Well mainly it s a way to save space.
Attic fan ductwork.
In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover.
I called out the original hvac company and they took a look and said they saw no water.
I have no choice but to keep my ducts in the attic and it gets 106 in eastern oklahoma.
The attic ductwork is flex duct work.
Old small 1000sf house no other vents but the gable.
I was thinking of installing a attire fan nearby until i read your list of useless devices.
Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.
When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
So why put an hvac system up in the attic at all.
Condensation can be a problem in an uninsulated attic so the homeowners trades resource center recommends installing rigid pipe with a minimum slope of 1 8 inch per foot toward the vent outlet to keep water away from the fan.
On his web page.
During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.
Bathroom exhaust fans perform an important function by removing excess moisture from your home.
The attic fan was pulling air from the house into the ducts then out of the ducts in to the attic through leaks in the ducts.
It was new when the ac was put in 7 years ago.
Because the average humidity level is 10 20 in phoenix.
In some localities the building department may require the use of r 3 to r 8 fiberglass pipe insulation to control condensation and even when it isn t required it s.
Think about it condensation on ductwork probably isn t a big problem in phoenix arizona but why.
That same week in the same area i saw an attic fan someone had just purchased right next to a dehumidifier also new in the box.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.
Options for venting a bathroom exhaust fan include best to worst.
With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly.
One of the a c ducts in my attic is sweating sometimes especially when the a c is running for a while at a time.
Its hard to get to being in a crawl space.
If i add a gable fan or turbine would that make any difference at all to keep the duct work from heating up.
However an attic in pensacola florida is likely to have a humidity level closer to 100 and the risk of condensation on ductwork would then go up quite a bit.
Attic hvac systems save space.
