Providing and fixing of acoustic wooden wall paneling at studio room A17.02.36 at A-17 building and false ceiling in server room at A-10 building North Campus of IIT Mandi

Amount

Providing and Fixing 15 mm thick densified tegular edged eco friendly light weight calcium silicate false ceiling tiles of approved texture of size 595 x 595 mm in true horizontal level, suspended on inter locking metal grid of hot dipped galvanised steel sections (galvanising @ 120 grams per sqm including both side) consisting of main ‘T’ runner suitably spaced at joints to get required length and of size 24x38 mm made from 0.33 mm thick (minimum) sheet, spaced 1200 mm centre to centre, and cross “T” of size 24x28 mm made out of 0.33 mm (Minimum) sheet, 1200 mm long spaced between main ’T’ at 600 mm centre to centre to form a grid of 1200x600 mm and secondary cross ‘T’ of length 600 mm and size 24 x 28 mm made of 0.33 mm thick (Minimum) sheet to be inter locked at middle of the 1200x 600 mm panel to from grid of size 600x600 mm, resting on periphery walls /partitions on a Perimeter wall angle pre-coated steel of size (24x24x3000 mm made of 0.40 mm thick (minimum) sheet with the help of rawl plugs at 450 mm centre to centre with 25 mm long dry wall screws @ 230 mm interval and laying 15 mm thick densified edges calcium silicate ceiling tiles of approved texture in the grid, including, cutting/ making opening “for services like diffusers, grills, light fittings, fixtures, smoke detectors etc., wherever required. Main ‘T’ runners to be suspended from ceiling using G.I. slotted cleats of size 25x35x1.6 mm fixed to ceiling with 12.5 mm dia and 50 mm long dash fasteners, 4 mm G.I. adjustable rods with galvanised steel level clips of size 85 x 30 x 0.8 mm, spaced at 1200 mm centre to centre along main ‘T’, bottom exposed with 24 mm of all T sections shall be pre-painted with polyester baked paint, for all heights, as per specifications, drawings and as directed by Engineer-in-Charge. Note :- Only calcium silicate false ceiling area will be measured from wall to wall. No deduction shall be made for exposed frames/ opening (cut outs) having area less than 0.30 sqm. The calcium silicate ceiling tile shall have NRC value of 0.50 (Minimum), light reflection > 85%, non- combustible as per B.S. 476 part IV, 100% humidity resistance and also having thermal conductivity <0.043 w/mK.

Providing and fixing of acoustic chanelled wooden panelling of perforated panels of minimum thickness of 15mm,standard length & width of 2400mm & 125mm or as per site,made of high density fiber board with minimum NRC value of 0.55,minimum density of 800 Kg/m3 density substrate with a laminated facing/wood veneer as per the approved shade/species & finish and a melamine balancing layer on the reverse side. The board shall have a perforation pattern perforation of 2mm & width of minimum 14mm of visible panel each. The panel shall provide a fire reaction of class of 1 as per Part 7 of BS 476.The panel shall be tongue and grooved or interlocking with each other for intermediate fixing & suitable approved colourd power coated aluminium beading/moulding at ends, top as per site requirement. The back of the perforated panel shall have sound absorbing non-woven acoustical fleece. The panels shall be mounted on aluminium splines/channels using clips section of appropriate size as per recommendation by manufacturer & Engineer-in-chrge.2mm thick pvc sheets shall be fixed on walls prior to fixing of panels. Make:-Embroshyal/Anutone. All complete as per the entire satisfaction and direction of the Engineer-in-charge.

CHANDAN PRAKASH

ACES DESIGN AND INFRATECH SERVICES