Our house was built in the 1940s and as such the attic had no ventilation. After a particularly hot summer last year, this spring I installed a roof turbine and vents under the eaves (as well as replacing the two largest windows with dual-paned versions), which allowed me to keep the temp at a max of about 80F, instead of 90F the previous year. However, winter has come at a recent cold spell (I know, I know, 32F is nothing compared to others…) and the house seems to cool faster than normal (from 70F to 65F in around 2 hours). I had assumed that the dual-paned windows would help keep the head in more than normal (you could feel the cold air coming in through the single paned version), so my question is this:
Will covering the turbine with such tarps as I’ve seen such things at hardware stores keep the house warmer?
Two additional facts: The insulation appears to be blown in rock wool, the age of which I’m not sure, but would assume to be at least 10 years, since that when a pervious owner remodled the ceiling; and the roofing is composed of wooden shingles directly on top of the rafters, with two layers of cement shingles on top of them.