Key Specifications
Thermal
Efficiency
Twin-skin insulated laths reduce heat loss & lower energy bills.
Acoustic
Insulation
Foam-filled laths dampen external sound for quieter premises.
Custom Powder Finish
Durable finish powder-coated in any standard RAL or BS colour.
Weather-Sealed Protection
Heavy-duty perimeter rubber seals block draughts & rain.
Twin-Skin Polyurethane Insulated Laths
The insulated curtain features double-skin profile laths roll-formed from pre-coloured steel with a hot-injected polyurethane core. This design drastically reduces building heat loss, making it ideal for climate-controlled warehouses, workshops, and commercial bays.
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Proven Thermal Performance: Insulated profiles achieve an assessed thermal U-value down to 1.37 W/m²K, helping you comply with UK Building Regulations Part L and lower heating bills.
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Acoustic Sound Insulation: The dense foam core dampens operational noise and external sound pollution, creating a quieter indoor environment.
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Class 5 Wind Resistance: Certified to withstand Class 5 wind loading (up to 7,000 mm clear opening widths), protecting your building against harsh UK weather.
Direct Drive Operators &
Perimeter Weather Seals
To prevent draughts and temperature fluctuations, every insulated shutter is paired with commercial-grade drives and heavy-duty weather seals.
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Pre-Wired Direct Drive Motors: Supplied as standard with a 3-phase Safe Drive direct operator package, built-in anti-fallback safety device, and low-level manual haul chain override for power cuts.
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Internal & External Brush Seals: Guide channels feature 3mm roll-formed galvanised steel fitted with internal and external neoprene brush seals to eliminate air leakage.
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Draught-Proof Base Seal: A reinforced carrier strap connects a 20mm deep rubber base seal to the bottom rail to stop wind, rain, and debris from entering under the door.
UKCA/CE Certified Safety &
Finish Upgrades
All insulated doors installed by Behind Closed Doors Ltd meet full UKCA and CE safety regulations, satisfying workplace Health & Safety Executive (HSE) standards.
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Built-in Safety Devices: Fitted as standard with an internal safety brake and optional auto-time return, safety edge sensors, or floor loop detectors.
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Heavy-Duty Wind Locks: Doors over 5,500mm wide come standard with reinforced wind-lock guide tracks and anchors to maintain structural integrity under high wind pressure.
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Custom Finishes: Zinc protective coating applied prior to a wide selection of standard Plastisol, RAL, or BS polyester powder-coated finishes to match your corporate branding.
Expert Survey, Fitting & Maintenance
Behind Closed Doors Ltd delivers a full turn-key fitting service across Oxfordshire and surrounding areas, ensuring your door performs at peak efficiency.
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Precision Site Assessments: We measure your door openings, check structural fixings, and recommend the correct motor specification.
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Professional Fitting: Installed by fully trained engineers so the door runs smoothly and square in the guide channels without draught gaps.
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Servicing & Emergency Repairs: Ongoing planned maintenance (PPM) packages and rapid response emergency call-outs keep your business secure.
