Hey sirsmokealot23 :thumbsup:

I'm sure by the screen name you thought I was an Iksar ShadowKnight, but IRL I am a Carpenter.
If your grow is in an attic, your temps. are way higher than outside.
If your space has no insulation you need to install at least some R-19, cealing,walls, and floor.
2 reasons, heat loss/gain, and heat signature. In winter you will lose all your heat/summer gain, and also have a big signature." Only spot on roof with no snow"
In a pinch you can pull air from the floor below the grow. Find an uninsulated wall " Most Interior Walls" and drill a 3" hole or a 4" on a 6" wall, in the top plate. Find the bay below,"Between the Studs", and cut in a vent. A lot of sizes and styles are available for the vent cover. With an exaust this will work great. "BUT not in an OPEN attic"
In a 10x10x8 attic you must live in a Victorian or a real high end home.

Just pull in some fresh air, AC is good, but fresh is a need.
Good Luck