sean99
pfm Member
Hello
Had this when I first moved in property it had been unouciped for four years wasn't sure if it was just damp.hot summer followed come winter loft ringing wet off timbers and felt and stuff stored in it also, fitted vents to the soffit lots of them its a bungalow no noticeable improvement then had some tiles replaced with vented ones damp gone and not been back, the insulation is probably a couple of feet thick. My mothers bungalow is now damp in the loft although never before,we live in the south east England probably just keep an eye on hers for the mean time.
Regards
Stuart
It's not entirely surprising that soffit vents alone didn't help much. In the US it's recommended to combine soffit vents with ridge vents so that warm (humid) air leaves via the ridge and draws colder, hopefully drier air through the soffits. I imagine your vented tiles serve a similar purpose to the ridge vents - to provide venting near the peak of the roof.
It's also looking for dirty brown patches in the insulation which could indicate warm air (higher humidity) being drawn into the attic from the living space. Sealing those leaks will save money and reduce condensation in the attic.