InspiralR & Floval: Indoor Pre-Insulated Round and Flat Oval Solutions
Give your round and flat oval ductwork the increased performance with Thermaduct’s Inspiral R and Floval Duct Systems. These patent pending systems provide the increased air distribution efficiency of round or flat oval ductwork packaged in a light weight and high quality closed cell phenolic insulation. There’s no need to insulate separately as all ductwork reaches an R-6 insulated value.
InspiralR & Floval Preinsulated Spiral & Flat Oval
- Patent Pending
- UL 181 Listed
- Kingspan KoolDuct Aluminum Interior
- Incredible Fire and Smoke Performance
- Lightweight - Up to 70% Lighter than Metal
- Passes the UL 181 Mold Growth Test
- Pre-insulated R6 Ductwork
- Low Air Leakage
- Simple Connection System for Easy Installation
- Lining options available for special applications
Compare InspiralR to Doublewall Metal Ductwork to See if Your Current Duct Might Be Weighing You Down
Lightweight and easy to install, InspiralR and Floval can drastically reduce the weight of installed spiral and flat oval by up to 75%. Because it is pre-insulated, there is no need to insulate separately.
With less weight hanging above heads, engineers and building owners can rest easy as their installation safety concerns can be addressed with InspiralR and Floval.
InspiralR and Floval fittings arrive pre-fabricated with included coupling and connection materials. Even with all this included, we still are able to offer significant weight savings when compared to traditional metal ductwork.
Paintable Exterior Surface
For exposed applications, InspiralR and Floval have an exterior surface that can easily accept water based paints without the need of any special treatments. With the lower leakage rates, this can prevent dust accumulation from having streaks caused by air leaking out of traditional ductwork. The only difference you'll notice is with your utility bills!
Near Zero Air Leakage
Energy Efficient Air Distribution
InspiralR and Floval will provide an R-6 Installed value
Ease of Installation
With less weight, you can install more duct per day.
10 Year Limited Warranty
Thermaduct's InspiralR and Floval are backed by a 10 year limited warranty
Installing Pre-Insulated Round and Flat Oval
We designed our round and flat oval duct systems to be familiar to contractors. Time spent in the field comes at a cost and you will find that InspiralR and Floval connect easily.
Installing contractors will find it only takes about 3 minutes per connection for a virtually airtight seal.
InspiralR Round Phenolic Ductwork
InspiralR Pre-Insulated Ductwork
Round Phenolic Ductwork
InspiralR Lightweight Spiral Ductwork
Lightweight Duct System
Thermaduct InspiralR Doublewall Alternative
InspiralR Round Duct System
Installing InspiralR Pre-Insulated Round Duct
InspiralR Pre-Insulated Double Wall Spiral Alternative
Flat Oval Insulated Duct
Pre-Insulated Flat Oval Double Wall Duct
InspiralR Foodgrade Phenolic Spiral Ductwork
InspiralR foodgrade pre-insulated spiral duct installation
InspiralR Food Grade Double Wall Spiral Duct
Manufactured Double Wall InspiralR Industrial System
InspiralR Preinsulated Spiral Industrial Ductwork
Floval double wall flat oval ductwork
Thermaduct InspiralR Double Wall Spiral Ductwork
See Thermaduct's InspiralR & Floval in Action
Download the latest literature in PDF Format
InspiralR and Floval Pre-Insulated Phenolic Ductwork
Both our round and flat oval systems use an aluminum Kingspan KoolDuct interior for a high quality, fiber free insulation. Because of this, InspiralR and Floval are great for almost any indoor application.
Hospitals and Healthcare Environments
Schools and Universities
Hotels and Multifamily Structures
Commercial and Industrial Applications
Pools and Natatoriums
Find Your Local Thermaduct Representative
Thermaduct products are sold through a network of manufacturer's representatives. Find our local team member in your area below for Thermaduct product pricing: