BILCO UK LTD

PARK FARM BUSINESS CENTRE
FORNHAM ST GENEVIEVE
BURY ST EDMUNDS
SUFFOLK IP28 6TS

Tel: 01284 701696
Fax: 01284 702531

Company Logo

Suppliers of: access doors floor access doors roof access hatches roof access hatches roof fire vents roof smoke vents automatic roof smoke vents bs 7346 roof smoke vents bs 558 smoke vents en 12101

Bilco UK Ltd Supply a range of roof access hatches, smoke vents, floor doors, floor access covers, fall protection products and commercial escape & access ladders.

Based in Suffolk, Bilco can supply the construction trade with a range of standard roof hatches, smoke vents, and floor doors in various sizes and materials direct from stock, delivered by a nationwide pallet-line system or dedicated consignment. Bespoke items can also be undertaken with the assistance of our technical team.

NSHEV (Natural Smoke & Heat Exhaust Ventilators)

 

CE Marking: Bilco UK complies with all CE Marking legislation. See our website for our declaration of conformity.

Useful Resources:

  • Bilco Assist: Use Bilco assist to identify the essential design considerations required to ensure safe access points onto flat roof areas
  • BIM Models: Click Here
  • NBS Specifications: Click Here
  • CAD Drawings: Click Here
  • Installation Videos: Click Here
  • Find out more about the RIBA Accredited CPD: Safe Access All Areas Click Here
  • View the Howe Green entry on BPi: Click Here

Bilco supply the following ranges:

Roof Access Hatches:

Roof access hatches provide access to the roof areas for routine maintenance and inspection as well as for servicing of HVAC systems and other roof mounted equipment. They are ideally suited for use in office buildings, flats, factories, warehouses, retail stores, shopping complexes, hotels, manufacturing plants, hospitals, schools, auditoria and sports facilities where roof access is a requirement.

Natural Smoke & Heat Exhaust Ventilators (NSHEV) - CE Marking Compliant:

Natural smoke vents help vent smoke and gases from burning buildings primarily to provide clearer means of escape for individuals within the building. They also aid firefighting visibility when entering the building to fight the fire and reduce the lateral spread of the fire. Used widely in stairwells, corridors, smoke shafts and on roof areas of factories, warehouses, auditoria and retail facilities. CE Marked Compliant.

Bilco natural smoke and heat exhaust ventilators are manufactured to comply with all the latest regulations including the Construction Products Regulation 305/2011. All standard vents are supplied CE marked and with a Declaration of Conformity and are manufactured to meet the demands of Building Regulations, Approved Document B, BS9999 and EN12101-2.

Safety Products:

Bilco can also supply a range of Safety Products to offer fall protection and safety in accessing roof and floor areas. Bilco can also supply intruder protection systems to safeguard against trespass.

Ladders / Step Over Ladders / Roof Mounted Walkways:

Bilco supply a comprehensive range of ladder and walkways for roof access. These include Fixed Vertical Ladders (with or without Safety Cages & Guardrails), retractable ladders and loft ladders; as well as a reange of roof mounted walkways to provide safe access to rooftops.

Floor Access Doors and Howe Green Access Covers:

Our range of floor access solutions includes through-floor doors and the industry standard for accessing underfloor services - Howe Green floor access covers.

Further technical information is available to download from the BPi download Library

