Other Products / Services #5124077

FLOORING FOR LARGE AREAS

For large floors the gap given at periphery at the wall line may not be sufficient to accommodate the movement in the boards. So in addition to gap at the periphery of the walls, Board joints will have to be provided in the supporting frame

Recommended thickness: 20mm, 25mm & 30mm

• Light gauge steel sections like C studs 100 x 50 x 20 2.3mm thick or 150 x 75 x 20 3.2mm thick may be selected to have required strength as per the plan of the supporting RCC beam or R.S.Js provided in the structure.
• Place Principal Joist across the beams at 60 or 40 mm apart and common joists at 60 or 40 mm apart as required.
• Provide independent joists at the board joints.
• Fix boards only on the principal joists with a gap of 3 to 5mm.
• Fill the gap with Acrylic filler or Polysulfide.
• This will have a sliding frame effect and takes care of the movement in the board.
• Decorate the floor with lacquer spray, clear polyurethane or clear epoxy as desired.

FLOORS WITH CERAMIC TILES

Recommended thicknesses: 20 mm or 25 mm.

• Light gauge steel sections of 2.3 or 3.2 mm thick may be selected as required.
• The Principle joists may be at 400mm or 600mm and common joists at 120 mm. Provide double frame at joint between boards.
• Provide control joints at 4.8m or 6m and also around the periphery of the room.
• Use elastic tile adhesive as per the users guide for fixing the tiles. Fill the tile joints with highly elastic filler. Avoid tile fixing on board joints.
• Control joints may be filled with polysulfide or elastic filler.
• It is better if a coat of water repellant paint is given on the back side of the panels before fixing the panels on the frames.

CEMENT BASED CERAMIC TILE FIX

• When tile fixing is done with cement mortar. First a coat of water repellant paint has to be given on both the surfaces of the board.
• The tile fixing has to be done on cement mortar bed of 30 mm reinforced with wire mesh.
• Tile fixing in this case can be done on the boards joints also.

FLOOR COVERINGS

• Bison Panel is basically restricted to dry floor applications. However, occasional wetting will not pose any serious problems.
• The flooring can be finished with many kinds of floor coverings like tiles, PVC coverings, etc.
• Carpets made of synthetic fabrics, coir and jute can be used on Bison Panel flooring. When synthetic fiber carpets with an underside coat of impervious material is used, the board in the reverse side should be balanced with an appropriate covering.

Bison panel can be extensively used for the construction of modular houses for dwelling purpose. The board is used for dry wall construction as well as on underlay for roofs and they suit varying weather & terrain conditions. Thousands of shelters have been supplied to numerous organizations in the private and public sectors including Defense and Para military forces

Varieties of the houses include farm houses, dwelling houses, row houses, project houses, rest houses, guest houses, hill resorts, store sheds, penthouses, security cabins, mobile check posts, industrial sheds, shelters for disaster management, defense barracks, school buildings etc

NCL has adopted simple track and panel system for accurate alignment of walls required for the shelters. The ‘S'-shaped profile and ‘W’-shaped profiles are used for making the panel walls in single skin and double skin respectively. Same profiles are also used for the assembly of roof sheets in single skin and double skin. The wall panels are inserted in bottom track fixed on foundation with screws and self expanding plugs. The panel walls, 4 feet width, are inserted in 'W' profile & then aligned in the bottom track. Special panels are made to accommodate doors and windows. Another track channel is fixed on the top of the wall panels to make the walls stable. Separate light weight steel box sections are provided as vertical posts for fixing trusses over which roof underlay sheets or GCI sheets are fixed

The construction technique is simple. First, a thin channel section frame (Ground track) is fixed on a level base with screws and plugs. The track frame will be as per the plan configuration of the shelter. Bison panels fitted with steel profiles are then inserted in the track frame vertically by interlocking the joints of the panels to form a continuous panel wall

Specially designed posts are provided for the wall junctions and the corners. During erection, the wall panels are held in position by providing temporary props or supports. Upon completion of the wall panels, another channel frame (top track) is fixed on the top of the panel walls to keep the wall panels tight in position. The top track also helps to distribute the roof load uniformly on the wall panels. Special panels and ready fit frames are used for doors and windows

Light weight trusses and purlins are fixed on the top track with specially designed components. Roof sheets are then spread on the purlins duly interlocking the panels as was done in the case of wall panels. Roofs can be either gable type or pitched type. A roof coat is given to the panels to prevent leakages

WHY BISON PANEL SHELTERS?

