Dormers – Exterior Insulation Details
My historic 1.5 story farmhouse in Northern Vermont has 3 doghouse dormers with no insulation. I’m replacing some rotted boards and reroofing. I’d like to add rigid insulation on the exterior of the dormers. I will have to build up the dormer roof to extend it over the rigid insulation on the dormer walls. I’m wondering if anyone has any good details insulating and flashing a dormer from the outside?
Please note – I can add rigid insulation to the top of the dormer roof and walls. However, I am not adding exterior insulation to the entire roof of the house at this time. I couldn’t find a contractor to do it and the roof is leaking now.
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