ACCESS COVERS Airports .
ACCESS COVERS Airtight .
ACCESS COVERS Aluminium .
ACCESS COVERS Aluminium Anodized Finish
ACCESS COVERS Aluminium Custom Finishes
ACCESS COVERS Aluminium Surface Mounted
ACCESS COVERS Aluminium Tread Plate
ACCESS COVERS BS EN 124 .
ACCESS COVERS BS EN 124 Class A15-F900 Loadings
ACCESS COVERS Cable Outlet .
ACCESS COVERS Cellar .
ACCESS COVERS Composite .
ACCESS COVERS Composite Aluminium
ACCESS COVERS Concrete Floor Finishes .
ACCESS COVERS Double Leaf .
ACCESS COVERS Drainage Doors .
ACCESS COVERS Exterior External .
ACCESS COVERS Fall Protection Gratings .
ACCESS COVERS Fire Rated .
ACCESS COVERS Fire Rated BS 476:Part 22 1 Hour
ACCESS COVERS Fire Rated BS 476:Part 22 1.5 Hour
ACCESS COVERS Fire Rated BS 476:Part 22 2 Hour
ACCESS COVERS Fire Resistant .
ACCESS COVERS Flexible Floor Finishes .
ACCESS COVERS Flooring .
ACCESS COVERS Flooring Lightweight Composite
ACCESS COVERS Grating Incorporated .
ACCESS COVERS Hard Floor Finishes / Infills .
ACCESS COVERS High Security .
ACCESS COVERS Hinged Lifting Assistance Mechanism Assisted Opening
ACCESS COVERS Insulated .
ACCESS COVERS Internal Interior .
ACCESS COVERS Ladder Safety Posts .
ACCESS COVERS Lightweight Slim .
ACCESS COVERS Modular Systems .
ACCESS COVERS Multiple Unit .
ACCESS COVERS Natural Stone Floor Finishes .
ACCESS COVERS Pan Covers .See Also PAN COVERS:
ACCESS COVERS Purpose Made Bespoke and Custom Designs .
ACCESS COVERS Recessed .
ACCESS COVERS Recessed for Block Paviors
ACCESS COVERS Recessed for Floor Finishes
ACCESS COVERS Security Covers .
ACCESS COVERS Slip Resistant/Anti-Slip/Low Slip Surface .
ACCESS COVERS Stainless Steel .
ACCESS COVERS Steel .
ACCESS COVERS Steel Galvanised
ACCESS COVERS Steel Galvanised BS EN 124
ACCESS COVERS Steel Galvanised BS EN ISO 1461:1999
ACCESS COVERS Steel Galvanised Exterior
ACCESS COVERS Steel Galvanised Recessed
ACCESS COVERS Steel Galvanised Solid Top
ACCESS COVERS Tiled Walls .
ACCESS COVERS Tree Pit Covers .
ACCESS COVERS Unfilled .
ACCESS COVERS Vehicular .
ACCESS DOOR Grating Panels .
ACCESS DOORS . .
ACCESS DOORS Aluminium .
ACCESS DOORS Double Leaf .
ACCESS DOORS EN 124 .
ACCESS DOORS Extreme Loading .
ACCESS DOORS Fire Rated .
ACCESS DOORS Floodtight .
ACCESS DOORS Floor .
ACCESS DOORS Floor Fire Rated
ACCESS DOORS Floor Fire Rated ASTM E119
ACCESS DOORS Floor Fire Rated BS 476: 1 Hour - 3 Hour
ACCESS DOORS Floor Fire Rated NFPA 251
ACCESS DOORS Floor Fire Rated NFPA 80
ACCESS DOORS Floor Fire Rated Up To 3 Hours
ACCESS DOORS For Tiling .
ACCESS DOORS Lift Assisted .
ACCESS DOORS Lockable .
ACCESS DOORS Odour Control .
ACCESS DOORS Pit .
ACCESS DOORS Purpose Made .
ACCESS DOORS Recessed .
ACCESS DOORS Steel Galvanised Steel
ACCESS DOORS Steel Stainless Steel
ACCESS DOORS Walls .
ACCESS HATCHES See Also ACCESS COVERS: See Also ROOF ACCESS HATCHES:/LOFT ACCESS DOORS:
ACCESS LADDERS Aluminium BS 4211:2005 +A1 2008
ACCESS LADDERS Dropdown Means-of-Escape .
ACCESS LADDERS EN 14975 (DIN 4570) .
ACCESS LADDERS Flat Roof .
ACCESS LADDERS Retractable Concertina
ACCESS LADDERS Retractable Industrial Grade EN 14975
ACCESS LADDERS Roof Access .
ACCESS LADDERS Safety Cage and Guardrails Combined BS 4211:2005 +A1 2008
ACCESS LADDERS Safety Hoops Combined .
ACCESS LADDERS Safety Hoops Combined BS 4211:2005 +A1 2008
ACCESS LADDERS Safety Mounting Devices .
