DPC breached

[Pappa]

Hi guys 

 

Please see internal/external photos attached.

This was done before I bought the house.

I'm pretty sure they've ruined the DPC and hence water travelling through the cavity insulation (probably cellulose) to internal wall.

 

What are my options to repair the DPC please?

 

Thanks

 

P

[ProDave]

Where is the internal picture in relation the the outside?  the rendered wall or the plain brick wall?

[Redbeard]

 

1 hour ago, Pappa said:

water travelling through the cavity insulation (probably cellulose)

 

I'll put on a pretty good bet that it isn't cellulose. AFAIK cellulose is not normally (ever?) used in masonry cavities in UK. If it's white and fluffy it is almost certainly (CWI-grade) Rockwool. Is it only the v small patch we can see? How about chopping out and inspecting (and repairing if necessary) the DPC?

 

Approx age of house? Was it originally done with CWI or was this a retrofit? (I think I have answered my own Q as the 2nd course below the cill course seems to show 2 (CWI) drill-marks at the centres one would expect.)

[Pappa]

7 hours ago, ProDave said:

Where is the internal picture in relation the the outside?  the rendered wall or the plain brick wall?

Sorry, plain brick wall.

6 hours ago, Redbeard said:

 

 

I'll put on a pretty good bet that it isn't cellulose. AFAIK cellulose is not normally (ever?) used in masonry cavities in UK. If it's white and fluffy it is almost certainly (CWI-grade) Rockwool. Is it only the v small patch we can see? How about chopping out and inspecting (and repairing if necessary) the DPC?

 

Approx age of house? Was it originally done with CWI or was this a retrofit? (I think I have answered my own Q as the 2nd course below the cill course seems to show 2 (CWI) drill-marks at the centres one would expect.)

I just guessed that it was cellulose, all I know is that it's white and fluffy.

Thanks for confirming.

 

The house is Victorian so 100 or more years, however this brickwork is definitely not Victorian.

Not sure when it was given a facelift or why.

 

I was thinking the chemical dpc would be easiest?

Will that suffice as a patch up repair job or will I have to replace as like for like?

 

Thanks

P

[ProDave]

That wall does not look very thick for a cavity wall.

 

I would start by taking off that socket in the corner (turn the power off) and if you can removing it's back box to see what the wall make up is.  Is that plastered on brick inside or plasterboard?

 

Are you sure it's not just condensation?

 

Someone has done some investigating before, not the half brick bottom right just right of the air brick that has been removed before.

[JohnMo]

Have made sure it's just not a very slight leak from the radiator also, before assuming the worst.

 

What is the inside floor level when compared to the patio slabs?

[G and J]

I’ve seen stuff that looks like that that is purely condensation where tenants have failed to ventilate.

[Spinny]

The carpet looks damp ? If so you could pull the corner of the carpet up to look underneath.

Difficult to see from your photo - does the rad pipe go into the wall ?

 

Radiator is presumably under the window then.

Is the rendered wall just a garden wall / boundary wall outside ?

Edited June 12 by Spinny

[Andehh]

What's up with the bottom corner of that window? That looks suspicious to me? 

 

But mostly that rendered wall, totally breaches your DPC, and if you have driving rain on that corner you are guaranteed problems. What is it? Who built it? Why is it rendered to the floor?

 

Def remove socket (power off) and have a poke around with a damp meter....tskr a large photo of the wall and "plot"  readings to see if that gives you a central location/worse zone to focus on.