Our home is mainly on single level but we have one attic bedroom served by a stairway.
We have a 3 ton central heat pump with insulated ducts running through attic space to most rooms. We have two air returns one of which is about 2/3 way up in stairwell near door of attic bedroom.
There are two 6x12 air supply registers in the 15x10 attic bedroom. They are low down because ducts run through the wing wall cavities.
Only the end wall with window and a small part of the ceiling have a roof directly above. The rest of the ceiling has unfinished attics one each side (House is Tee-shaped). Those attics have static roof vents.
We are in Ontario Canada. Outside temperatures are currently in low/ mid 80s, attic is about 90 while ground floor (where thermostat is) is at 74.
Finally my questions!
What would you suggest as a good way of improving cooling in the attic bedroom?
We are considering having contractor strip the ceiling (acoustic tiles) and end wall with view to improving insulation either by installing block foam insulation or spraying.
Another consideration, would be to install a window or portable air conditioner just for this room (It is a guest room, so these would only be used when needed.
Another idea would be to install a window fan and exhaust the hot air. We currently use an oscillating fan to try and mix hot air at peak of a-frame ceiling with cooler floor air. Because of furniture, this doesn't work well.
At this point, I don't know whether I need a building contractor or HVAC help.