ACCESS LADDERS Security Gate Combined .
ACCESS LADDERS Sloped Ships Ladder Type .
ACCESS LADDERS Special Sizes .
ACCESS LADDERS Steel .
ACCESS LADDERS Steel BS 4211:2005 +A1 2008
ACCESS LADDERS Telescopic .
ACCESS PANELS Airtight .
ACCESS PANELS Aluminium .
ACCESS PANELS Antibacterial Antimicrobial .
ACCESS PANELS Fire Resistant .
ACCESS PANELS Fire Resistant BS 476:1987 Part 22
ACCESS PANELS Flexible Wall Tile Fitting / Tile Insert
ACCESS PANELS Floor .
ACCESS PANELS Invisible Closure Systems .
ACCESS PANELS Lockable .
ACCESS PANELS Metal Wall Tile Fitting / Tile Insert
ACCESS PANELS Plumbing .
ACCESS PANELS Purpose Made .
ACCESS PANELS Stainless Steel .
ACCESS PANELS Steel .
ACCESS SKYLIGHTS . .
ALARM SYSTEMS Fire Alarms .
BASEMENT DOORS Exterior Access Sloped Entrance Hatches .
BASEMENT DOORS Exterior Access Sloped Entrance Hatches Emergency Exit / Emergency Egress
BASEMENT DOORS Exterior Access Sloped Entrance Hatches HDPE Simulated Wood
BASEMENT DOORS Exterior Access Sloped Entrance Hatches Steel
BASEMENT DOORS Exterior Access Sloped Entrance Hatches Steel Sided
BASEMENT DOORS Exterior Access Sloped Entrance Hatches Wide Openings
BASEMENT ENTRANCES Exterior Basement Access Sloped Entrance Hatch / Stairwell Combined
BASEMENT LIGHTWELLS Emergency Exit Egress Window Wells
BASEMENT LIGHTWELLS HDPE .
BASEMENT LIGHTWELLS Modular Systems .
BASEMENT LIGHTWELLS Window Well Dome Covers .
CAR PARK Smoke Control Systems .
CAT LADDERS Handrail Combined .
CAT LADDERS Metal .
CAT LADDERS Safety Hoops Combined .
CAT LADDERS Steel .
CELLAR DOORS
CELLAR FLAPS .
COVERS EN 124 .
COVERS Fire Rated .
COVERS Insulated .
COVERS Lift out .
DOORS DOMESTIC Basement Cellar Access
DRAINAGE CHANNELS Linear .
DRAINAGE CHANNELS Linear Antislip Slip Resistant Safety Flooring Applications
DRINKING WATER TREATMENT Facilities Security Intrusion Detection Systems DHS Safety Act Anti-Terrorism Designation (USA)
DRINKING WATER TREATMENT Facilities Security Intrusion Detection Systems Security Services Approved (UK)
DRINKING WATER TREATMENT Facilities Security Intrusion Detection Systems Tampering Detection and Alarms
DRINKING WATER TREATMENT Facilities Security Intrusion Detection Systems Wireless Systems
DUCT COVERS Sealed Aluminium
DUCT COVERS Sealed EN 124
EXPLOSION VENTS Explosion Relief Fire Vents .
EXPLOSION VENTS Explosion Relief Smoke Vents .
FIRE ALARM SYSTEMS Commercial .
FIRE ALARM SYSTEMS Network Controlled .
FIRE ALARM SYSTEMS Wireless Radio Controlled
FIRE ESCAPES Dropdown Ladders .
FIRE ESCAPES Loft Ladders .
FIRE ESCAPES Telescopic Ladders .
FIRE VENTILATORS Roof .
FLOOR ACCESS COVERS See Also ACCESS COVERS: .
FLOOR ACCESS DOORS See Also ACCESS COVERS: .
FLOOR DRAIN Covers Stainless Steel .
FLOOR DRAIN GRATINGS .
FLOOR DRAIN GRATINGS Stainless Steel .
FLOOR DRAINS .
FLOOR DRAINS Linear Channel .
GRATING Access Hatches .
GUARD RAILS Roof Hatches .
GUARD RAILS Roof Hatches OSHA Fall Protection Standards (29 CFR 1910.23)
GUARD RAILS Rooftop Systems .
GUARD RAILS Smoke Vent Openings .
HATCHES Cellar See Also CELLAR DOORS:
HATCHES Emergency .
HATCHES Fire Escape .
HATCHES Glazed .
HATCHES Hatch Railing Systems .
HATCHES Roof .
LADDER Roof Hooks .
LADDER Safety Posts .
LADDERS Aluminium .
LADDERS Aluminium BS 4211:2005 +A1 2008
LADDERS Concertina .
LADDERS Fire Escape Ladders
LADDERS Industrial .
