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Insulated Ductwork, Pre-cladded Ductwork, Construction, HVAC Duct, Insulation, Enduraduct

                             - Outdoor Duct System 

EnduraDuct, Patented Insulation and Distributor of Rigid Foam Board Panels


EnduraDuct's patented design is a highly efficient code compliant  insulated outdoor ductwork system. EnduraDuct's KEY feature is that it is real metal duct, with our proprietary Hard Shell insulation applied and ready to be installed.

Engineering Advantages:

  • Provides True SMACNA standard duct; metal of choice  ( Galvanized, Stainless, Aluminum, PVC coated, etc.) 

  • Can be internally lined if necessary 

  • R-12.29 to R-33.29 

  • Low, Medium, and High-Pressure Class 

  • Spooled in 5ft to 17+ft sections; means fewer entry points for water intrusion

  • Can be washed internally and externally

  • Provides extreme rust, chemical, and mold resistance 

  • Follows SMACNA standards and TDC/TDF connections

  • NO unnecessary screws, caulks, or foams are used 

  • NO Excessive Rods, Stiffners, Screws or Penetrations 

  • Easy to Install

  • Insulated even at the connection points 

  • Has the ability to color match ANY roofline 

Duct, Insulated Duct, Precladded Duct, Ductwork, HVAC, HVAC duct, SMACNA Standard, Sheetmetal, Construction

EnduraDuct can be manufactured
and spooled in
5-17 ft  sections 

Cutting Install time in half and creating less opportunities for vulnerable entryways. 

Installation is as easy as 1,2,3 

1. Connect TDC/TDF Connections

2. Install insert kit 

3. Install flashing kit, caulk and screws 

* Battery operated Caulk Gun recommended 

EnduraDuct's Outdoor Ductwork installation process.
EnduraDuct's Outdoor Pre-Cladded Ductwork install process.

Additional Features: 

Insulated ductwork, Damper Handles, HVAC, Ductwork, Insulation

Damper Handles 

Insulated all the way around, and includes a weatherproof coated box to ensure lasting construction. 
Insulated Access Doors, Pre-cladded ductwork, Sheetmetal, SMACNA Standard, Access Door, HVAC Duct

Access Doors 

A fully insulated and crisp presentation; various  metals and sizes available. 


We want to ensure you have the best experience with EnduraDuct. To ensure the inserts fit properly and keep the product water tight, we need to ensure ALL Duct meets these STANDARD requirements. This will make it easier for the install team while keeping the integrity of the product.

EnduraDuct Ductwork Design Standards
EnduraDuct, Rigid Insulation Panels and Insulated Ductwork


Protect against the elements 

- Curb Caps

- Heat Exchangers

- Curb adapters

- Roof Supports

- Roof Drain Caps

- Outdoor Silencers

- and much more!   

 Something else in mind? Contact us 

Insulation, Pre-cladded, Hard Shell, Weather proof, Curb cap, HVAC, Ductwork

EnduraDuct's Coating 

EnduraDuct's coating is unique and provides:

ASTM D2240 Shore D Hardness >= 50ASTM D624

Tear Strength >= 370 pliASTM D412

Tensile Strength >= 2350 psi​ ASTM D412

Elongation >= 320%​ Minimum 40 mils thickness exterior shell Washable, mold and mildew resistant.

Corrosive free properties 

UV Protectant can be ANY color 

Ductwork, Insulated Duct, Precladded Ductwork, HVAC, HVAC Duct


"We are here to make your project work for you ."
HVAC, Ductwork

Proud Distributor of SilveRboard Graphite Insulation

SilverRboard Graphite is available in 1", 2" and 2.75" thicknesses - 4'x 8' Panels 

R Values: R4.4, R8, and R12

Pick up what you need and when you need it today! 

1sheet to 5,000 sheets ; conveniently located in 

Saint Charles, IL ; shipping options also available

Rigid Foam Board Insulation, Insulation Panels, Owens Corning, Graphite Infused Foam Board


-- Exterior above grade walls


-  Component of building recladding

-  Interior below grade foundation wall 

SilverBoard Advantage 

* Stable long term thermal resistance 

* Increased thermal resistance in lower temperatures

* Micro perforated film on both sides provides high vapor     permeance and allows moisture to dry

* AMAZING Flexibility; Double sided film lamination              creates flexible boards which are ideal for radius walls and    turrets 

* Does NOT promote growth of mold or mildew

* No off-gassing and does not contain HFCs, CFCs, or HCFCs

* Each panel is easy to handle due to the low weight and can be easily cut


High R Value!

Specification for Rigid Polystrene Insulation    ASTM C579 Type XI

Thermal Resistance  ASTM C518 @ 75 Degrees F- 4.4 ft. hr/Btu

Water Absorbtion ASTM C272    4.0% 

Water Vapor Permeance ASTM E96  

        SBGXS- 2.74 US Perm ( 157 ng/ Pa.s.m 2)

Flexural Strength ASTM C203  26 psi

Dimensional Stability ASTM D2126  2%

Limiting Oxygen Index  ASTM D2863 > 24%

Density (Min) ASTM D1622 0.7 lb/ft (11kg/m3)

UL 723 

        Flame Spread Index <25 

        Smoke Developed Index <50 

Rigid Foam Board, St Charles, Owens Corning, Below Slab, Insulation Board, RValues, Envirosheet, Closed Cell Expanded Foam, Continious Insulation, Stable and Long Termal Resistance.

"White is the new Pink"

Great R Values, Amazing Price points 

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