Hormann dd decotherm steel insulated roller shutter doors

Hörmann Decotherm DD Direct Drive Insulated Industrial Roller Shutter

The Hörmann Decotherm DD represents a masterpiece of German engineering, combining exceptional thermal performance with cutting-edge direct drive motor technology. This premium insulated industrial roller shutter door is designed for demanding commercial and industrial applications where thermal efficiency, reliability and advanced automation are paramount.

Unlike conventional single-skin steel roller doors, the Decotherm DD features a unique double-skinned lath profile with PU rigid foam infill, delivering genuine thermal insulation with a heat transmission performance of 3.9 W/m²K. The innovative lath geometry with a minimal thermal bridge represents one of the most thermally efficient roller shutter designs available, significantly reducing energy loss through the door opening.

Direct Drive Motor Technology – The Future of Industrial Doors

The Hörmann direct drive system represents the next generation of industrial door automation, offering significant advantages over traditional chain or tube motor configurations. With fewer moving parts, reduced maintenance requirements and considerably more power, the direct drive motor enables variable speed control, soft start/stop functions and higher daily usage performance ratings.

Key Direct Drive Advantages

• Powerful Operation: High-performance direct drive operator with absolute encoder (AWG) for precise, reliable door movement
• Integrated Safety: Position-independent catch safety device prevents the door curtain from falling, even in the event of spring or drive failure
• Variable Fitting: The motor fitting position can be freely selected during installation (horizontal or downward alignment), with no operator technology visible beneath the barrel in horizontal configuration
• Reduced Maintenance: Fewer moving components and wear parts extend service life and reduce ongoing maintenance costs
• Higher Duty Rating: Suitable for intensive-use applications with frequent daily cycles

Optional S6 High-Speed Package

For applications requiring rapid door operation to minimise heat loss and optimise traffic flow, the optional S6 performance package transforms the Decotherm DD into a high-speed door solution. With opening speeds of up to 1.1 metres per second, this package delivers performance approaching that of traditional fabric high-speed doors, but with the superior strength, security and thermal insulation of a steel roller shutter.

The S6 package includes a powerful single-phase frequency converter operator with soft start and soft stop functions, light grilles for enhanced safety in the closing zone, and L-pads on the inside of the curtain to minimise noise and wear. If you are considering a fabric high-speed door for your building, the Decotherm DD with S6 package may offer a more robust, thermally efficient and cost-effective alternative with additional security benefits.

Exceptional Thermal Performance

The Decotherm S lath profile is one of the thickest and most thermally advanced roller shutter laths in its class. The double-skinned steel construction with PU rigid foam infill and optimised geometry create a highly effective thermal barrier, ideal for temperature-controlled environments such as cold stores, food processing facilities, warehouses and manufacturing plants.

The curved outer and inner surfaces ensure excellent winding behaviour and a compact roll diameter, minimising required headroom while maximising thermal efficiency. The lined profile is available with high-quality colour coating to suit any building aesthetic, with the coating applied to both interior and exterior faces.

Compact Design and Minimal Space Requirements

Despite its robust construction and large size capability, the Decotherm DD features remarkably compact fitting dimensions. The narrow aluminium side guides require only 80 mm of sideroom for all door sizes, while the compact support brackets need a maximum of just 180 mm (bearing side) or 280 mm (operator side), even on large door dimensions.

The standard guide channel features polyamide sliding surfaces to reduce wear on the door curtain and ensure smooth, quiet operation. The metal holder can be replaced very easily for inspection and maintenance, supporting long-term serviceability.

Hörmann Quality, Safety and Compliance

Hörmann are globally renowned for their commitment to safety, quality and regulatory compliance. The Decotherm DD roller shutter door exceeds all relevant European standards, including EN 13241-1 for powered industrial doors, ensuring safe operation during all opening and closing phases.

Every door is manufactured in highly specialised German factories using state-of-the-art production technologies and undergoes rigorous testing and quality control. As a made-to-measure roller door suitable for a massive variety of applications, this is a door where quality truly matters and reliability is guaranteed.

