Mould on rafters?

[Thedreamer]

A few of our rafters have a white mould growing on. Has anybody else experienced this with a self build that is on going during the winter.

 

The rafters are TR32 treated timber and the whole place is watertight and is open so don’t think ventilation is the reason.

 

It also seems to be more prevalent on areas where sun light is coming through which would suggest a slightly warmer temperature for part of the day that might be stimulating growth.

 

Could this be connected to extra moisture from the materials drying out?

 

It’s too dark to take a photo just now.

[Russell griffiths]

Have you forgotten where you live ?? 

I would think it will all be ok when you get the doors open in August 

if your worried give them a wash down with a bleach solution and let the wind blow through. 

[makie]

Use some white diluted vinegar and spray it onto the area and it will sort it out

[Thedreamer]

Thanks very much @Russell griffiths & @makie