LADDERS Internal Roof Access .
LADDERS Ships Ladders Companionway Ladders BS 5395 Part 3
LOFT ACCESS DOORS Fire Rated BS 476:Part 22 1 Hour / 60 Minutes
LOFT ACCESS DOORS Loft Hatches .
LOFT ACCESS DOORS Loft Hatches Ladder Combined
LOFT ACCESS DOORS Loft Hatches Telescopic Ladder Fitting
LOFT LADDERS BS EN 14975 (DIN 4570) .
LOFT LADDERS Commercial Heavy Duty
LOFT LADDERS Electric .
LOFT LADDERS Fire Escape .
LOFT LADDERS Metal .
LOFT LADDERS Metal Collapsible Trellis Concertina Scissors Operation
LOFT LADDERS Retractable Folding Concertina
LOFT LADDERS Trap Door Combined .
METAL Plate Covers .
METAL Plate covers Aluminium
METAL Plate Covers EN 124
METAL Plate Covers Stainless Steel
METAL Plate Covers Steel
PAN COVERS Aluminium .
PAN COVERS EN 124 .
PAN COVERS Fire Rated 90 Minutes .
PAN COVERS Gas Strut Lift Assist .
PAN COVERS Heavy Duty Loading Applications .
PAN COVERS Hinged .
PAN COVERS Insulated .
PAN COVERS Shallow .
PAN COVERS Stainless Steel .
PAN COVERS Steel .
ROOF Fire Vents Automatic
ROOF Fire Vents Automatic Acoustical
ROOF Fire Vents Automatic Natural Daylight
ROOF Mechanical Vent Systems .
ROOF ACCESS HATCHES Air Tight BS EN 12207:2000 .
ROOF ACCESS HATCHES Aluminium .
ROOF ACCESS HATCHES Controls .
ROOF ACCESS HATCHES Electric Operated .
ROOF ACCESS HATCHES Emegency Exit Panic Latch
ROOF ACCESS HATCHES Equipment Access .
ROOF ACCESS HATCHES Fire Rated .
ROOF ACCESS HATCHES Glazed .
ROOF ACCESS HATCHES High Security .
ROOF ACCESS HATCHES High Security Applications .
ROOF ACCESS HATCHES Hinged .
ROOF ACCESS HATCHES Insulated .
ROOF ACCESS HATCHES Ladder Access .
ROOF ACCESS HATCHES Ladder Access Flat Roofs
ROOF ACCESS HATCHES Louvred Curb .
ROOF ACCESS HATCHES Manual Handling Regs Requirements .
ROOF ACCESS HATCHES Plant Access .
ROOF ACCESS HATCHES Powered Access .
ROOF ACCESS HATCHES Purpose Made Bespoke and Custom Designs .
ROOF ACCESS HATCHES Refurbishment .
ROOF ACCESS HATCHES Safety Guardrails .
ROOF ACCESS HATCHES Security Access .
ROOF ACCESS HATCHES Security Burglar Resistant BS EN 1627
ROOF ACCESS HATCHES Service Stair Access .
ROOF ACCESS HATCHES Ship Stair Access .
ROOF ACCESS HATCHES Sit On Curb .
ROOF ACCESS HATCHES Translucent Dome .
ROOF ACCESS SYSTEMS Guardrails .
ROOF ACCESS SYSTEMS Ladder Incorporated .
ROOF ACCESS SYSTEMS Ship Stair Incorporated .
ROOF EDGE PROTECTION Roof Edge Protection Systems Roof Edge Protection Barriers
ROOF GUARDRAIL SYSTEMS Bespoke Purpose Made .
ROOF GUARDRAIL SYSTEMS BS 6399 Part 2 .
ROOF GUARDRAIL SYSTEMS BS EN 14122 .
ROOF GUARDRAIL SYSTEMS EN 13374 Class A .
ROOF GUARDRAIL SYSTEMS Self-Supporting Safety Railings .
ROOF GUARDRAIL SYSTEMS Temporary Portable Guardrails Collapsible Guardrails
ROOF GUARDRAIL SYSTEMS Tubular .
ROOF GUARDRAIL SYSTEMS Tubular Aluminium .
ROOF GUARDRAIL SYSTEMS Tubular Counterbalance Handrails .
ROOF GUARDRAIL SYSTEMS Tubular Freestanding .
ROOF GUARDRAIL SYSTEMS Tubular Steel .
ROOF SAFETY BARRIERS Railings Barriers Fencing .See Also ROOF GUARDRAIL SYSTEMS:
ROOF SAFETY SYSTEMS Permanent Fixed
ROOF SAFETY SYSTEMS Permanent Ridge .
ROOF SAFETY SYSTEMS Valley Frames Portable Mobile Walking Frames
ROOF VENTILATORS . .
ROOF VENTILATORS Fire Control .
ROOF VENTILATORS Flat Roof .
ROOF VENTILATORS Fusible Link Control .
ROOF VENTILATORS Heat and Smoke Release Automatic .
ROOF VENTILATORS Remote Control .
