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Technical Specification

Portakabin Site Accommodation anti-vandal site accommodation is manufactured using robust all-steel construction methods combined with modern, innovative designs.

Our specially designed fleet provides quality, comfort and style that is second to none. The Konstructa Energy-Saver range incorporates a number of features to reduce energy use and deliver cost savings.

External walls are of a durable one-piece construction and are a solar reflective white in colour. High-performance, low-maintenance, polyester-coated, galvanised steel cladding offers protection against fire, extreme weather and accidental damage. The walls are clad internally and externally and are of a polyester-coated galvanised steel, providing an impact resistant, wipe clean finish.

The floor has a rigid galvanised steel frame and an aluminium-zinc coated steel sheet underdrawing, which offers a sturdy and robust feel. The design also prevents infestation as the thermal insulation material is laid on top of the underdrawing. The suspended floor is completely integrated into the structure of the building. This enables the building to be sited close to the ground for one-step easy access. The floor covering is durable hard-wearing vinyl, for easy maintenance.

Outstanding insulation is provided by the construction of the roof. The roof deck is of one-piece construction and is impact resistant. It is covered with solar-reflective, profiled plastisol-coated, galvanised steel to reduce heat gain. Internally, the ceiling is designed to prevent condensation problems. It is covered with the same polyester steel as the walls for a low-maintenance finish.

Protection against theft and vandalism is given by the high-security heavy-gauge steel door with a 10-point locking system – Euro Cylinder, complete with a robust lever handle and escape override on the inside. The door also incorporates a stainless steel threshold and anti jemmy bolts on the spine of the door and is designed to meet stringent security standards. The paint finished galvanised steel doors have an insulating core that minimises heat loss and the powder coated steel frame also incorporates draughtproof weather seals.

Windows have distinctive square-cornered PVC-U tilt and turn frames and polyester powder coated paint finish. Externally mounted steel window shutters incorporate secure spring-loaded retaining bolts as well as anti-jemmy features to prevent break-ins. Opening windows have lockable handles with keys. The windows are fully double-glazed for excellent thermal and acoustic performance and a thermal break prevents condensation problems.

Building layout
A variety of predefined solutions are available in an array of sizes for convenience and speed of delivery, including site offices, toilets and showers, changing and drying rooms, canteens and mess room, containers and welfare units. For more complex construction sites, Portakabin Site Accommodation also has the flexibility to customise internal layouts and provide Mobile welfare units to suit specific needs. Buildings can be linked and double or triple stacked in multiple configurations to form larger complexes and suit site requirements.

Portakabin Site Accommodation buildings are quickly and easily sited. The need for pad foundations is dependant on site conditions, total weight of the building and the imposed loads. Professional advice needs to be sought on the type of foundations required. Contact your local Hire Centre for more information. Advice on foundation loads and positions will be given by Portakabin Site Accommodation staff.

Structural integrity
Peace of mind is guaranteed by the high levels of all-round performance achieved by the Portakabin Site Accommodation building series. All Portakabin Site Accommodation buildings have been designed and manufactured in theUK under a Quality Management System meeting the requirements of ISO 9001 and also meeting the ISO 14001 environmental standards. Robust all-steel construction and a specially-designed anti-vandal specification means Portakabin Site Accommodation units provide optimum security on site.

Design loads
Floor 3.00kN/m2            Roof 0.75kN/m2
Basic wind speed: (To meet requirements of BS 6399:Part 2)

Thermal insulation
Portakabin Site Accommodation is the only site cabin manufacturer to use CFC-free ozone friendly foam insulation in all energy-saving fleet site buildings. This innovative insulation performs 42% better than the rock wool alternative which over time dislodges and falls down within the wall cavities, reducing thermal performance. All the walls, doors and roof are insulated with this environmentally friendly CFC-free Envirofoam that has no adverse impact on the environment and is a rigid polymer insulation material that is lightweight and yet enhances long-life structural strength and ensures an energy-efficient building. Upgraded underfloor insulation further reduces heat loss.

Insulation values
Elemental U-values (W/m2K)      Floor 0.71          Walls 0.59         Roof 0.42

Fire performance
Fire-engineered construction ensures safe fire performance. Non-combustible materials are used for all external cladding and internal lining of walls and ceilings; minimising the potential fire load. The walls and floor have Class ‘O’ external surface spread of flame classification, and the roof is designated FAA when tested in accordance with BS 476 : Part 3.

Climate control
A variety of heating, ventilation and air-conditioning systems can be provided for the enhanced comfort of occupants. Time-clock regulated heating that comes as standard prevents wastage and efficiently preserves required temperatures. For natural ventilation all units feature wall-mounted integrated louvres with internal coverings.

Transport and handling
Portakabin Site Accommodation buildings are transported by lorry and craned into position. All buildings have, as standard, provision for low-level lifting which supports The Work at Height Regulations 2005 to avoid the increased hazards associated with working at height. Galvanised steel ladder brackets also provide enhanced safety during roof access.

Toilet Units also incorporate non-standard windows and doors so are of a slightly different technical specification. Please contact your local Hire Centre for further information.

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© Portakabin 2019  |  Portakabin (Ireland) Limited, Roseville Business Park, Turvey Avenue, Donabate, Co Dublin   |   Tel: 01 808 5055
Registered company number 212248


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