Flexible Metal Dryer Duct Against Floor Joist

Keep the pipe as straight as possible because lint collects in sags.

Flexible metal dryer duct against floor joist. Fire resistant for safe use in high heat conditions. How to install a dryer vent and make sure that it is safe. Local codes require no less than 7. Some are flexible and others are rigid.

I can t meet the 7 mark but the local authorities will give me a variance if i do the following. Because all types are sold for use with dryers you would naturally assume that all are suitable for this application. Duct joints shall be installed so that the male end of the duct points in the direction of the airflow. The master flow 6 in.

Insulated flexible duct r8 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications. What the installer did here was to screw a piece of sheet metal to the bottom of the joists and attach a duct to it to carry the air back to the hvac system. The duct has r8 insulation which contains 50 more insulation than the standard r4 2 product. I am remodeling my basement and have a ceiling clearance issue.

How to install a clothes dryer exhaust vent. Ul listed dryer duct. Except for the first 7 feet of the supply run raise the supply run so it is directly up against the floor joists. Crush resistant to maintain continuous airflow.

Easy installation no elbows or cutting required. Concealed ducting must be rigid metal galvanized or aluminum duct. Most dryer ducts are round and 4 inches in diameter. For safety reasons and added peace of mind only ul2158a listed ducting like dryerflex should be used to connect the dryer s exhaust system non listed hose such as that commonly used to vent bathroom fans should never be used.

Also we explain and illustrate problems that result from improper dryer vent. Do not use the plastic or vinyl. Semi rigid flexible metal design allows for 90 degree turns. Vinyl duct and in some situations all flexible duct is not allowed by building codes.

Includes one 8 ft. Hang the pipe from the floor joists with plumbing strapping. In this case it s big enough that there s even a joist running right through the middle. To prevent problems use saddles or straps to support at regular intervals 4c 4d follow the manufacturer s instructions but in case they get lost here is a list of best practices for.

Sometimes the best route for a flexible duct run is up and over an obstruction. But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b. This additional insulation provides greater thermal efficiency to save energy. This would raise the ductwork 1 2 to 1.

While building code and dryer manufacturers all require a ul 2158a listed transition duct there are differences upon. The flexible metal dryer transition duct is designed for both top load and front load dryers. Choose the highest ul fire resistance class. As we look closer here s what we see in this house.

Clothes dryer exhaust vent installation or dryer vent duct cuct intallation specifications. Is that a towel in there. Flexible transition hose between the dryer and the wall outlet should be either the foil type or the aluminum flexible duct most preferred.