upvc and fresh air/mould

[terence7556]

replaced the upvc windows and doors in my bungalow and its made a difference though not all good.
the previous draughts i used to feel have gone but there is a problem with mould on the top of my lounge walls since the work was carried out.
is this due to a lack of air changes per hour which the new windows have resisted even with trickle vents open all the time.am i looking at possibly fitting an expelair to deal with the problem?

[what..the?]

It will be due to steam in the house from, bathrooms, kitchen- cooking/kettle you need to opening the windows in these rooms to let the steam out, in the bathroom get an extractor fan for privacy reasons, or if you have one clean it and remove blockages. If the problem continues, you could get a dehumidifier. Mould like this is worst of the winter so you should only have to run a dehumidifier on and off for a couple of months. Ideally open the windows as much as possible and open the curtains as well is very inportant for the light to get in the room believe it or not. During and after a shower close the bathroom door and open the window in there, or leave the extractor running. That will stop the steam getting into the other rooms and failing to escape.

[what..the?]

Also use a product called 'mould and mildew remover' it is a green spray bottle and is made by dettol. You can buy it on the shops. spray and wipe off. But be warned it is strong stuff you have to wear gloves, googles if you are spraying upwards. A mask if you are spraying along time in a porlly ventillated place, and old clothes because the bleach in the product takes the colour out of your clothes. If you are doing your lounge ceiling you might have to cover things like carpet/curtains/furiture. But this product stops the mould growing and prevents it coming back too quicky.

[Whoever]

It sounds as if previous draughts, which have now been eliminated by the double glazing, were in fact keeping your lounge well ventilated and stopping the mould forming. If your trickle vents are kept permanently open, the only alternative to installing a dehumidifier, is to regularly open the windows for a short period, especially if steam and cooking is in progress in the nearby kitchen. Also, do keep your kitchen door closed so that steam can't move through so easily into your lounge. Keeping a regular draught of air moving through your lounge is probably the best way of keeping the mould at bay. Running a small air fan heater for short periods might also help dry out any moisture generated by the steam.