Adding a server closet return.
Blow hot air into attic from closet.
To solve for exhausting this heat i took a two pronged approach.
Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor.
A duct or vent booster fan can increase the flow of cool air into that room.
Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic.
It draws cooler outside air in through open doors and windows to create a pleasant breeze that pushes hot air out through attic vents.
Of clearance from class b flues 2 in.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
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.
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.
Install electric ventilators and attic fans which remove hot air from an attic.
What we need to do is exhaust the warm air from the room not inject air.
Put it in an attic full of blown insulation and you re.
Much of that heat then conducts downward and finds its way into.
Some of that heat gets into the air above the hot materials on the attic floor but the attic air getting heated up is a secondary effect.
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.
A ventilator fan can blow conditioned air up or down depending on the position of the blower unit.
In the winter months you will be injecting hot air into the room compounding the problem.
The opening around a furnace or water heater flue is a major source of warm air into the attic photo 5.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Two types of booster.
But it gets worse.
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.