This is due to the development of condensation within the ducts leading to mold growth.
Attic swamp cooler.
Evaporative coolers installed with up ducts will need additional attic ventilation.
Oem tools 23977 5 300 cfm evaporative cooler covers area up to 1 600 square feet oscillates for even air flow connects directly to hose grey 5300 4 1 out of 5 stars 30 629 98 629.
In this case the most reflective roofing material ivory ir selective metal tile is 23 4 f cooler than attic covered with dark shingles.
Dry air feels cooler this is a cheap setup compared to central air.
Also leave the windows inside your house open 1 2 inches when you re running the swamp cooler since there needs to be some airflow for the cooler to work properly.
Up ducts open to exhaust warm air into the attic as cooler air comes in from the evaporative cooler.
Optional filters remove most of the dust from incoming air an attractive option for homeowners concerned about allergies.
Good if you have a shady side to suck air in from very good when the temps get cool at night.
Expensive worth it but will cost on your power bill of course.
It is best to remove the ductwork from your attic when you remove a swamp cooler from the roof.
This is an inexpensive and easily accomplished task.
Evaporative coolers need to have an exit to the outside to work properly and efficiently.
This lets you keep the windows closed and still provide a pathway to the outside.
Most people open a window.
The third graph shows attic temperatures from the middle of the attic for several different types of roofing as well as a sealed attic.
The purpose of this vent is specifically to let the air from an evaporative cooller swamp cooler pass through the house and into the attic.
Evaporative coolers are most effective in areas of low humidity and hot temperatures.
To make the air colder in a swamp cooler try cleaning out the filters inside which will make the cooler operate more effectively.
Right now not so much if we don t get under 60 at night.