Metal Loft Hatch P1160

Use
• To provide access through the ceiling into the ceiling void in situations where fire protection is required

Features and benefits
• 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

Quality
• 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

Material and colour choice
• The frame and door are fabricated in 1mm and 1.2mm Zintec electro-galvanised 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
• Loft door pole operating pole manufactured from black reinforced plastic

Installation advice
• The 1160 and 1161 are designed to fit between trussed rafters orceiling 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

Product codes

1160 loft door - 1 hour fire rated hinged 542 x 745mm 520 x 695mm 0.82W/m2k
160KL door with key lock - 1 hour fire rated hinged loft 542 x 745mm 520 x 695mm 0.82W/m2k 1
1160/35 loft door - 1 hour fire rated hinged 542 x 745mm 520 x 695mm 0.35W/m2k
1160/35KL door with key lock - 1 hour fire rated hinged loft 542 x 745mm 520 x 695mm 0.35W/m2k
1161 loft door - 1 hour fire rated hinged 542 x 630mm 520 x 580mm 0.82W/m2k
1161KL door with key lock - 1 hour fire rated hinged loft 542 x 630mm 520 x 580mm 0.82W/m2k
1161/35 loft door - 1 hour fire rated hinged 542 x 630mm 520 x 580mm 0.35W/m2k
1161/35KL door with key lock - 1 hour fire rated hinged loft 542 x 630mm 520 x 580mm 0.35W/m2k
1162 - Loft door operating pole (0.5m) for 1160 and 1161 ranges only

Technical considerations
• 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).