• Mark a chalk line as per lay out plan of the partition to be erected, on floor.
• Place the channel with the chalk line mark and fix it to the floor using 38mm long nylon sleeves and wood screws.
• Mark a chalk line on to the soffit /ceiling by using plumb bob to get perfect vertical partition and fix another channel with this line.
• Take stud and cut it 5mm short in length than the actual distance between two channels fixed to the floor and ceiling.
• Place the stud between the channels and twist it to sit in the web of the channels. Studs abutting to the wall / partition should be screw fixed with nylon sleeves and wood screws. Remaining studs should be placed at 610 mm centers, ensuring all cutouts of studs, for services, fall in one line.
• When the partition height exceeds the board length a horizontal channel is fixed to the frame so that the board edges are supported properly.
• Length of studs can be increased by overlapping two studs face to face by 600mm.

• Ramco Hilux boards are available with square edges only. Therefore the edges of the boards are made beveled (4x3mm) on face side before fixing.
• The boards are placed against the frame with 2mm gap in between two boards and screw fixed to each stud & channel by pre drilling and making space for counter sunk head to sit in.
• Alternatively self drilling and tapping screws can directly be used to fix the boards.
• The screws should be minimum 12 mm away from the edge and 40 mm from the corners and at an interval of 200 mm.
• The length of the screw should be 10mm + thickness of the board for G.I.frame and 25mm + thickness for the timber frame.
• The longitudinal edges of the boards should be perfectly plumbed.
• The vertical joints of the Boards should be staggered to avoid through joints. This can be achieved by fixing the first board with 2’ width on one side and 4’ wide on the other side.
  

• The first layer boards are fixed along the perimeter only.
• The outer layer of boards is screwed to each stud and channel at 200 mm centres, maintaining 2mm gape in between the boards.
• The vertical joints are staggered in each layer.
• When the partition height exceeds the board length, horizontal joints are also staggered by 2’ minimum.

• Hilux board cut in 60-100mm wide strips are called filletts.
• These are fixed to both sides of all the stud and channels with 25mm long screws at 200mm intervals prior to fixing full size boards.
• Full size board is then fixed to the studs and channels through these fillets with 35mm long screws.
  

• Mark water level on to the wall / partition as per the drawing, leaving a scope for board thickness.
• Fix G.I. Perimeter channel to the perimeter of the wall/ partition with nylon sleeves and wood screws(38 mm long)at 600mm centres, at the required level.
• Mark the soffit at 1220 mm intervals in both the directions to form a 1220x1220 grid. The intersection points are to be drilled by hammer drill machine using 13mm drill bit.
• Insert roul plug (12 x 38mm) with one leg of soffit cleat attached to it, into these holes and tight the fastener to its best.
• Measure the distance between soffit & ceiling level and cut the G.I.Angle of size 25x10mm accordingly.
• Fix one end of the angle to the soffit cleat and other to the Intermediate channel by ¼” x ½ “long bolt.
• Suspend all Intermediate channel at 1220mm centres in line and level. Overlap the channels by 6” to increase the length and bolt it at two places by ¼” x ½ “ bolts to get the rigidity.
• Ceiling sections should be attached to the Intermediate channel at 457mm centre in perpendicular direction to it with the help of connecting clips. Overlap the ceiling sections by 6” to increase the length and screw them at 4 places.
• Openings for light fittings / AC grills etc. can be formed by using perimeter channel all around the opening. Some extra members/ suspension materials may be required to maintain the integrity of the frame work.
• In case of Industrial sheds, suspension can be taken from the purlins if possible or by incorporating additional members to it.

• First, the square edges of the boards are made tapered or beveled 4x3mm from the face side.
• The boards are then positioned underside of the frame keeping longitudinal edges of the board across / parallel to the ceiling section.
• A gap of 1.5 to 2 mm is provided all around in between the boards.
• The boards are screw fixed to the frame by using self drilling and tapping screws with under head cutter @ 200mm centres.
• The screws should be 15mm away from the edges and 40 mm from the corners at an interval of 200mm.
• The joints between the boards are staggered in brick work style to make the ceiling rigid and properly aligned to the required level.

Jointing & finishing is done as per recommended practice by using jointing compound (for CALCIUM SILICATE BOARDS) & fibre tape.

• First of all a chalk line is marked on the wall or partition for the given ceiling level, as per the drawing.
• G.I. or pre-coated steel angle 25x25mm is screw fixed to this line with nylon sleeves and wood screws of 38mm length at not more than 450 mm centres.
• Main “T” sections are then suspended,1200mm apart, from the soffit using expansion fasteners, 4mm thick wire road and level clip.
• 1200mm long cross “T” sections are then inserted into the “H” slot of main “T” sections at 600 mm centres and locked together to form a grid of 1200x600 mm.
• 600 mm long cross “T” sections are inserted and locked into the “H” slot of 1200m long cross “T” to form a grid of 600x600mm.
  

