In your case you might need to disconnect the vent pipe in the attic and fish a dryer cleaning brush with an extension handle down it from there to be able to reach the entire length of pipe.
Cleaning dryer vent in attic.
Before climbing up to the roof get behind the dryer to vacuum out the vent.
Next you need to buy a specialized dryer vent cleaning kit.
The warm moist air inside the vent tends to.
It consists of a lint brush and six 2 foot long flexible segments.
Or at least here in my neck of the woods.
At least once per year unplug the dryer and check the area where the exhaust vent connects to the dryer.
The first thing you have to do is locate where the duct begins and ends.
I clean the vents monthly.
It only takes a few minutes and the peace of mind is well worth the minimal effort.
The dryers i service are in use almost 24 hours a day seven days a week.
There is a metal roof flashing covering the vent pipe.
I picked this one up at my local home depot for 19.
If you have a gas dryer turn the supply valve off while cleaning.
The problem with attics the attic is usually colder than the rest of the house during the winter and that can create a problem for a dryer vent.
Disconnect the dryer duct from the back of the dryer.
Lint from the dryer is collecting on the insulation in the attic.
What s the best way to add attic ventilation without soffit vents.
You join these.
How not to clean a dryer vent duct watch this before you clean a vent.
The tools and supplies you need to clean a dryer vent duct include a vacuum with a long hose attachment dryer vent brush kit screwdrivers and ul listed metal foil duct tape.
The hose or pipe is held in place by a clip or a steel clamp that can be loosened with pliers or a screwdriver.
The first step on how to clean a dryer vent is to unplug the dryer.
After removing the pipe reach inside the dryer opening or use a vent brush to remove as much lint as possible.
My gas dryer aluminum duct pipe vents into the attic about 3 inches from the roof.
Should the duct pipe be extended so that the lint would go outside the attic on to the roof.
Pull the dryer away from the wall about a foot to begin cleaning your dryer vent.
There should be clamps that connect the exhaust pipe of the dryer to the vent.
Check out the dryer vent safety link in the article above for more information.