So, let me see if I got this right..... I am in a similar boat and wife is bugging me to paint the outside of the house.... And she is pushing me to use a sprayer..... Are you guys saying that in general it would be faster for me to brush/roll it on and also are you saying that even if i do spray, I will likely have to back brush or back roll over it again anyway?
Depends on the surface. Spraying is definitely the way to go on rough surfaces and back rolling helps work it in.
@Jordan if your new house is slick wall you need to go in at night with a strong narrow beam flashlight and shine it parallel to to wall surface to look for humps and edges in the taping. That is unless it's plaster.
And you can paint at night with the right lighting. Couple of twin 500w lights on poles and you can actually see more at night than on some days. If you rent a gun, get a pole extension for it. Even just a 3 foot section is good especially for the ceilings unless you're 7 feet tall. Your arm will want to fall off after the first hour if you're not used to using a spray gun. The pole allows you to keep your arm closer to your body.
As I mentioned, do not fan the gun with your strokes and start a pattern of up and down or side to side and stick with your pattern like you were laying bricks on a wall. Overlap enough to see a good wet coat and don't make runs. Keep the gun at a right angle to the surface. Pole guns allow you to do that because you can angle the tip on the extension and paint w/o a ladder to about 9 or 10' up. After that you lose control of the gun. Get on a ladder or scaffold.
An old painter told me that if the paint is on evenly, it won't run even if a bit of a heavy coat. Surface tension will hold it unless you make a big fat pass over something already wet. Working a pattern is the key. I see so many so called painters (they want you to think they are painters because they were white pants) waving the gun around helter skelter. They look like they are tracing a maze. That is not the way to paint with a spray gun.
Before becoming a general contractor I was a union painter for 4 years and then an independent for 6 more years. I still paint — I was out painting for a customer earlier today. Good money in painting if you're good at it.