can unpainted roof be causing friend allergies ?

A long while back there was some dampness in the roof that only affected the spare room...

It was all fixed and involved the roof of the room being replaced.. you can see the panels they have put up and its covered in what I describe as pinkish looking plaster they also needed to remove the wooden floorboards which weren't replaced at the time.

So as it was a spare room we never bothered doing it up yet as other rooms needed work and it could wait... however my friend is staying with us and bought himself a spare bed for the room... he didn't care about it not being decorated but since he has moved in, he has been up all night sneezing, itchy eyes, itchy skin and using his inhaler a lot.

He brought with him an air purifier which he needed for his previous flat.. he was surrounded by wooded areas and when it got damp caused him breathing problems so he is obviously very open to irritations.

I've had a look at the roof there is no further leaking or dampness but the roof looks pink where they have plastered over the new panels can something be still coming off this ?

He has had no luck with the purifier in fact when its on full it irritates him even more and when he opens the windows same thing... its as if any airflow in the room makes things worse.. so im thinking dust or debris blowing off the roof... or could it be the open floorboards that we haven't put flooring back over?



any ideas ill take a few pictures later

Could just be dust. I am sneezing at times, as is my son, and we think it is just the dust from the renovations I am doing. We both suffer from hayfever and dust allergies.

Would probably be sensible to paint the room and put a carpet it...

The room has been hovered and dusted plenty of times since the renovation which was nearly a year ago... He is fine when he is in any other room of the house its only this one room when he spends time in it.

The walls are papered its just the flooring which is old wooden floorboards that came with the house and the roof which is those panels with pink plaster over it.

He isn't just sneezing he has pink rashes over body from itching or the irritation and breathing problems can hear the wheeze... once we go out for a few hours he is fine can see him breathing better.

There is lot of air flow from gaps between boards so any underfloor dust will come up, remember that soft furnishings like curtains can also be a source of trouble. Pink plaster is not uncommon never heard of it causing problems, but never say never.

Is there any old dust in between the floor joists?

Or is there any residual mould?

Is he using a different pillow and duvet -feather can cause allergies as they encourage dust mites.