ROOF VENTILATORS Smoke Release .
ROOF WALKWAYS Rooftop Walkway Systems .
ROOF WALKWAYS Rooftop Walkway Systems Aluminium
ROOF WALKWAYS Rooftop Walkway Systems BS 5395:Part 3
ROOF WALKWAYS Rooftop Walkway Systems Roof Mounted Stepovers / Step Over Systems
ROOF WALKWAYS Rooftop Walkway Systems Safety Walkways
ROOF WINDOWS Access .
ROOF WINDOWS Smoke Ventilation .
ROOF WINDOWS Smoke Ventilation Automatic AOVs .
ROOFLIGHTS Access Hatches .
ROOFLIGHTS Ventilated Fire Opening
ROOFLIGHTS Ventilated Smoke Ventilation
SAFETY ACCESS SYSTEMS .
SAFETY RAILS Rooftop .
SHOWER DRAINS . .
SHOWER DRAINS Linear Shower Channels .
SKYLIGHTS Electrically Operated .
SMOKE CONTROL Actuators .
SMOKE CONTROL Control Panels Control Units
SMOKE CONTROL Fire Ventilation .
SMOKE CONTROL Firemans Override Switches .
SMOKE CONTROL Management Systems .
SMOKE CONTROL Sensors Smoke Detectors
SMOKE CONTROL Systems .
SMOKE CONTROL Systems Car Park .
SMOKE CONTROL Ventilation - See Also SMOKE VENTILATORS: .
SMOKE SHAFT Ventilation .
SMOKE VENTILATORS AOV Automatic Opening Vents .
SMOKE VENTILATORS Car Park .
SMOKE VENTILATORS Controls Control Equipment and Accessories .
SMOKE VENTILATORS Louvred .
SMOKE VENTILATORS Mechanical Mechanically Operated
SMOKE VENTILATORS Network Controlled Management Units .
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) .
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) Acoustic
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) BS EN 12101-2
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) CE Compliant / CE Accredited
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) CE Marked / CE Marking Declaration of Conformity
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) Construction Products Directive 89/106/EEC
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) Double Leaf
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) EU Regulation 305/2011
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) Special Sizes
SMOKE VENTILATORS NSHEVs (Natural Smoke and Heat Exhaust Vents) Stairwell
SMOKE VENTILATORS Positive Pressure .
SMOKE VENTILATORS Purpose Built .
SMOKE VENTILATORS Refurbishment .
SMOKE VENTILATORS Roof .
SMOKE VENTS See Also SMOKE VENTILATORS: .
STEP OVER LADDERS Fixed Units .
VENTILATION Smoke Control .
VENTILATION SYSTEMS Smoke Control .
VENTILATORS Smoke Control .See Also SMOKE VENTILATORS:
WALKWAYS Flat Roof .
WALKWAYS Roof .
WINDOWS: MISCELLANEOUS Basement .
BIL-GUARD Rooftop Guardrail Systems
BILCLIP Flashing System
BILCO FIXED VERTICAL LADDERS Flat Roof Access Ladders
BILGUARD Rooftop Guardrail Systems
BL-Z Retractable Ladders
BL-ZBOX Retractable Ladders
BV-F90 Pan Covers
BV-THERMO Pan Covers
BVA MULTI Sealed Duct Covers
BVA-SLIM Access Panels
BVH-MAXI Deep Pan Covers
BWALK-A Roof Walkway Systems
CLASSIC SERIES Basement Access
CNIGUARD Water Treatment Facility Intrusion Detection
GOLDEN KEY Access Cover Lift-Off System
LADDERUP Ladder Safety Post
LUMIVENT Fire Vent
OS2 Electronic Operators for Smoke Control Systems
PERMENTRY Basement Access
POGO POLE Ladder Safety Post
REM SMOKE VENTS Automatic Smoke Vent
ROOFEP Roof Edge Protection Systems
SKY Automatic Smoke Vent
SKY-ACCESS Roof Access Hatches
THERMOLATCH II Hold/Release Mechanism
TNEMEC Coating
TYPE SM Basement Access
ULTRA SERIES Basement Access
VERSAMOUNT Roof Access Hatch

