Damp?

[JohnnyUK]

Hi All

Spotted this today (well to be honest about 5 months ago!).

I've been waiting for some warmer weather to figure out what's going on.

I'm ASSUMING that water is making its way inside between the door frame and the wall?

If so, do I need to re-seal the frame with something?

Thanks in advance!

ETA, the "black" on the external picture of the door frame is actually a shadow - not a sealant.

[wolfracesonic]

It looks like a separate trim piece has been fixed to the door frame and not been siliconed against the brickwork, that needs sorting as you say; use a low modulus silicone, with some masking tape on the trim for a nice clean line.
It also looks like the door opening has been formed after the fact with an angle grinder. If it’s a cavity wall and the cavity was built up without a vertical dpc, that may be causing the problem, not easily solved.
The silicone is definitely the first step though.

[037]

Yes reseal it and see how you go. The door frame has obviously been cut into the brickwork retrospectively so I suspect a vertical DPC hasn't been put in and moisture is bridging the cavity and into the plaster.

[JohnnyUK]

Thanks both, yes, it was windows converted into bifold doors....

Where should the vertical DPC be?

With the silicon, is it literally squeezed in to the gap between the plastic and the brick?

Sorry for the numpty questions - ask me an IT question!

Edited by JohnnyUK on Monday 20th April 19:55

[Winston Wolf]

wolfracesonic said:

It looks like a separate trim piece has been fixed to the door frame and not been siliconed against the brickwork, that needs sorting as you say; use a low modulus silicone, with some masking tape on the trim for a nice clean line.
It also looks like the door opening has been formed after the fact with an angle grinder. If it s a cavity wall and the cavity was built up without a vertical dpc, that may be causing the problem, not easily solved.
The silicone is definitely the first step though.

Neat practice to fit a trim to the frame to hide the mastic/silicone. If you remove that trim you should find the seal. Has the frame been foamed in correctly would be my starting point.

[Winston Wolf]

037 said:

Yes reseal it and see how you go. The door frame has obviously been cut into the brickwork retrospectively so I suspect a vertical DPC hasn't been put in and moisture is bridging the cavity and into the plaster.

Not seen a vertical dpc in many a long year - well not since the cavity closers were brick. You are aware cavity closers are now made of plastic?