Running Dryer Vent Through Floor Joist

The dryer vent will go down into a 4d the turn right for about 4 feet within the flooring then moves into unheated uncooled attic space before the up and over and then down through the soffit with a lambro soffit dryer vent another 11 ft in the attic.

Running dryer vent through floor joist. As for the location of the dryer vent that depends upon the dryer. It may be easier to take another route even if it s slightly longer. Extend the pipe through the hole in the wall or floor and route it toward the vent cap. Yes cutting anything on the i joist is a no no and wouldn t or shouldn t pass inspection.

The only way to get up and out in my preferred location is to go through ceiling and make a 90 degree between floor joists and out through header joist. Sister two 2x4s between the full joists one on each side of the header alongng the bottom edge and secure with 16d nails from both sides and into both ends. Ducts should be able to run between studs in the wall and then turn into a joist bay the space between two joists. Now just make your hole for the duct holesaw or reciprocating saw above the 2x4 s.

You could run 4 vent pipe parallel to the joists without any problems. Let s see if i can make a drawing. I have 2x8 floor joists and 16in on center so i m sure there s more than enough room in there to place the vent pipe. Clamp the vent pipe to the dryer s vent outlet with a pipe clamp and tighten the clamp with a screwdriver.

Where changes of direction are required use 4 inch aluminum elbows. This space is the logical exit point for dryer and furnace vents big electrical service wires and fireplace fresh air intakes. Dryer box makes a box for your application the down box. Otherwise you would have to mount the box upside down and cut a huge hole through the floor.

The rim joist fig. Hang the pipe from the floor joists don t let it drape on the ground. Remember the flex pipe and elbow coming out of the dryer and up down to the vent line count as elbows in the total run of the dryer duct. B the framing member that runs around the perimeter of your house and that the floor joists butt into often gets riddled with large holes.

Map out your duct path to upper floors before you start cutting any holes. Build 2 6 stud walls where dwv pipes and holes exceed the limits shown in fig.