Duplex SP 120 Single Door 2hr Fire Rated Both Sides

• 120-minute Duplex fire rated (bi-directional to BS476 Pt 22)
• Smoke Test Compliant (6x better than standard)
• 36dB sound reduction (BS EN ISO 10140-2)
• Insulated to 0.55 U-Value
• Beaded or Picture Frame options
• Fitted with Spring Pin hinges
• 75mm deep panel (depth into the opening)
• Part B & Part J Compliant

The DUPLEX-SP-120 is our premier single-leaf, bespoke Riser Door system, providing certified 120-minute fire integrity (tested in blockwork and stud & track) combined with best-in-class acoustic, thermal, and smoke control performance.

Certified Fire & Compliance Data:

• Fire Rating: Test certified for 120 minutes of bi-directional fire integrity (inwards and outwards), tested to BS 476: Part 22.
• Building Regulations: Fully compliant with Building Regulations Part J (Heat-producing appliances) and Part B (Fire Safety).

Specialised Performance Ratings:

• Smoke Control: Tested compliant to BS EN 1634-3:2004, achieving an air leakage rate of only 0.4/m³/m/h - significantly exceeding current standard requirements.
• Acoustic Rating: Certified to provide 36dB sound reduction, tested as per standard BS EN ISO 10140-2, ideal for noise-sensitive riser shafts.
• Thermal Performance: Features specialised insulation to achieve a low U-Value of 0.55 W/²/K.

Design & Availability:

• Sizing: Available as a single-leaf bespoke system, with a maximum tested size of 2300 x 1025mm.
• Construction: Heavy-duty, fully insulated steel construction designed for rigorous commercial use and frequent access.