Loft Hatch SD

The "SD" hinge down steel 60-minute fire rated loft access hatch has a simplistic design for the contemporary modern house.



Further Information

  • ❑  Strictly compliant to the following regulations:
  • ❑  1 Hour Fire Rated - Tested to "Part B" BS EN 1634-1:2008 and BS EN 1634-2:1999
  • ❑  600x600 & 555x755 Air tested in a UKAS accredited test house with superb result of 0.76m3/hr @ 50Pa
  • ❑  Part "L" of building regulations for loft hatches i.e. 0.35 "U" value.
  • ❑  NHBC compliant for loft doors, including 520mm clear opening in any direction.
  • ❑  Airtight tri-drive lock with key option available
  • ❑  Picture Frame only
  • ❑  The loft hatch colour is white RAL No. 9010 with 20% gloss.
  • ❑  Easy to fit, weighing only 7.6kg, with fitting instructions on the box


Stock Sizes

 SIZE  STRUCTURAL OPENING  OVERALL SIZE Inc. FRAME DEPTH (FRAME/INSULATION) 
 550 x 550mm  555 x 555mm  600 x 600mm  63mm / 65mm
 550 x 800mm  560 x 805mm  605 x 850mm  63mm / 65mm
 550 x 755mm*  555 x 755mm  586 x 786mm  63mm / 65mm
 600 x 600mm  605 x 605mm  650 x 650mm  63mm / 65mm
 600 x 900mm  605 x 905mm  650 x 950mm  63mm / 65mm

*Note actual hatch size is 536 x 736mm to fit a ceiling cut out of 555 x 755mm when lined with 9.5mm fireboard. Other sizes do not need lining with fireboard




More Information

❑  The "SD" hinge down steel 60-minute fire rated loft access hatch has a simplistic design for the modern house.

❑  Can be operated from floor level with a pole

❑  With its powder coated zintec steel velvet white care free finish. The loft hatch needs no painting and projects into the ceiling space a mere 8mm.

❑  Once the drop-down loft door is opened, the 555x755 and 600x600mm options have a minimum clear opening to fulfill building regulations, therefore compliant to NHBC regulations as Chapter 7.2 Section D14 "to a minimum clear opening of 520mm in any direction". This will assist with storing large items in the attic.

❑  The loft access hatch is insulated with an exposed fire resistant mineral slab insulation to comply with the building regulations 0.35 "U" value.

❑  The loft access door has a tidy tri-drive budget lock with an integral chamfer for a soft closing action. A safe radial pin tumbler lockable option is available (SDL).

❑  The loft panel is completely draught sealed between the door and frame, effectively eliminating warm air leakage and vapor ingress, it also helps with ease of decoration of the ceiling up to the perimeter of the loft access frame.

❑  UKAS accredited air infiltration test compliant for loft access hatches without the use of sealant to the external frame.

In addition:

❑  The insulation used in the loft hatch is CFC & HCFC free, ODP zero and compliant to Eco Homes standards with a GWP (global warming potential) rating of zero.

❑  The SD loft access hatch box packaging is 100% recycled & recyclable.



Insulated Meter Box Technical Drawing


FITTING INSTRUCTIONS FOR 600mm JOIST CENTRES

SD 60-MINUTE FIRE RATED DROP-DOWN TRAP

Preparation

Trim out a suitable opening and fix noggins between trusses to form a clear opening of 755x555mm. Line the four timber faces with 9.5mm thick plasterboard to 60mm high (for protection against heat from the metal frame)

Fitting

With hatch open, offer frame up to the panel opening, pushing tightly upwards to ceiling to engage frame seal and fix using 50mm long woodscrews through 16no. countersunk holes. Close hatch with key.

External Wall Insulation Electric Meter Box




LENGTH CONVERTER

Type a value in the Inches field to convert the value to mm:

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MADE IN THE UK




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