Renovation of school building of GSSS Mohanpura under Marine Section, SD-II, SVPND, APWD, Sri Vijaya Puram

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of:

G.S. Sheet

Asbestos Cement sheet

Dismantling cement asbestos or other hard board ceiling or partition walls including stacking of serviceable materials and disposal of unserviceable materials within 50 metres lead.

Providing and fixing pre-painted galvalume (PPGL) steel profile sheets AZ-150 of brand of Tata blue scope Steel/Everest Industries Limited, JSW Steel Limited, Jindal India Limited or or equivalent (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.50%), total coated thickness with aluminium zinc coating 150 gsm as per IS: 277 in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws (Xylan) of size (5.5x 55mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing Pre-Painted galvalume (PPGL) steel profile sheets AZ-150 of brand Tata Blue Scope stee, Everest industries Ltd, JSW Steel Ltd, Jindal Steel Ltd or equivalent make roofing accessories 0.50 mm (+0.50%) total coated thickness, Zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete

Ridges Plain (500-600mm)

Extra for providing and fixing wind ties of 40x6mm flat aluminium section

Providing and fixing in position eaves or facia board with 12mm thick WPC board of aproved quality and 30cm wide including nailing etc complete as per the direction of Engineer-in-charge.

Renewing wooden beams in roofs including making good the holes in walls and painting with oil type wood preservative of approved brand and manufacture complete including removal of rubbish to the dumping ground within 50 metres lead :

Not exceeding 4.00 metres in length. Superior hardwod cat-II (A)

Providing and fixing M.S. fan clamp type I or ll of 16 mm dia M.S. bar, bent to shape with hooked ends in R.C.C. slabs or beams during laying, including painting the exposed portion of loop, all as per standard design complete.

Providing and fixing powder coated aluminium work (minimum thickness of powder coating 50 micron) consisting of tee/ angle sections, of approved make conforming to IS : 733 in frames of false ceiling including aluminium angle cleats with necessary C.P. brass/ stainless steel sunk screws, aluminium perimeter angles fixed to wall with stainless steel rawl plugs @ 450 mm centre to centre and fixing the frame work to G.I. level adjusting hangers 6 mm dia. with necessary cadmium plated machine screws all complete as per approved architectural drawings and direction of the Engineer-in-charge (level adjusting hangers, ceiling cleats and expansion hold fasteners to be paid for separately).

Providing and fixing 6 mm dia. G.I. level adjusting hangers (upto 1200 mm length), fixed to roof slabs by means of ceiling cleats made out of G.I. flat 40x3 mm size 60 mm long and stainless steel expandable dash fastener of 12.5 mm dia and 50 mm long, complete as per direction of Engineer- in-charge.

Providing and fixing plain multipurpose cement board(Hight pressure steam cured) with suitable screws for cement particle board in ceiling etc. complete (frame work to be paid seperatately).

6 mm thick Cement fiber board, Type-B, Category-III as per IS: 14862 :2000

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