Easy Installation and Fitter-Friendly Design

All Decotherm DD components are supplied ready to fit, with no adjustments required on site. The side guides are easily aligned and fitted using a metre line marking system, while the curtain, winding shaft and support brackets are pre-assembled as a complete unit and positioned using support bracket templates. Markings on the side guides enable quick setting of the top end-of-travel position, significantly reducing installation time and costs.

Advanced Access Control and Automation

The Decotherm DD is compatible with Hörmann's comprehensive range of controls, safety equipment and access systems. From simple push-button operation to sophisticated traffic control, photocell systems, induction loops, transponder access and remote control via the Hörmann BlueSecur app, the door can be configured to suit any application or environment.

Key Performance Data

• Maximum Width: Up to 12000 mm (single door), up to 36000 mm (combination SSG DD with mobile centre supports)
• Maximum Height: Up to 9000 mm
• Curtain: Decotherm S double-skinned galvanised steel with PU foam infill
• Thermal Performance: Individual door section U-value 3.9 W/m²K
• Wind Load Class: Up to Class 4 (with performance package W4)
• Side Room Required: Only 80 mm for side guides
• Motor: High-performance direct drive with absolute encoder (AWG)
• Optional S6 Speed: Up to 1.1 m/s opening speed
• Finish: Galvanised steel as standard; powder coating to RAL colours or high-quality coil-coated finish available
• Made to Measure: Every door custom-manufactured for perfect fit

Application Suitability

The Hörmann Decotherm DD is ideal for:

• Warehouses and distribution centres requiring thermal efficiency
• Manufacturing and production facilities with frequent door usage
• Loading bays and goods-in/out areas
• Cold stores and temperature-controlled environments
• Food processing and pharmaceutical facilities
• Logistics operations requiring high-speed access with thermal protection
• Any application where thermal performance, security and reliability are essential

Ideal Applications for the Hörmann Decotherm DD

The Hörmann Decotherm DD represents a premium investment in industrial door technology, and is best suited to applications where thermal efficiency, reliability and intensive daily use are critical business requirements. This is not simply a standard roller shutter – it's a high-performance engineered solution for demanding UK commercial and industrial environments.

Temperature-Controlled Environments

The Decotherm DD excels in applications requiring thermal separation and energy efficiency. Cold stores, chilled distribution centres, food processing facilities and pharmaceutical manufacturing plants all benefit significantly from the door's exceptional U-value of 3.9 W/m²K. The insulated double-skinned lath with PU foam infill creates a genuine thermal barrier that dramatically reduces energy loss compared to single-skin steel doors, delivering measurable cost savings on heating and refrigeration throughout the year.

High-Traffic Logistics and Distribution

For busy loading bays, goods-in/out areas and distribution hubs where the door operates multiple times per hour, the Decotherm DD's direct drive motor technology delivers the robust performance and longevity required. The optional S6 high-speed package (opening at up to 1.1 m/s) further optimises traffic flow and minimises heat loss during frequent door cycles, making it ideal for 24/7 logistics operations where every second of door opening represents energy wastage and operational inefficiency.

Manufacturing and Production Facilities

Industrial manufacturing environments benefit from the Decotherm DD's combination of thermal performance, durability and low maintenance requirements. The direct drive system with fewer moving parts reduces downtime, while the robust steel construction withstands the demands of fork-lift traffic and heavy industrial use. The door's ability to span openings up to 12m wide makes it suitable for large production halls and assembly facilities requiring unobstructed access for oversized machinery and materials.

Where Quality and Reliability are Non-Negotiable

This door is the right choice for businesses where door failure is simply not an option – critical infrastructure, pharmaceutical facilities, data centres with temperature control requirements, or any operation where unplanned downtime carries significant financial or operational consequences. The German-engineered quality, comprehensive safety systems and Hörmann's reputation for reliability make the Decotherm DD a sound long-term investment for mission-critical applications.

