 you're under ventilated, brother. You need to add some vents. Then at that point, you guys kind of figure out what kind of vents I need and where they need to be. And then you guys actually put them in too? That's right. We sure do. Okay. Yeah. You got to have balanced airflow, airflow in, airflow out. It has to be balanced. If it's out of balance, it don't flow properly. And then a lot of times you can even have mold mildew. We've seen that in attics too, where there's too much moisture. They've put, it's like vapor lock. They put the material on top of the roof and