New Roof Ventilation Question

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I’ve been looking on Google but can’t find the answer to my question. I had a new roof put on last month with breathable membrane and vents in the eaves and ridge. Insulation was also upgraded. However since the roof went on I’m having really bad condensation in my loft that wasn’t there before.

I’m meant to have eaves to ridge ventilation. I can’t tell if the eaves or over fascia vents have been installed but looking up in my loft hatch I can seen the ridge/apex of roof from inside and the membrane has been enclosed over it. There is no visible gap for moisture to escape as part of the ventilated dry ridge system. My question is does this still classify as a ventilated dry ridge? Is the membrane meant to be cut to create a vented gap? Could the gap just not be visible from inside? I’m not a roofer and the roofer who did my roof isn’t getting back to me.

Also I have a copy of a building regulations compliance certificate that the roofing company has self certified but I’m not sure if they’ve complied with the ventilation aspect of it. From what I’ve read online building regs state:

‘If a building is 10 metres wide or more or the roof pitch 35 degrees or above, then 10mm eaves ventilation is required together with 5mm ridge ventilation.’

My house is 5 bed detached house with a gable roof so I would have the above applied. Any advice is gratefully received.
 
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I’ve been looking on Google but can’t find the answer to my question. I had a new roof put on last month with breathable membrane and vents in the eaves and ridge. Insulation was also upgraded. However since the roof went on I’m having really bad condensation in my loft that wasn’t there before.

I’m meant to have eaves to ridge ventilation. I can’t tell if the eaves or over fascia vents have been installed but looking up in my loft hatch I can seen the ridge/apex of roof from inside and the membrane has been enclosed over it. There is no visible gap for moisture to escape as part of the ventilated dry ridge system. My question is does this still classify as a ventilated dry ridge? Is the membrane meant to be cut to create a vented gap? Could the gap just not be visible from inside? I’m not a roofer and the roofer who did my roof isn’t getting back to me.

Also I have a copy of a building regulations compliance certificate that the roofing company has self certified but I’m not sure if they’ve complied with the ventilation aspect of it. From what I’ve read online building regs state:

‘If a building is 10 metres wide or more or the roof pitch 35 degrees or above, then 10mm eaves ventilation is required together with 5mm ridge ventilation.’

My house is 5 bed detached house with a gable roof so I would have the above applied. Any advice is gratefully received.
We fit OFV's eaves vents (as well as dry ridge vent system) as standard...



 
How do you know it wasn't there before? What was the prior roof structure?
 
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We fit OFV's eaves vents (as well as dry ridge vent system) as standard...



I I have those vents fitted instead of soffit ones. I can feel air coming up but I can’t see them from inside the roof space or looking up from outside. My question is about the ridge ventilation. Are all dry ridges vented? This is what the ridge from inside my loft looks like. Should there be a vent gap in the membrane or is there another way of venting the ridge?

Also this problem started with the really cold snap a couple of weeks ago and frost appearing in the roof space over night. You replied to my thread on that issue and said it was normal which was reassuring. The frost melted and left what looked like bad condensation in the loft which has sat there for the past two weeks. The strong winds yesterday have got rid of all the moisture and now the loft space is dry despite it being quite cold last night. Thank you for your insights into my roofing issues!
 

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How do you know it wasn't there before? What was the prior roof structure?
It could have been there and it was harder to spot on the old felt. My old roof had much less ventilation, and non breathable felt. As I said in my post above, inside my roof space is now dry thanks to the strong winds yesterday and no new condensation has appeared overnight. I’m hoping it was caused by frost in the roof space during the really cold snap and it’s not going to be an ongoing problem.
 

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