Is it normal to have too much condensation in my loft?

[Ameer]

A few weeks ago I had a leak of rainwater from the roof to the loft. I got a roofer from my builder. The guy came and replaced all the filt (membrane) on one side of the roof as he said it was old and causing a leak.
I have noticed that the membrane he replaced is almost always wet with condescending water and it is causing the wooden structures in the loft to be wet most of the time. Comparing the side he did with the other side, the other side looks drier and has very minimum condensation. The wood on the other side looks drier.

My question is, is this condensation normal? Or shall I ask him to fix it? There is no leak as such, it is just condensation which seems to be too much. Not sure if this is normal or is there an issue with my redone roof. I have attached some photos to explain. The loft is insulated with at least 150 mm thick insulation.

I'm not sure what I can do to minimize this condensation. I have attached few photos to explain

Can anybody with experience advise me on whether or not to worry about this?

 

[JohnD]

CONDENSATION IN LOFT (ANSWERS)

This seems to be the time of year for condensation in lofts, so instead of replying to lots of queries I though I would write this "one-size-fits-all" post. Please also see //www.diynot.com/wiki/Building%3ACondensation-in-Houses Condensation in lofts occurs when the amount of water...

www.diynot.com

 

[Why Not Indeed]

Comparing the side he did with the other side, the other side looks drier and has very minimum condensation. The wood on the other side looks drier.

This could be explained by which way the two sides face. My east-north-east facing side always has more condensation than my west-south-west facing side.

 

[amfisted]

According to surveyors, there's a lot of condensation in lofts this year. I'm no expert and nobody has let me into the secret of why this is, but it could be that the recent, unusually cold spell of weather has contributed. Cold on the outside of the roof transferring to cold on the inside, creating ideal conditions for condensation where warm, moist air hits the underside of the roof lining. My own loft has been pretty wet over the last few weeks, a problem which has persisted despite my having drilled and fitted soffit vents outside and lap vents inside. So ventilation isn't necessarily enough to mitigate the problem in current conditions.

The problem may resolve itself once the weather warms up, and as John D says above, there's plenty of good advice on this forum about tackling condensation in lofts. Hard to tell without more detail, but there's no indication from your post that the roofer has done anything wrong.