Sorry for the previous post, hope this makes more sense!
I live in upstate NY and have been asked to remedy a low pitched cathedral roof section that has noticable signs of water damage at the ridge where it meets a steeply pitched section, on the other side. The wall board tape is peeling, etc. The owner says that when there is a warm up, the water starts dripping. I suppose that moisture is entering the roof cavity through the can lights and freezing. The cathedral is less than 2:12 and meets a 14:12. The cathedral is insulated with 12" bats and has a vapor barrier between insulation and sheetrock, but no air space for venting. The ridge is not vented on the cathedral side, but has soffit venting. There are also can lights that are probably leaking heat and moisture, not helping the matter. If I gut the ceiling and insulation, pull the can lights, provide air space with styrofaom baffles to the ridge, add vapor barrier, **how do I than ventilate this tricky low slope situation.**There is currently a ridge vent situation that goes from the steep slope over the top to the low slope, but there is no way for the air to get into it from the low slope, no air space cut into the ridge on the low pitch. I think the the ridge vent might also leak where it comes over onto the 2:12.