Bilco - How to Select the Proper Sound Rating for Automatic Smoke Vents

February 2021

Bilco - How to Select the Proper Sound Rating for Automatic Smoke Vents

Diving into the world of acoustical ratings is like opening a can of alphabet soup. You are unsure which letters will float to the top, what their significance is and how to unscramble and define the mishmash of letters staring at you.

While there is a jumble of letters, the critical ratings for determining the acoustical quality of building products fall into two groups: Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC). Depending upon the structure being built and the application of the products, the difference in the ratings is essential for architects, designers and construction teams to understand.

STC measures the extent to which sound is prevented from being transferred from one area to another. The higher the STC value, the less that sound can be transferred through a building product. STC is typically used to measure sound transmission loss over a frequency range from 125 to 4000 hertz and is most applicable for interior areas that experience mid to high frequency noises, such as conversation, television, telephones, and office equipment. A product with a high STC value, ranging from 50-60, indicates that loud speech is barely heard, if at all. A low STC rating, 20-25, indicates that loud speech is audible.

OITC rates the transmission sound between outdoor spaces and indoor spaces in a structure. Like the STC rating, OITC measures sound intensity loss in decibels. The OITC rating was developed in 1990 and is typically used to measure sound transmission loss over a frequency range from 80 to 4000 hertz. It is most applicable for measuring the prevention of low frequency exterior sounds such as automotive traffic, construction, and low-flying airplanes through exterior building surfaces.

How does this apply to automatic smoke vents? It is essential that building designers understand the source of noise, and how they can best diminish its impact.

“OITC is the preferred rating when addressing sound insulation from exterior noise – especially when transportation noise sources are impacting a building facade with significant low-frequency (bass) sound,” says Harold Merck, principal and acoustician for Merck & Hill Consultants of Atlanta. “While STC ratings may be fine for typical interior noise sources such as voices, STC does not adequately address the extended low-frequency noise contribution of aircraft, traffic or even large roof-top equipment. This also applies to large roof-top equipment noise sources as well. The OITC better addresses low-frequency noise impacts and is the more applicable sound rating for roof mounted automatic smoke vents.”

Like automatic smoke vents, the same theory holds true for exterior building windows. “Windows might have an excellent STC rating, but without a high OITC rating, low-frequency sounds can be intrusive,’’ Merck said. “Windows with a high STC rating typically have the same OITC rating as windows with a lesser STC rating, which can be a bit misleading. Ratings that include the OITC are more useful to assess how well a window will isolate environmental noise.”

Automatic smoke vents are life safety products that are generally used in large one-story buildings per National Fire Protection Association (NFPA) standards. In the event of a fire, the vents exhaust smoke, heat and burning gases from the building to improve visibility and to protect the building structure. This provides safe egress for building occupants and allows fire fighters to enter the building and contain the fire. When specifying automatic smoke vents, it is important to consider a product with an acoustical sound rating for applications such as theatres and concert halls, or projects located near highways, airports, or railroad lines.