Energy Efficiency and Sustainability Goals

UK businesses facing rising energy costs and increasingly stringent environmental targets will find the Decotherm DD delivers measurable improvements in building thermal performance. The door contributes positively to BREEAM assessments, helps reduce carbon emissions, and can typically deliver return on investment through energy savings within 3-5 years in high-use applications. For organisations committed to net-zero targets, the door is available as a CO₂-neutral product through Hörmann's sustainability programme.

When to Consider Alternative Options

The Decotherm DD represents a premium investment and may be over-specified for low-frequency applications, unheated buildings or where thermal performance is not a priority. For occasional-use agricultural buildings, basic warehouse security or non-temperature-controlled environments, a standard single-skin steel roller shutter may offer a more cost-effective solution. However, where energy efficiency, intensive use and long-term reliability are important, the Decotherm DD delivers exceptional value over its operational lifetime.

Hörmann Decotherm DD Direct Drive Specification

Product Overview

The Hörmann Decotherm DD is a premium insulated industrial roller shutter featuring a high-performance direct drive operator with absolute encoder (AWG). Manufactured in Germany to the highest quality standards, this door combines exceptional thermal efficiency with advanced automation technology, making it ideal for demanding commercial and industrial applications where energy efficiency and reliable operation are essential.

Curtain Construction – Decotherm S

Material: Double-skinned galvanised steel lath with PU rigid foam infill
Profile Height: Nominal profile depth optimised for winding with curved outer and inner surfaces
Weight: Approximately 10.3 kg/m²
Finish: Lined profile view on interior and exterior, optionally with high-quality coil-coated colour finish

Thermal Performance

• Individual Lath Section U-value: 3.9 W/(m²·K)
• Complete Door (4m x 4m): 4.1 W/(m²·K) when fitted
• Acoustic Rating: Rw = 18 dB (for 3.5m x 2m door when fitted)

Technical Performance Data

Maximum Door Sizes

• Maximum Width: Up to 12000 mm (single door)
• Maximum Height: Up to 9000 mm
• Combination Doors (SSG DD): Up to 36000 mm wide with mobile centre supports

Wind Resistance

• Wind Load Class 2: Standard up to 12000 mm door width
• Wind Load Class 4: Available with performance package W4 up to 12000 mm door width
• Higher Wind Loads: Available on request
• Wind Locks: Fitted as standard to prevent curtain push-out

Water Tightness

• Rating: Class 0 (EN 12425)
• Note: All-round seals on 4 sides as standard

Space Requirements

Compact Design

• Side Guide Width: Only 80 mm sideroom required for all door sizes
• Support Brackets: Maximum 180 mm (bearing side) or 280 mm (operator side)
• Headroom: Varies depending on door height and roll diameter – see technical manual for specific dimensions
• S6 Package: Only 100 mm additional headroom required compared to standard version

Finish and Colour Options

Standard Finish

• Galvanised Steel: Hot-dipped zinc coating as standard for superior corrosion protection

Optional Colour Coating (High-Quality Coil-Coated)

• RAL 9002 Grey White: Optional
• RAL 9006 White Aluminium: Optional
• Custom RAL Colours: Available to order in any standard RAL colour
• Coating Benefits: Long-term protection against adverse weather effects, additional polyamide protective paint reduces abrasion and noise

Note: All curtain laths feature high-quality coil coating applied in the factory. The bottom profile is bright-rolled as standard.

Vision and Ventilation Options

Window Profiles (Optional)

• Standard Arrangement: Synthetic double pane, clear glazing (150 x 55 mm)
• Logistics Arrangement: Alternative vision configuration for warehouse applications
• Ventilation Grilles: 27 cm² ventilation cross-section per grille (150 x 55 mm)
• Ventilation Openings: 57 cm² ventilation cross-section per opening (150 x 55 mm)

Note: Window profiles and ventilation laths reduce the resistance to wind load and should be specified accordingly.

