. The next joist down from this one has gone soft at the joining wall side. We have no damp or mould growth on or above the joining wall only on the outside wall part. Can't put a picture on sorry

dahac

http://www.flickr.com/photos/85788600@N07/7858986576/

Not sure if they will work but I've put one which shows dark patches on wallpaper and some on the back of paper on out side wall

muckybutt

Rising damp !

You need a builder.

dahac

What will they do just so I have some idea, injection dpc

justjohn

you need someone too tell you whats wrong and why.(assuming you cannot find cause)

Then decide if you diy it.

Materials can be less than 100 pound. Depending on the problem.

Applying cream dpc is easy if you have the drills and kit. Splicing the joist or replacing is also easy. However you need to find the cause before you can find the remedy.

Rentokil will give a free quote including diagrams. Then you can decide to go elsewere or diyit.

Nice high profit on this job for the tradesman lol

muckybutt

Well the offending damp plaster on the wall will have to come off, the affected bit of flooring taken up and joist / 's replaced, then its a matter of finding out what is causing the damp be it something bridging the dpc or if the dpc has failed.

I would imagine once the problem has been found they will reinject the area affected following repairs, then its a case of re rendering and plastering the walls etc.

A few weeks work if done correctly.