Crossrail systemwide contractor ATC reaches for new heights with the help of Bilco UK

January 2021

With the new Elizabeth line set to deliver a 10% increase in rail capacity across central London, the project will provide a high frequency service that reduces journey times and creates new travel opportunities by linking 41 stations across 100 kilometres.

As part of the landmark construction project, over 42 kilometres of new tunnels, 50 kilometres of new track and 10 new stations are being developed in conjunction with major upgrades to the existing infrastructure.

Throughout the construction stages of the central section, which spans from Westbourne Park to Plumstead and Pudding Mill Lane, over 350 of Bilco UK’s innovative aluminium Ladder Up® Safety Posts have been specified by Crossrail’s systemwide contractor Alstom TSO Costain Joint Venture (ATC Systemwide) to provide safe and secure access.

Weighing just seven kilograms due to the milled aluminium construction, the resilient Ladder Up® Safety Posts will provide engineers with unobstructed access to the walkways when conducting essential maintenance throughout the tunnels, once the line is operational.

Once fully open, the Elizabeth line will provide an additional 1.5 million people with access to central London within 45 minutes, covering Reading and Heathrow in the West, right through to Shenfield and Abbey Wood in the East.

The specification process, managed by Construction & Rail Contractors McNealy Brown, focused on the requirement for durable yet functional access solutions that would consistently provide a safe and direct step through onto the walkway, without impacting on the surrounding electrical services.

The unique and high quality construction of the Ladder Up® Safety Post fulfilled each requirement of the brief. This includes features such as the innovative telescopic post, which mounts permanently to the top two rungs of any fixed ladder to provide a secure handhold that enables the user to enter or exit the opening in an upright and balanced position.

Clive Burfoot, Contract Manager at McNealy Brown, said: “When we first began researching potential access solutions for the Crossrail project’s central section, it became clear quite quickly that the Bilco UK Ladder Up® Safety Post was the only product available on the UK market that would fulfil our extensive list of requirements.

“The telescopic extension was one of the main benefits that secured its specification for this project, as it enables the Ladder Up® safety post to be both retracted and extended, a key function that wasn’t available with any other access solution.”

Each ladder has been installed with two Ladder Up® Safety Posts, which are located on either side of the ladder to provide the direct step through onto the walkway for increased safety and efficiency.

The installation process, which has been managed by ATC Systemwide, will provide secure access throughout all essential areas of the central section, including at either end of every station and at additional strategic locations.

Vimesshen Ravindran, Senior Mechanical Engineer at ATC Systemwide, said: “The lightweight construction of the Ladder Up® Safety Posts ensured the installation process was quick and easy, resulting in no unforeseen issues on site. When the system retracts, the high quality spring-balance and convenient lever release provides a controlled means of lowering into its retracted position. This delivers enhanced ease of operation, ensuring long term suitability and usability for the engineers when undertaking future maintenance tasks.

“The Ladder Up® Safety Posts will play an essential role in ensuring the central section of the Elizabeth line continues to run at the highest standard, so it was crucial we specified access solutions that would facilitate the continued maintenance of the line, safely and efficiently.”

The telescopic tubular section automatically locks when fully extended, while the adjustable mounting hardware accommodates any ladder rung size or spacing. The corrosion resistant construction can also withstand the demanding environment of the London underground system, ensuring its successful operation for years to come.

Darren Waters, Managing Director of Bilco UK, said: “We are extremely proud to have been involved in the UK’s high profile Crossrail infrastructure project and have worked closely with McNealy Brown and ATC Systemwide throughout every stage of the specification and installation stages.

“This has ensured our unique Ladder Up® Safety Posts have fulfilled each individual requirement of the central section of the Elizabeth line, from security and ease of usability, right through to long term durability. We look forward to seeing the completion of the Crossrail project as our innovative access solutions play a vital role in ensuring its safe and successful operation.”

Aiming to make travelling throughout the capital easier, quicker and less crowded for passengers, the Elizabeth line will not only reduce the strain on London’s transport network but transform the way passengers experience and interact with the city and its suburbs.

For further information on Bilco UK’s complete range of roof access solutions, visit www.bilcouk.co.uk or call 01284 701696.

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