Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic.
Blow hot air into attic from closet.
That is because the temperature difference is leveling out due to the hot air from the attic moving down into the colder wall.
Adding a server closet return.
My idea is to vent the build up of hot air that has risen to the ceiling in the hotspot rooms into the attic so that air from cooler parts of the house can move in.
The condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house.
In the winter months you will be injecting hot air into the room compounding the problem.
Kadin2048 i writes i don t think that condensation in the attic is really a problem in my area the attic is so hot it s almost certainly warmer near the peak than the exhaust air from the ac but in some areas or if you were using the ac to cool a particularly hot room like a server closet on a cool day it very well might be a problem.
It draws cooler outside air in through open doors and windows to create a pleasant breeze that pushes hot air out through attic vents.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
However with that understanding that creating negative pressure in the attic can cause all kinds of problems sucking out air from the conditioned space possible back drafting of combustion appliances etc he has come up with the idea to blow air into the attic instead i e creating positive pressure to force the hot air out.
Two types of booster.
That is because the hot air from the attic is being drawn down behind the drywall into the wall cavity.
The opening around a furnace or water heater flue is a major source of warm air into the attic photo 5.
Of clearance from class b flues 2 in.
To solve for exhausting this heat i took a two pronged approach.
You can see the wall gets cooler the lower you go.
What we need to do is exhaust the warm air from the room not inject air.
Low cfm similar to a bathroom vent 300cfm and only in the hot spots basically by adding an inline ducting fan to the return ducts for the hotspot rooms.
Because the pipe gets hot building codes require 1 in.
Put it in an attic full of blown insulation and you re.
A ventilator fan can blow conditioned air up or down depending on the position of the blower unit.