Motor and Control System

Direct Drive Operator (Standard)

• Type: High-performance direct drive with absolute encoder (AWG)
• Alignment Options: Horizontal or downward mounting – variable position can be selected during installation
• Safety Device: Integrated position-independent catch safety device prevents curtain from falling
• Controls Compatible: Hörmann control 360, 445 R, 460 R and frequency converter control B 971 R (S6 package)

Optional S6 High-Speed Package

• Opening Speed: Up to 1.1 m/s (almost as fast as fabric high-speed doors)
• Motor: Powerful single-phase FU operator 220-230V, 50-60Hz with soft start and soft stop
• Duty Cycle: Up to 30 door cycles per hour or 300 per day
• Safety: Light grilles in side guides safeguard the door area up to 2500 mm height
• Noise Reduction: L-pads on inside of curtain minimise noise and wear
• Service Life: 200,000 door cycles (Open/Close) with regular maintenance

Security and Safety Features

Standard Security Equipment

• Pull-Out Protection: Wind locks prevent curtain from being pushed out of guides
• Finger Trap Protection: Fitted as standard
• Safety Catch: Prevents uncontrolled falling of curtain
• All-Round Seals: EPDM seals on all 4 sides for weather protection

Optional Security Equipment

• Internal Locking: Lockable bottom profile with profile cylinder (interior access only)
• Internal/External Locking: Lockable from both sides
• Side Trap Guards: Optional robust covers for additional safety
• Automatic Locking ETV-1: Automatic bolt locks door in closed position

Optional Break-In Resistance

• RC2 Certification: Available with WK2 rating to DIN V ENV 1627:1999 (on specific curtain variants)

Side Door Option

Pedestrian side door NT 60 R available as an option, manufactured with 60 mm anodised E6/C-0 aluminium frame construction to match the door system. Features all-round EPDM seals, three-way adjustable hinges, and optional synthetic glazing for vision. Available with lever handle set as standard.

Installation and Fastening Options

Suitable for All Building Types

• Concrete: Standard fixing method with anchors
• Steel: Welding or bolt fixings to steel framework
• Brickwork: Anchor fixings to masonry
• Timber: Suitable for timber frame construction
• Optional Steel Bracket Fastening: Allows fitting to insulated building openings or steel construction

Compliance and Certification

• European Standard: Conforms to EN 13241-1 for powered industrial doors
• Safety: All safety regulations met for safe operation during all phases
• CE Marked: Full compliance with European directives
• Made in Germany: Manufactured in ISO 9001 certified facilities
• Environmental: Available as CO₂-neutral product upon customer request through Hörmann's sustainability programme

Summary Key Features

✓ Double-skinned insulated steel curtain with PU foam infill
✓ High-performance direct drive motor with absolute encoder
✓ Exceptional thermal performance (U-value 3.9 W/m²K)
✓ Wind load class 2 standard, class 4 available
✓ Doors up to 12m wide x 9m high (36m wide with combinations)
✓ Only 80mm sideroom required
✓ Optional S6 high-speed package (up to 1.1 m/s)
✓ Easy installation with fitter-friendly design
✓ Made to measure as standard
✓ 10-year spare parts availability guarantee

Measuring and Survey Requirements for Hörmann Decotherm DD

Professional Survey Essential

The Hörmann Decotherm DD is a precision-engineered industrial door system that requires professional surveying and installation to ensure optimal performance, safety and compliance with UK regulations. Due to the complexity of the direct drive motor system, thermal performance requirements, and the critical nature of correct installation, we strongly recommend a full site survey is carried out by a qualified Hörmann specialist before ordering.

A professional survey will identify any potential installation challenges, confirm structural suitability, establish exact dimensions, and ensure the correct specification is selected for your specific application and building type.

General Measuring Principles

Standard Internal Face Fitting (Most Common)

When measuring for any roller shutter door, there is a general assumption that the door will be fitted to the inside face of the structural opening. This is certainly the case in most installations, as it maximises the available width and height while positioning the guides and curtain roll out of the way of the actual aperture and protected from external elements.

