this...worked wonders for our previous house. Tinting the windows is also a good idea.

--Plant a big tree outside that room that will provide shade to that part of the house.

--Go to Home Depot/Lowes and fully insulate the attic above that room (might as well do the whole attic) with extra layers of insulation

--Insulate/line the windows

--set up a cross draft/cross ventilation at night time by cracking open a window in that room and a window perpendicular to the one you cracked open

--Buy a really big Yeti cooler and sleep in it (don't forget to make some air holes)

--Cover the inside of the windows with Reflectix (really cheap at Home Depot/Lowes). Might as well line the entire room with it while you're at it.

My office was way too hot. I had to have the AC unit replaced and had them add an intake near the ceiling to draw warm air from the office. That also makes the AC pull cooler air into the room from the hallway.

Drawing hot air out will be as effective as moving cool air in.

Get a mini split system for that room. You could hang meat in there with it.

Put aluminum foil on the windows. Not only will it block the sun, it will look classy.

And the blocking other vents as I learned is not always a good idea. I was an inspector many years ago and spoke with many AC guys about this. I maybe wrong and if there is a pro out there that knows the truth, then please correct me. But I learned (and this is for the most part not a golden rule) that AC units are installed for size based on the size of the house (how many square feet versus tons it takes to cool it). Closing certain vents actually can cause it to "back up" and actually lose efficiency. I was told it is better to keep all the vents open to create a even flow for the system.

I tend to agree. Its not like the air will circle back, against the incoming air, and land coming out of another vent... I think it just creates pressure and leaks out anyways just slow.

But I tried it, no real difference.

These problems are why towns like Frisco are making us put returns in every room in all new houses.

Shed the Derek blanket?

That is a good point when we upgraded our HVAC they installed a 2nd air return just outside the room that was not getting enough air.

I have not got it yet.

I think its gonna take some time but I am eager to see it.

I could tell you what is going on, but I would have to stop by.My guess is insufficient return in the master. What is the delta T?

You're going to love it. I have to give 1shot credit for helping me with the pic.

Let my Ex Wife sleep with you. Problem solved