• SIMPLE ENGINEERING :The systems developed by NCL comprise of simple engineering requiring no high skills & no heavy machinery requirement for erection. The shelters are constructed with track & panel system developed by NCL
• EASY TO TRANSPORT :All components like wall panels, window panels, door panels, trusses, & roof elements are made separately in small elements that can be easily transported to any difficult terrain. Further, shelters can dismantle & re-erected in different locations, if needed
• REQUIRE VERY LITTLE FOUNDATION :The shelters are designed on the basis of light weight & high strength. Hence, very little foundations are required
• SPEED OF ERECTION :Once the foundation required for the shelters is ready, they can be constructed in a short time. For example, a shelter of 1000 sq. ft. can be erected & made ready for occupation in 8 to 10 hours
• LESS SKILLS REQUIRED FOR CONSTRUCTION :The technique involved in execution is simple & requires only few hands. One trained hand with three or four helpers can easily handle the work
• THEY ARE DURABLE :As the chief matrix of Bison Panel is cement, the structures made of it are as durable as cement products. If they are not subjected to physical damage, the structures would have a life of decades.
• THEY ARE COMFORTABLE :Since Bison panels do not cause condensation & have superior thermal qualities, the shelters are comfortable for living in cold & hot regions alike. However, provision for false ceiling & thermal packing of walls are part of the system adopted in the construction of the shelters to ensure comfort.
• SHELTERS ARE SCALABLE :Bison Panel Shelters have the flexibility & adoptability from a small hut to a huge industrial shed or a posh building with modern amenities & luxuries. Hence, they can be custom made as per the individual requirements of the clients.
• SHELTERS CAN BE FITTED WITH MODERN AMENITIES :The shelters can be provided with modern amenities like false ceiling, corridors, lobbies, modern kitchen rooms, comfortable bed rooms, attached toilets, & electrical fittings like fans, air conditioners, etc. as in the case of conventional buildings.
• SHELTERS ARE DESIGNED FOR VARYING PURPOSES :NCL has designed a number of models for farm-houses, resorts, store sheds, site offices, project houses, individual sheds, school buildings, etc. using the above concept. These models have been tested for their behavior during fire accidents & heavy rains. They were also tested against shocks experienced during earth quakes. Individual elements were also tested for their strength at the Structural Engineering Research Laboratory in Chennai, India.
• SHELTERS CAN WITHSTAND EXTREMES OF WEATHER :Bison can withstand varying seasonal conditions viz rain, wind, or snow, & do not spread fire. They have excellent thermal insulation & are earthquake resistant. Shelters have been subjected to fire, rain, & earthquake tests.
• INCLUSION IN DGS&D RATE CONTRACT :Since 2000, Bison Panel Prefab specifications & systems are included in the Rate Contracts of the Directorate General of Supplies & Disposal which is part of the Ministry of Commerce & Industry in the Government of India. Consequently, NCL has supplied structures in bulk to numerous organizations within the government.
• INFRASTRUCTURE CAPABILITY :NCL has an in-house roll forming facility to manufacture all types steel profiles required for Prefab construction. In addition, NCL also has an in-house design facility & has trained more than 1200 people (on contract) in erection works.

FIXED CEILING

• Fix light steel box section beams 100mm X 50mm and 1.6mm / 2mm thick at 4'-0 or 1220mm intervals across the walls or suspend them by means ofsuitable clamps fixed on the sofit.
• Fix principal C studs 75 X 50 X 20 – 1.6mm thick below the beams with screws.
• Fix common studs between principal studs at 4 feet intervals with suitable clamps.
• The board will have to be fixed on principal joists as well as common joists with 3 to 5mm gap. The gap can be filled with Acrylic filler or polysulfide as the case may be.
• Provide independent principal studs at the edge of the boards.
• Painting for the board has to be done on both sides and edges.
• When timber studs are used the same procedure may be followed.
• Half an hour fire resistant doors with Bison Board have been successfully tested at the Central Building Research Institute Roorkee. Shutter Frame is made out of hard wood with top, bottom, middle & intermediate rails and two vertical members, providing an air gap of about 25 mm. Bison Panels 12 mm thick, protected with a special coating are fixing on either side of the shutter frame.
• Door Frame is also made of hard wood suitably painted with a special coating around.
• Shutter is hung with 4 hinges from the door frame.