Leaf format Single
Operation Hinged
Material Aluminium
 
 
 

SSY-50TB service stair hatches are designed to be used for access on a flat roof where a fixed stairway is available. They are 760 x 3360mm in size, which provides additional headroom for applications with more gradual stairs.

They feature a thermally broken frame and cover design that minimises heat transfer between interior and exterior metal surfaces and provides a high degree of thermal efficiency. There is 75mm of polyisocyanurate insulation to both the upstand and the cover.

In addition, the cover is fitted with a closed-cell EPDM gasket designed to reduce the air leakage though the closed cover, ensuring that the air leakage requirements of Building Regulations Part L are achieved.

Performance

  • U-Value .278 W/m2K (homogeneous)
  • 1.39 W/m2K (developed area)
  • BS EN 12207:2000 Air Permeability
  • 4.83 m3/hour/m2 at 600 Pa
  • BS EN 12208:2000 Water Tightness Class 9A
  • BS EN 12210:2000 Wind Resistance Class E2400
  • BS EN 1991-1 Snow Load 1200 Pa for 1 hour
  • BS 8200 Impact Resistance Pass
  • BS En ISO 140 Acoustic 25dB
  • BS En 1627-1630 Security Pass
  • Wind speed with open cover 30 m/s


SSY-50TB service stair hatches are designed to be used for access on a flat roof where a fixed stairway is available. They are 760 x 3360mm in size, which provides additional headroom for applications with more gradual stairs.

They feature a thermally broken frame and cover design that minimises heat transfer between interior and exterior metal surfaces and provides a high degree of thermal efficiency. There is 75mm of polyisocyanurate insulation to both the upstand and the cover.

In addition, the cover is fitted with a closed-cell EPDM gasket designed to reduce the air leakage though the closed cover, ensuring that the air leakage requirements of Building Regulations Part L are achieved.

Performance

  • U-Value .278 W/m2K (homogeneous)
  • 1.39 W/m2K (developed area)
  • BS EN 12207:2000 Air Permeability
  • 4.83 m3/hour/m2 at 600 Pa
  • BS EN 12208:2000 Water Tightness Class 9A
  • BS EN 12210:2000 Wind Resistance Class E2400
  • BS EN 1991-1 Snow Load 1200 Pa for 1 hour
  • BS 8200 Impact Resistance Pass
  • BS En ISO 140 Acoustic 25dB
  • BS En 1627-1630 Security Pass
  • Wind speed with open cover 30 m/s


 
 
 
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Bilco UK Ltd
No 20 Park Farm Business Centre
Fornham St Genevieve
Bury St Edmunds
IP28 6TS
Tel: 01284 701696
Fax: 01284 702531
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Type SSY-50TB service stair access hatch