Frigidaire Dryer doesn't dry

3 pairs of jeans takes two 90 min. cycles to dry on ‘timed’ dry. Towels do not dry on ‘sensor’ setting for towels. The drum turns and it heats up, but clothes are wetter after 90 minutes than went they were put in the dryer. When I open the door after the first 90 min. water drips down the inside of the door. Took off the 4" venting, cleaned out thoroughly, went into attic crawspace, followed the rigid venting (two 90 deg. bends) to where it exits the roof. Water is dripping on the inside of the exhaust vent onto the ‘blown’ insulation. This wet insulation sits above the family room ceiling. (No stains on the ceiling - yet) Looked outside at the roof and you can see the ‘steam’ exiting the vent. This exhaust vent is not insulated unlike the bathroom fan ventilations. What is wrong??

How far of straight runs do you have? if it’s over 10 ft. (with the 2 bends is equal to a 30 ft run for air push)
Clean the vent stating from inside the dryer all the way to the outside. By the sounds of it you may want to re-pipe the vent anyway with a straighter run.

Nat

The condensation is caused by air temps. Like a window in the winter gets condensation on it.
You must remember that the dryer is pulling the moisture out of the clothes and carrying it to the out side. And with the dryer vent pipe going thru your attic the average temp for a dryer exhaust is around 140 and the air in the attic probably isn’t anywhere near that, especially if you have adequate ventilation.

Nat

Thank you for all the information. I will be calling the builder to see if there is another possible way to vent this dryer.