When I used to manage properties there was a particular family of "three" who was calling me every couple of weeks for mould problems.
The flat had never suffered from mould before they moved in.
After a few months of trying to educate them and getting as a response "you don't know what you're talking about" I started looking more into their lifestyle.
The family of three somehow had 2 king size beds, one double sofa bed, a foldable bed and 2 cots (one for their child).
I questioned how many people were living there and they insisted it was only 3 of them.
I asked why the so many beds and apparently they liked moving beds...
I started showing up uninvited and found people in pyjamas, taking showers and washing clothes, apparently all family visiting for the day.
Don't know you but when I visit family for a day I don't bring my pyjama, don't take showers and don't wash clothes.
Anyhow, the landlord was a saint and had the roof redone at his expense despite being a leaseholder (the superior landlord loved him for that).
He also had the loft re-insulated and new extractors installed (bloody powerful industrial ones)
I installed fancy vents with humidity sensors in them in the bedrooms.
Redecorated the lot with moisture resistant paint, it cost a fortune.
More mould after a month or so.
Incidentally the same family of 3... went through 3 washing machines, 6 taps 2 thermostatic shower bars and, wait for it...7 hot water pumps!
Don't know what they were doing with them, but when the plumber fitted one in a locked cabinet, they broke the lock.
Eventually he got rid of them and the mould problem "self resolved".
I forgot to mention that I found evidence of seller tape around the window opening, possibly trying to seal them (brand new double glazed).
The flat had never suffered from mould before they moved in.
After a few months of trying to educate them and getting as a response "you don't know what you're talking about" I started looking more into their lifestyle.
The family of three somehow had 2 king size beds, one double sofa bed, a foldable bed and 2 cots (one for their child).
I questioned how many people were living there and they insisted it was only 3 of them.
I asked why the so many beds and apparently they liked moving beds...
I started showing up uninvited and found people in pyjamas, taking showers and washing clothes, apparently all family visiting for the day.
Don't know you but when I visit family for a day I don't bring my pyjama, don't take showers and don't wash clothes.
Anyhow, the landlord was a saint and had the roof redone at his expense despite being a leaseholder (the superior landlord loved him for that).
He also had the loft re-insulated and new extractors installed (bloody powerful industrial ones)
I installed fancy vents with humidity sensors in them in the bedrooms.
Redecorated the lot with moisture resistant paint, it cost a fortune.
More mould after a month or so.
Incidentally the same family of 3... went through 3 washing machines, 6 taps 2 thermostatic shower bars and, wait for it...7 hot water pumps!
Don't know what they were doing with them, but when the plumber fitted one in a locked cabinet, they broke the lock.
Eventually he got rid of them and the mould problem "self resolved".
I forgot to mention that I found evidence of seller tape around the window opening, possibly trying to seal them (brand new double glazed).