Is this a damp problem?

villafan10 · Post by **villafan10** » Sat Aug 08, 2020 8:02 pm

Hi guys n gals. Absolutely DIY novice here. More destroy it yourself than do it yourself. You get the idea. I have very little knowledge on most aspects of building etc.

I had a conservatory built around 8 years ago and havent really had a problem with it but all of a sudden today we noticed these marks on the wall. To me it looks like there has been some sort of water ingress in the wall but I've no idea why this would have started all of a sudden given that the weather is glorious and the conservatory has been in place for many years. The dirty mark in the top right of the picture is where we have taken a picture off the wall and found there was mould behind it. There was nothing covering the other two marks by the coat rack. I dont know how long theyve been there but we have only just noticed this. Any advice would be appreciated.

dewaltdisney · Post by **dewaltdisney** » Sat Aug 08, 2020 8:17 pm

I suspect that there is a leak in the flashing which is the metallic looking strip between the wall and the conservatory roof joint. It looks like water has found its way down, maybe under the plaster, and dried leaving a water mark stain. Have a close look at the flashing for anything obvious but I think it a small opening as there has clearly not been torrents of water that you would have notied I am sure.

DWD

fin · Post by **fin** » Sun Aug 09, 2020 11:25 am

as above. often ya see conservatories with flashband or similar rather than a propper flashing. could be that it has came loose

ayjay · Post by **ayjay** » Sun Aug 09, 2020 11:37 am

fin wrote: ↑Sun Aug 09, 2020 11:25 am could be that it has came loose

It's probably suffered in the sun and heat recently.

fin · Post by **fin** » Sun Aug 09, 2020 3:08 pm

i like a bit of lead work. normally find that those little clips work very well alongside lead mate. think they called hall clips??

Deleted-user-3 · Post by **Deleted-user-3** » Tue Aug 11, 2020 6:46 pm

could also be lack of cavity trays.... not that ive seen a job that used them lately but technically theyre supposed to be installed when an outside wall becomes an inside wall lower down...
id go with leaky flashing though first... flashband just isnt good enough for this job... maybe on a lean to shed but not a conny imo.. always lead for me... or lead replacement tucked in and pointed..