Excessive heat deteriorates items you store in the attic and can cause moisture.
Townhouse air conditioner attic above garage gets too hot.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
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.
When your ac unit starts pumping cool air into your townhouse warmer air in the space is going to quickly try to make it s way to the highest point it can find.
Well mainly it s a way to save space.
The natural rise of heated air.
The garage attached to my townhome gets the full afternoon sun.
Thus hot attic air is moving through this space heating the floor of the room and rendering the insulation useless.
That way hot air in summer and cold air in winter can t enter the room as easily.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
It wants to move.
There s some attic space above the front half of the garage and two bedrooms over the rear half of the garage both of which get very warm during the summer.
High temperatures inside your attic shorten the life span of shingles.
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.
One of the cheapest garage cooling solutions you can use that s still effective is a simple oscillating household fan.
Yes that bedroom above your garage really can be comfortable.
As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in.
Attic hvac systems save space.
When it s cold outside these treatments keep more warm air inside the room.
Do not use mechanical means electric attic fans.
So why put an hvac system up in the attic at all.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
The temperature in the garage has reached 110 degrees at times this summer.
Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.
Install electric ventilators and attic fans which remove hot air from an attic.
Using air conditioning in the garage might also be too cost prohibitive for your liking.
It s a thermodynamic principle that hot air will rise in order to try and escape an enclosed space like your home.
And when it s hot outside they prevent more hot air from entering.
A hot attic is bad for several reasons.