• Apply Jointing compound at joint
• Firmly embed the 48mm wide self adhesive fiber tape centrally into the joint.
• Apply jointing compound on the fibre tape with tapping knife.
• Use sufficient pressure to ensure that the tape is firmly placed.
• The tape should be free from trapped air/bubbles and this application should be approx. 4” wide.\
• Remove extra material lying out side of the joint and allow it to dry.
  

• When the first coat is dried, apply second coat of jointing compound to the joint.
• Ensure that the preceding application and tape is completely covered by making this application wider than the earlier.
• Remove extra material and allow it to dry.
  

• Apply jointing compound on the joint.
• Firmly stick the 48mm wide self adhesive fiber tape centrally onto the joint.
• Apply jointing compound on the fibre tape with tapping knife.
• Use sufficient pressure to ensure that the tape is firmly placed.
• The tape should be free from trapped air/bubbles and this application should be approx. 6” wide.
• Remove extra material lying out side of the joint and allow it to dry.
  

• Apply a thin layer of jointing compound over the previous application keeping it 12” wide.
• Remove extra material lying out side of the joint and allow it to dry.
• Make sure that the width of the joints should be as wide as described above. The narrow finished joints will be more visible than the wider one.
  

• Nail screw heads should be just below the surface of the board and should not be driven too deep.
  All nail/ screw heads are to be covered with the jointing compound twice to achieve the right finished surface.
  

• It is recommended that the square edges of the boards should be made tapered (40x1.5mm) at site to achieve good results instead of of forming “V” groove.
• Please make sure the screws are sufficiently & properly driven and there is no movement between the board and steel section, before starting Jointing & finishing.
• Please make sure that sufficient jointing compound is applied between the board surface and the tape. Please do not depend on the self adhesive used with the fibre tape, because it may not be sufficient to hold the tape with the board surface.

• It is essential that the Fevicall is first applied to the laminate and not to the board surface. The board surface sucks the adhesive much faster than the laminate and gets dry, which causes temporary sticking of laminate, which may leave the surface after some time.

• Mark the floor as per the layout plan.
• Cut the floor & ceiling channel at one side of flange through its web at every 150mm.
• Put this channel at the marking and bend the channel according to the layout marking.
• Fix it with nylon sleeves and wooden screws at every 150mm c/c to the floor.
• Fix head channel, as described above in plumb and line with the floor channel, at the soffit or ceiling as described above.
• Insert metal studs at 150mm intervals in between the floor and head channel.
• Check the frame work is properly aligned and plumbed, as per the layout marked at the floor.
  

• The boards are to be curved one by one, prier to installation by making them sufficiently wet by sprinkling water on both sides of the boards.
• Allow these boards to absorb water for 30minutes.
• Make 1220mm wide wooden structure of the required radius.
• Put the wet boards on to this wooden structure and try to press the boards very gently, starting from the centre to the ends on both sides.
• As soon as the board gets the shape it is to be removed from the wooden structure and to be placed at floor vertically widthwise and leave them air drying for.
• All the boards are to be bent like this before fixing.
• Now place the first board along the frame work at one end.
• Start screwing the board from one end of the board, by using self tapping screws 12mm away from the edges and 40mm from the corners at 200mm c/c to each metal stud and floor & ceiling channel.
• Complete the entire area as above.
• Jointing and finishing is to be done as per recommended practice.
  

• Mark the floor as per the layout plan.
• Cut the main runner/ Intermediate channel at one side of flange through its web at every 150mm.
• Put this channel at the marking and bend the channel according to the layout marking.
• Bolt or screw this channel at the cut and bend portions to retain its shape.
• Suspend this shaped channel at every 1220mm intervals to the soffit with the help of metal rowl plug, soffit cleat and suspension hangers.
• Fix secondary channel or ceiling sections to this channel in perpendicular direction to it at 150mm intervals with the help of connecting clips.
• Check the frame work is properly aligned, as per the layout.

• The boards are to be curved one by one, prier to installation by making them sufficiently wet by sprinkling water on both sides of the boards as described for partition/ wall lining.
• Now place the first board along the frame work at one end.
• Start screwing the board from the centre of it, to both sides, by pushing it towards the frame and using self tapping screws 12mm away from the edges and 40mm from the corners at 200mm c/c to each metal section.
• Complete the entire area as above.