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About Loft Access Doors

The Timloc range presents quality, loft hatches and access doors in clean simple designs that are not just easy to install and operate, but offer other features that are essential to today’s buildings, such as:

1169 Hinged Plastic Loft Hatch Door System
  • Managed heat and air leakage
  • Condensation and draught control
  • Choice of insulation material performance

There’s also a choice of:

  • Fire-rated or non fire-rated loft access
  • Closing and locking mechanisms

All our loft access hatches and doors meet the requirements of Building Regulation Part L (England and Wales), Building Regulation Part E (Northern Ireland) and Scottish Building Standards for air tightness. Products that comply with Robust Details, 0.35 and 0.25 U value versions are also available.

The performance of loft access hatches impact the building so much that the installations into new build residential and commercial buildings have to meet specific mandatory performance regulations and standards

These include:

Building Regulation Part:

  • L1A Conservation of Fuel and Power in New Dwellings (
  • L1B Conservation of Fuel and Power in New Dwellings

BS 5250

  • Code of practice for control of condensation in buildings

BS 9250

  • Code of practice for design of the airtightness of ceilings in pitched roofs

DEFRA Robust (Construction) Detail

  • Limiting thermal bridging and air leakage for dwellings and similar buildings


  • Adequate access size provision to roof spaces

NHBC, Scottish Building Standard Technical Handbook and Building Regulation Part E (Northern Ireland)

  • Guidelines for the provision of fire rated loft access
  • Solutions to help meet all of these requirements are available from the Timloc loft access hatch and door ranges.
  • nbs plus
  • riba

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