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The Advantages of Using InspiralR and Floval For Your Application

InspiralR and Floval are pre-insulated, high efficiency spiral and flat oval duct systems that give you increased thermal performance of round ductwork. These patent pending systems provide thermally efficient and low leakage ductwork packaged in an extremely lightweight and high quality closed cell phenolic insulation. There's no need to insulate separately as all InspiralR and Floval Ductwork reach a minimum of R-6 insulated value!

round pre-insulated ductwork
Insulated Spiral Ductwork System InspiralR
Thermaduct InspiralR factory spiral duct

R-6 Installed Insulated Values

All InspiralR and Floval ductwork come pre-assembled and ready to install at an R-6 insulated value. These systems are UL 181 rated for 10" positive and 8" negative pressures.

The aluminum Kingspan KoolDuct interior provides an interior free of loose fibers that will not support mold growth. InspiralR and Floval are designed to provide customers with extremely low air leakage. Increase your customer's HVAC system efficiency and reduce long term energy costs.

Included Connection Materials

No need to pay extra to install your ductwork, as InspiralR and Floval come with pre-installed couplings and connection materials to install a near airtight connection.

For low pressure systems, this includes sealant, tiger clips and UL 181 approved tape. For high pressure systems, sealant, UL181 approved tape and drawbands are included.

Lightweight Double Wall Spiral Ductwork InspiralR

Lightweight Ductwork

InspiralR and Floval can weigh a fraction of traditional double wall spiral or flat oval ductwork. This can significantly lower the impact ductwork will have on a building and reduce weight hanging above building occupant's heads.

Easy Installation

InspiralR and Floval go together quickly and will be familiar to HVAC contractors. Have a virtually airtight connection in around 3 minutes!

Space Saving

InspiralR and Floval's connection drawbands second as a hanging point for this lightweight ductwork. Tight on ceiling space? Floval is your solution for areas where applications may not allow enough space to wrap ductwork.

10 Year Limited Warranty

InspiralR and Floval are built to last and are proudly backed by a 10 year limited warranty.

Find Out More

Connect with a Thermaduct Representative or Contact Us to learn how Thermaduct can provide high efficiency air distribution for your next application.