Weather Resistant Pre-Insulated Ductwork with Architects in mind

For applications where aesthetics play a key role in building design, we've expanded our ductwork range to offer a high performing solution with architects in mind. HVAC design can plays a large role in the aesthetics of an application, Thermaduct is proud to offer a high quality metal cladded version of our Thermaround product with multiple finishes, including Kynar coated steel or aluminum.

Architectural Round and Spiral Duct Systems for Interior and Exterior


  • R12 Insulated Value
  • Indoor or Outdoor Use
  • 10" Positive, 8" Negative Pressure Class
  • UL 181 Listed InspiralR Interior
  • Kynar Exterior Cladding - Multiple Color Options and finishes
  • High Static Pressure Design
  • Lightweight - Double Wall Duct with Less Weight
  • Gored Elbows - No Need for Turning Vanes
  • Low Air Leakage
  • Simple Connection System for Easy Installation
Pre-Insulated R-12 Duct System
Exterior Pre-Insulated Duct Systems Thermaround

Thermaround Metal Clad provides a protected R-12 insulated value by combining a dual layer of our UL 181 Listed InspiralR phenolic ductwork in a shape that naturally sheds water. The versatility and color options offer a seamless integration with your building's overall design to provide a stunning, yet highly protective solution without compromising performance.

Many Color options to match your application

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Thermaduct Metal Clad finish colors may vary from digital representations shown

Round KoolDuct Thermaround Ductwork with Metal Cladding

Pre-Insulated Thermaround Metal Clad Ductwork


Thermaround Metal Clad differs from our vinyl cladding Thermaround. This suite of finishes covers two layers of our InspiralR system and can be fabricated with multiple material options to meet the needs of any application. These include:

  • Kynar Finished Steel or Aluminum - PVDF (polyvinylidene fluoride) coated steel or aluminum with 24 color options
  • Galvanized Steel - Galvanized Steel Layer
  • Paintgrip Steel - Paintable Metal Layer for Additional Color Options

The Kynar finished metals are resistant to many weathering elements and excellent options for outdoor applications.

Find the perfect finish for your application:

Download our Color Options Sheet

*Lead Times May Apply

See Thermaround Metal Clad In Action

Insulated lined outdoor ductwork
R-12 Insulated Ductwork
Closed Cell Phenolic Ductwork
Thermaround Metal Cladding
Round preinsulated ductwork
Architectural HVAC Duct System
Colorful Ductwork
Thermaround architectural duct system for spiral applications
R12 Ductwork with InspiralR Interior
Ductwork for Architectural Applications
Pre-Insulated Spiral Duct Systems - Thermaround

Thermaround Outdoor Ductwork - Vinyl Cladding or Metal Cladding

Pair Easily with Vinyl Cladded Thermaround or Thermaduct

Color match your building facade and connect to our vinyl cladded Thermaduct and Thermaround to provide a factory laminated surface with the highest level of protection from water intrusion. Thermaround Metal Clad is designed to give you aesthetic options for your ductwork while still able to pair to our high quality exterior ductwork solutions.

Install easily with connections that can provide near zero air leakage. Just like our patented Thermaround system, Thermaround Metal Clad requires installing contractors to apply sealant, connect sections together with an offset coupling and use a draw band connection for fast and easy installation.

Our goal is to give you more options to truly make your outdoor application as weather resistant as possible!

Near Zero Air Leakage

Energy Efficient Air Distribution Perfect for Interior and Exterior Applications

Preinsulated System

Thermaround Metal Clad provides an R12 insulated value without the need for additional duct insulation

Ease of Installation

Thermaround Metal Clad is lightweight with a fast connection system allow you to install more outdoor duct per day

10 Year Limited Warranty

Thermaround Metal Clad is backed by a 10 year limited warranty

Designed Ductwork Solutions to meet the aesthetics and performance demands of your application

Thermaround uses a smooth aluminum Kingspan KoolDuct interior for a high quality, fiber free insulation that is protected by our Kynar finished metal cladding system. This system can be installed internally and externally in a variety of applications.

Hospitals and Healthcare Environments

Schools and Universities

Hotels and Multifamily Structures

Commercial and Industrial Applications

Pools and Natatoriums

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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:

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