Contractor/House Construction Question - Any experts out there?

Sounds like paranormal activity. Where it's cold, it's where is haunted

 

I can't help.

Just in here to encourage you to posts pics of you and your wife upping your pajama game.

 

The temperature difference is much larger in winter than summer so insulation is more important. 30-74 is twice as much as 90-74. So you have a heat loss issue, probably because the room is over a (unheated) garage.

 

If there is condensation between the panes of glass on the window, the glass isn't sealed in properly. Having a window guy come would help. Also, you may be able to help things by simply stapling some insulation to the ceiling of your garage. It's easier than opening up the sheetrock and reinsulating everything.

On the heater side, it's possible that there's a tear in the duct to the vent in your room, so you're heating the attic instead. You should be able to tell if you go up there and look. Also, you say the house was redone, but if it was an old house and the ducting was not replaced, the diameter of the ducts may be too small to push enough heat to your room.

Finally, open the bedroom door when you go to sleep.

My credentials: Almost none.

 

I would hazard a guess that the window is metal framed. Per the condensation developing. Metal frames and temp variances between interior and exterior creating the condensation, more than likely the sash is leaking exacerbating the issue.

Check to insure the window is locking properly. Also run your hand along the sash if you feel cold air it is a sign the window is not sealing properly. Options are limited to replacement. Just because the window is double pane doesnt mean its working or effective. The moving parts and frame make up a percentage of the window. Make sure the water is pooling and sitting. It could cause damage to sheet rock over time and mold growth.

The Depot has insulated foam sheets with a radiant barrier 3/4" should suffice. You can cut these and install onto your garage door with the radiant side facing out. It will help in the summer and winter. Also check to if the base of the garage door has a seal with the ground to reduce air infiltration. You can even install these on the roof of your garage to provide some insulation value to the floor.

Unfortunately a lot of garages outside walls are not insulated which doesn't help. More expensive options have foam injected into the garage ceiling, walls to insulate.

Check your vents in the attic as mentioned above.

 

Transom window, is the air vent blown in the direction to that window?