Attic condensation after insulation install

[Reprnow]

Hi,

I have some attic condensation that has worsened after installing 170MM insulation last year and the wet winter. Some white mold now appears to have spread on the felt and edges of the rafters on the north side, which is concerning. The floorboards are dry though.

This is a 70s roof with no soffit vents and bitumen felt. I have had the bathroom ducking done, cleared the area around the passive air pipe and will add some felt air vents later this week. It is hard to achieve full seal as the narrow eaves are hard to access. Any tips would be highly appreciated before roofers comes in.

Ta

 

[endecotp]

no soffit vents

I guess that's what you need to fix.

 

[Reprnow]

This is where to roof meets the external wall. Not much space for vent, or is there a way?

 

[noseall]

This is where to roof meets the external wall. Not much space for vent, or is there a way?

OFV's - over-fascia vents.

 

[^woody^]

This is oh-so-common.

Google for lap vents or make your own.

 

[Reprnow]

Thank you, I will place the lap vents later this week. I also wonder if my laundry air dryer in the living room is not making matters worse. I have ordered a deshumidifier for laundry that should r duce the house humidity level.