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Dryer Transition Vents

Accordion Style Foil Transition Vent

Not Recommended

Semirigid Transition Vent

Acceptable if Installed Correctly

DryerFlex® Transition Vent


Manufacturer Specifications

Every professional organization including the Chimney Safety Institute of America (CSIA), National Fire Protection Association (NFPA), the U.S. Fire Administration, as well as the international building code that is used in Florida recommends following manufacture specifications.  This is because licensed engineers designed and tested the dryer under specific conditions for efficient and safe use.

Almost all manufactures specify that Accordin Style foil transition vents should not be used with their dryer.  You can read further to better understand why.

Semirigid / DryerFlex vs Accordion 

The type of transition vent you use for your dryer can significantly impact lint build-up and the frequency of cleanings, especially when the vent terminates on the roof. Here’s why a correctly installed semirigid transition vent or a DryerFlex® transition vent is preferable over an accordion foil vent:

Advantages of a semirigid transition vent or DryerFlex® transition vents:

    • Reduced lint trapping: Semirigid vents and DryerFlex® transition vents maintain a smoother internal surface due to their stiffer construction, minimizing areas where lint can snag and accumulate. This is crucial for roof terminations, where gravity alone won’t effectively dislodge lint build-up.
    • Improved airflow: The sturdier structure of semirigid vents DryerFlex® vents minimizes kinks and constrictions,allowing for better airflow compared to the accordion style. This efficient airflow helps prevent lint from getting stuck in the first place.
    • Durability: Semirigid vents and DryerFlex® vents are more resistant to rips, tears, and punctures compared to the delicate foils. This is important for roof installations exposed to weather elements and potential animal interferenceDryerFlex® transition vent.

      Frequency of dryer vent cleaning:

      With a correctly installed semirigid transition vent or DryerFlex® transition vent, the smooth surface, improved airflow, and reduced lint build-up can potentially extend the time between dryer vent cleanings. The frequency depends on factors like dryer usage, lint volume, and vent length. Generally, in The Villages, cleaning every 2-4 years is recommended with a semirigid vent, while accordion vents might need cleaning every 1-2 years due to increased lint trapping.

      DryerFlex vs. Semirigid

      While both semirigid and DryerFlex® transition vents offer advantages over accordion foil vents for roof-terminated dryer systems, DryerFlex® boasts several unique strengths that might make it a preferable choice in some situations. Here’s a comparison:

            Advantages of DryerFlex® over Semirigid Vents:

                      • Flexiblity: DryerFlex® combines the airflow efficiency and crush resistance of semi-rigid ducts with the ease of maneuvering and tight-turn capability of foil vents. This makes it ideal for tight spaces or complex vent runs where rigid turns are required.
                          • Fire Safety: Both vents are UL-listed for fire safety, but DryerFlex® is tested to withstand higher temperatures.For fire resistance performance, DryerFlex was lab-tested to 662 degrees Fahrenheit without flame or smoke development. This can offer an extra layer of protection in the event of a dryer malfunction.
                                  • Durability: While both are durable, DryerFlex® construction with multiple layers of aluminum ribbon over galvanized zinc wire resists punctures and tears better than some semi-rigid options.

                                      Our Reccomendations

                                      Semirigid Installed - Connected directly to Dryer (no elbow), runs directly to wall. Not Crushed, No Damages, Good Air Velocity.
                                      Semirigid Installed - Connected to Dryer with an elbow and/or oversized and looped in back. Not Crushed, No Damages, Good Air Velocity.
                                      Semirigid Installed - Connected to Dryer with an elbow and/or oversized and looped in back. Not Crushed, No Damages, Bad Air Velocity.
                                      Semigid Installed - Connected to directly to Dryer (no elbow), runs directly to wall. Vent is Crushed or is Damaged, Good or Bad Air Velocity.
                                      Accordion Style Dryer Transition Vent Installed
                                      Recommend DryerFlex® Upgrade

                                      Click here to read about our DryerFlex® Guarentee