Z-Series Metal 1 Hour Fire Rated Hinged Loft Access Doors – 1160 & 1161

• Fully complies with NHBC standards for having a minimum access opening of 520mm
• Purpose made product with proven performance
• Superior to site fabricated panels
• Provides up to 60 minutes fire protection and Class O surface spread of flame classification
• Excellent aesthetic appearance and factory finished
• Maintenance free, no need to paint
• Allows the use of a telescopic ladder if required
• Incorporates secure twist operated catch assembly
• U value 0.82 W/m2k and 0.35W/m2k option
• Acoustic performance of 29dB

• Fire testing conducted by Warrington Fire Research Ltd
• 0.35U value option meets Robust Details
• Complies with Building Regulations document L1A & L2A (2013 Edition)
• Meets all relevant British Standards and NHBC requirements

• The frame and door are fabricated in 1mm and 1.2mm Zintec electrogalvanised mild steel. The door is lined with a fire-resistant sub-panel to enhance fire resistance and stability. Polyester powder coating, lightly textured.
• Door and frame available in white only RAL 9016.

• The 1160 and 1161 are designed to fit between trussed rafters or ceiling joints spaced at 600mm centres which provide a clear joist opening width of 562mm to be plasterboard lined to give 542mm.
• If the joist spacing does not provide this opening width, a suitable trimmed opening must be formed.
• It is essential that trimmers are installed between the ceiling joists across the ends of the frame.
• The frame fixes with 10 screws, six into the ceiling joists at the sides of the frame, and four through the ends of the frame into the trimmers.
• A 50mm tall by 10mm thick protective plasterboard surround is required along all four sides of the trimmed opening.

L20 Doors/Shutters/Hatches

Clause 630^ | HATCHES

• Manufacturer: Timloc Building Products, Timloc House, Ozone Park, Howden, East Yorkshire, DN14 7SD. Tel: 01405 765567 Web: www.timloc. co.uk
• Product reference: 1160 or 1161
• Type: loft access door (Hinged)
• 1160 to suit fitting 542mm x 745mm
• + 1161 to suit fitting 542mm x 630mm
• Specification: insulated and draught stripped
• Colour: textured white polyester powder coating

Timloc loft access doors contain glass wool insulation with a Thermal Conductivity of 0.037W/mK. For this reason, a correction U value of 0.004W/m2k should be calculated to the proposed U value figures for a ceiling (U value for a ceiling, not to exceed 0.16W/m2k).

With reference to insulation, the products in this range do not use, contain or produce CFC’s, ie. HCFC’s & HFA’s. The mineral wool insulation relies on entrapped air for its thermal properties; air is not a VOC and it does not have Global Warming Potential (GWP) or Ozone Depletion Potential (ODP).