Shock999

Hi this is what I wanted to ask, can't the ventilation still happen behind the foil? like below? There is a new dry ridge installed which happened when the loft was installed. There is still plenty of space behind the foil, the drafters are empty. They are only half filled with PIR after the Purlin wall?

Hi guys, Have recently had an loft conversion done that has an uninsulated eves in one side for storage with a small hatch on the purlin wall for access. The Purlin wall is insulated, but the small door seem to let in cold air. I want to use the eves for storage, but its not insulated and gets very dusty as this side of the roof is facing the road. (the roofer had attached a roof membrane under the drafters but this doesn't do much. here is a picture as I would describe it.(ignore the bad drawing please) So, over the weekend, in my wisdom I decided to insulate the underside of the roof timber with foil insulation, and I think I have stopped most of the draft and dirt coming in. In my head there is still plenty of ventilation above the foil to keep the timber healthy? Have I thought this right? Here is where I have added a foil . here is a picture of my foil work. Have I thought this right? Its nor perfect, I just wanted draft & dust to stop, it probably isn't fully wind-proof, but thats ok. Is this going to cause issues of condensation in the roof rafters? Have I messed up? I could have used PIR insulation between the rafters, but the hatch door is small and would have made the job very difficult. I mainly want the wind and dust to stop and am aware that the foil won't stop the cold coming in. But now I am concerned that its going to cause condensation. Or am I over thinking this? as there is over 100mm ventilation above the foil and the roof tiles?

Hi all, mainly doing ad-hoc maintenance and mods to the house. Been using this forum for number of years to read, but finally decided to sign up