John_10

Thanks all. This is how the battens look. Spoke to the building inspector today. He reckons it should be okay, as only a small area of pitch is affected, and it's a breathing membrane with a least some air gap.

Hi, thanks for the replies so far. I've added a few more photos to further illustrate the current situation. As you see, the eaves have also not been left with much air space and size of the rafters.

Hi, about to have a DIY meltdown with my 1890 terrace house. New slate roof with vented ridge and breathable membrane installed (pulled taught). 50mm PIR between rafters on the pitched roof that enters the bedrooms (about 1.4m in length), and then 50mm insulation plasterboard installed. Has all been plastered and decorated. However, I've realised I've only left a 10mm air gap between PIR and membrane. Minimum airflow already exists in eaves. I would be most grateful for any advice please on what my options are to resolve? I was meant to be moving in next week...