For internal face fitting, the key dimensions to establish are:

• Aperture Width: The clear structural opening width
• Aperture Height: The clear structural opening height from finished floor level to underside of lintel
• Reveal Depth (Internal Return): The depth available on both sides and at the top for fixing the side guides and support brackets
• Headroom: The vertical space available above the lintel for the rolled curtain and endplates when the door is fully open
• Sideroom: The horizontal space available on each side of the opening for the side guides (minimum 80mm for Decotherm DD)

Alternative Fitting Methods

External Face Fitting

The Hörmann Decotherm DD can also be fitted to the outside face of the building opening, typically with an optional hood cover to protect the rolled curtain and operator from weather exposure. This method may be specified where internal headroom or sideroom is restricted, or where the building design requires external mounting.

Reveal Fitting (Between the Opening)

In situations where headroom above the lintel is severely limited, or where a flush finish is required, the door can be installed between the aperture (reveal fit). This versatile fitting option is one of the key advantages of roller shutter door systems, though it may require additional structural work or sub-framing depending on the building construction.

Critical Dimensions and Considerations

Headroom Requirements

The required headroom varies significantly depending on the door height, curtain type, and whether the S6 high-speed package is specified. The Decotherm DD features a relatively compact roll diameter thanks to the optimised winding geometry, but sufficient space must be available for:

• The rolled curtain when fully open
• The support brackets and endplates
• The direct drive motor assembly (variable position)
• Optional curtain and operator covers
• Safe clearance for operation and maintenance

Structural Loading and Support

The Decotherm DD, particularly in larger sizes, represents a significant structural load. The building structure must be capable of supporting the weight of the door assembly, motor, and dynamic operating forces. Professional assessment is essential to confirm:

• Adequate load-bearing capacity of walls, lintels and fixings
• Suitability of fixing substrate (concrete, steel, brickwork, timber)
• Any additional steelwork or reinforcement requirements
• Floor construction suitability for bottom guide and seal fixings

Electrical and Control Requirements

A professional survey will also establish the electrical supply requirements and optimal control panel locations. The direct drive operator typically requires:

• Suitable 230V or 400V power supply (depending on motor specification)
• Compliant cable routing and containment
• Location for control panel and command units at accessible operating height
• Integration with any building management or fire alarm systems
• Safety device positioning (photocells, light grilles, warning lights)

Wind Loading and Environmental Assessment

For external installations or exposed locations, wind loading calculations must be performed to ensure the door specification meets the required performance standards. The Decotherm DD is available in wind load classes up to Class 4, but the specific site conditions, building height, exposure and local wind data must be professionally assessed.

Why Professional Installation is Essential

Compliance and Certification

Under UK regulations, powered industrial doors must be installed by competent persons who can issue the required Declaration of Conformity and apply CE/UKCA marking to confirm the complete installation meets the Machinery Directive and relevant safety standards. Hörmann trained installers are fully qualified to fulfill these legal requirements.

Warranty and Support

Professional installation by an authorized Hörmann installer ensures your warranty remains valid and you have access to ongoing technical support, maintenance services and genuine spare parts with guaranteed 10-year availability.

Safety and Performance

Correct installation is critical for safe operation, optimal performance and long service life. The direct drive motor system, safety devices, limit settings and control parameters must all be precisely configured and tested to ensure the door operates safely and reliably from day one.

Arrange Your Professional Survey

To arrange a no-obligation site survey for your Hörmann Decotherm DD roller shutter, please contact Samson Doors:

Phone: 01933 448 850
Email: enquiries@samsondoors.co.uk

Our experienced technical team will visit your site, take accurate measurements, assess the installation requirements and provide a detailed quotation including supply, professional installation and commissioning of your Hörmann door system.

When measuring for ANY roller shutter door there is an assumption the door will be fitted to the inside face of the structural opening, which is certainly the case in most installatons for maximising width and height, placing the guides and the curtain roll out of the way of the actual aperture. 

The width and height of the aperture is the measurement to focus on and then add in the width and height of the inside return and the headroom above the lintel available.

A roller shutter door can be fitted to the inside face as well as the outside face (with a hood cover) but also inbetween the aperture if there isnt any available headroom or sideroom. It is one of the most verstile types of door available in this respect,