Hi,
I recently purchased 100-year old Dutch Colonial with a gambrel roof so that the outside walls on the second floor are sloped. There is no insulation in the house and no soffit vents. It has a ridge vent and two gable vents with fans both blowing out. (These are used on hot nights, along with opening the pull-down stair case to vent the whole house. The house is in Massachusetts.)
I plan to use fiberglass rolls or mat in the attic but am concerned about the walls which include the lower portion of the gambrel roof. Blowing in fiberglass or cellulose will assure that there is no ventilation in this lower portion of the roof - will that create problems? There may be some ventilation now through the walls but that will be blocked by the blown-in.
The short version of this question: is it okay to use blown in insulation on the lower portion of a gambrel roof?
(I haven't decided on using cellulose or fiberglass for this application - that is a question for another day?)
Thanks, Scott