Hi guys, we're having a problem with a couple of hot rooms, and I thought the HVAC forum would be the best place to ask. We have a house that's roughly 3.5 years old and well-insulated (as far as we know). We have two front bedrooms that directly face the eastern sun all morning. Those two rooms also have very large windows, and the room that gets the hottest also has a crescent window above the main window. We're talking big windows - they take up 70 to 80% of the walls. This is a one-story house. I don't know specifically what type of windows are installed, but I suspect they're just the basic "entry level" window that a builder would choose by default.
We set the thermostat on 76/77 during the day, and the main rooms and other bedrooms stay at about 76 to 78 during the day. However, those two front bedrooms get well up into the mid 80's. I'm thinking that it has to be the windows letting in all the heat, right? Both rooms have one A/C vent, with no return vent, and we leave the bedroom doors open. The rest of the house stays where it "should" be, and the only difference between these rooms and the rest of the house is the huge sun-facing windows.
We were thinking of having the windows tinted as a first step, before we dive into a bunch of expensive HVAC work. What do you guys think? I know this is sort of a vague problem without knowing a lot more details, but I'm just doing some brainstorming at this point.