Sectional overhead doors

Quality doors supplied and fitted across the UK by Alliance Industrial Doors Ltd of Dudley

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industrial doors
sectional doors

The benefits of sectional overhead doors

At Alliance Industrial Doors Ltd, we manufacture overhead sectional doors that are designed to precisely meet the requirements of your application. Overhead doors are ideal if your application requires high levels of thermal performance as well as noise reducing properties. These doors are commonly used in factories and warehouses, where their rigid construction makes them a reliable option in high-usage applications. The benefits of sectional overhead doors include:

  • Excellent thermal properties

  • Fully galvanised construction that provides high levels of weather-proofing and durability

  • Manual, mechanical and powered versions available

  • Aesthetically pleasing appearance

  • Easy to operate

 

Sectional doors also look visually appealing and can be finished to complement the look of your premises. Windows can also be added to increase visibility and improve safety when opening. To find out more, please get in touch.

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Standard lift track

SIDEROOM REQUIREMENTS:
Push up doors (up to 3000 x 3000) 150 x 150m
Chain hoist doors 350 x 150mm
Electrically operated doors 400 x 150mm


PLEASE NOTE: All fixing faces (shown hatched) must be flush and in the same plane.

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High lift track

SIDEROOM REQUIREMENTS:
Push up doors (up to 3000 x 3000) 150 x 150m
Chain hoist doors 350 x 150mm
Electrically operated doors 400 x 150mm


PLEASE NOTE: All fixing faces (shown hatched) must be flush and in the same plane.

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Vertical lift track

SIDEROOM REQUIREMENTS:
Push up doors (up to 3000 x 3000) 150 x 150m
Chain hoist doors 350 x 150mm
Electrically operated doors 400 x 150mm


PLEASE NOTE: All fixing faces (shown hatched) must be flush and in the same plane.

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Low headroom lift track

SIDEROOM REQUIREMENTS:
Maximum Dimensions: 5000 x 5000mm
Maximum Weight: 300kg


PLEASE NOTE: All fixing faces (shown hatched) must be flush and in the same plane.

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Insulated sectional overhead doors

Installing insulated sectional overhead doors guarantees high thermal performance, avoiding the cold bridging that can occur with traditional roller shutters. Our insulated sectional overhead door panels offer greater thermal performance than required under building regulations.

  • Windows can be installed in single or multiple panels

  • Panels can be prefinished in an extensive range of colours and materials

  • Doors that have been accidentally damaged can be repaired easily using replacement materials and components​

 

COMPOSITION
We use top quality materials and precise manufacturing controls to ensure long that all our doors have a long service life in normal industrial and commercial applications. All our insulated door panels comply with the relevant building regulations requirements for industrial doors, and the durability of finishes are those specified by our steel suppliers technical specifications department.

 

Outer and inner sheet: 0.5mm hot dipped galvanised steel. Both inner and outer sheets are supplied “V” grooved to provide increased lateral strength, and the whole panel is made-up to form a T+G joint top and bottom.

Core: 39mm thick rigid polyurethane foam, density 40kg/m³.

Seal: Low density compressible foam at panel base, and PVC Tape to the panel nose, all factory applied.
 

THERMAL PERFORMANCE

Our sectional door panels provide high levels of insulation. The foam core between the inner and outer steel sheets of the door panel interrupts cold bridging effectively, preventing transmission of heat in either direction.


COLOURS AND FINISHES

Outer skin: The outer skin is finished and coloured to match most contemporary building cladding.
Inner skin: The internal liner skin is finished in RAL 9010 white, polyester coated, stucco embossed galvanised steel as standard. A separate list and sample swatch of the current colour range is available from our customer services department.

 

THERMAL BOW

It should be noted that when a door is likely to receive direct sunlight then dark colours should be avoided due to the potential of thermal bow. Contact our technical department for further information.
 

ACOUSTICS

The 40mm insulated door panel gives sound reduction of (Rw) 25db. Please note: this is for the panel only, and does not include joints, i.e. a fully installed door.
 

PANEL OPTIONS AND ACCESSORIES
Windows of various sizes can be incorporated in the panel, the standard being 600 x 300mm with radiused corners.
Each panel is fitted with pre-punched galvanised steel end caps and the top and bottom panels are finished with an aluminium retainer to hold the EPDM seals.
A range of locking options are available.
Wicket doors are available, 900 x 2100mm approx. low threshold profile supplied complete with sash lock or push bar.

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Tracks

  • Individually designed for each door

  • Fully galvanised

  • Bolted and riveted or spot welded

  • Standard lift, high lift, vertical lift and low headroom track configurations available. Follow the roof and pitched tracks available.

  • All tracks supplied with 3m lengths of punched installation angle and side seals

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Springs

  • Individually designed for each door

  • Highest grade springs, manufactured to EN10270 Class SH specification for longer life

  • Fully keyed shaft with adjustable coupler as required

  • Spring break device supplied as standard

  • Drums, end bearing plates, centre bearing plates, PVC spring fillers (152mm diameter springs and duplex assemblies), plugs and winders, securing bolts

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Hardware

  • All components galvanised for weather protection

  • Doors supplied with adjustable side hinges, intermediate hinges, nylon rollers, cable sets, bottom corner brackets, spring bumpers, self-tapping panel fixings

NOTE: We do not supply fixings for use between the door and the structure as standard but can on request.

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Operation

  • Manual doors can be push-up (up to 3000 x 3000mm) or chain hoist driven

  • Electric 3ph or 1ph operators available complete with starter and torque bracket

  • A range of safety systems available. Cable break and spring break devices are supplied as standard

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Other products

  • Panoramic aluminium sectional overhead doors

  • Aluminium, fully single or double glazed sectional overhead doors

  • Anodised and paint finishes available

  • Glazed and solid panel combinations

Contact our technical department for product literature

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Contact Us

For overhead sectional doors, choose Alliance Industrial Doors Ltd of Dudley. Contact us today.