I live in a 3 story townhouse (2300 sq ft) with forced hot air. 2 of the bedrooms (about 70 sq ft each) face the north, so when the cold winds blow in the winter, these rooms are often 10-14 degrees colder than the rest of the house, even though they are on the 3rd floor (heat rises).
However, under one of the bedrooms overhangs an open front porch underneath (30% of the upstairs bedroom overhangs the open front porch underneath) and over the other bedroom is an enclosed garage. Needless to say, the bedroom over the front porch gets very COLD in the winter, since there is only cold air underneath from the front porch. The other bedroom get cold with the enclosed garage underneath, but not as bad.
I can feel cold air pouring through the electrical sockets on the northern wall and from the portion of the floorboard which is over the front porch. This is a new house (2002), and the builder has had the HVAC guys take a look at the furnace but nothing has helped.
When I asked if the room is properly insulated, the builder says "yes", but how do I know short of tearing open the wall facing the north? The builder also says the soffit above the front porch and below the overhaniging bedroom cannot have insulation b/c the front porch is exposed to wind blown rain and the insulation can get mold. Is this true or BS? What remedies are available to better heat/insulate this room? Are there insulation covering I can use on the inside of electrical sockets? I have top insultation blinds over the windows too.
Any advice appreciated. I understand having an open front porch underneath an overhanging upstairs bedroom will create drafts in the winter, especially since the bedroom faces the cold north winds, but there has to be something I can do from an insulation standpoint.
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