Repair replacement of existing CGI sheet and periodical services of bldg No. P 556 at Bn HQ, 35 AR

Amount

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

Providing and fixing precoated galvanised iron profile sheets (size,shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with 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. 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 Engineerin-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) 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 plain precoated galvanised steel sheet roofing accessories 0.50 mm (+0.05 %) total coated thickness, Zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete

Taking out doors, windows and clerestory window shutters (steel or wood) including stacking within 50 metres lead : of area 3 sq. metres and below.

Providing and fixing factory made uPVC door frame made of uPVC extruded sections having an overall dimension as below (tolerance ±1mm), with wall thickness 2.0 mm (± 0.2 mm), corners of the door frame to be Jointed with galvanized brackets and stainless steel screws, joints mitred and Plastic welded. The hinge side vertical of the frames reinforced by galvanized M.S. tube of size 19 X 19 mm and 1mm (± 0.1 mm) wall thickness and 3 nos. stainless steel hinges fixed to the frame complete as per manufacturer’s specification and direction of Engineerin-charge Extruded section profile size 48x40 mm

Providing and fixing to existing door frames. 24 mm thick factory made PVC door shutters made of styles and rails of a uPVC hollow section of size 59x24 mm and wall thickness 2 mm (± 0.2 mm) with inbuilt edging on both sides. The styles and rails mitred and joint at the corners by means of M.S. galvanised/plastic brackets of size 75x220 mm having wall thickness 1.0 mm and stainless steel screws. The styles of the shutter reinforced by inserting galvanised M.S. tube of size 20x20 mm and 1 mm (± 0.1 mm) wall thickness. The lock rail made up of 'H' section, a uPVC hollow section of size 100x24 mm and 2 mm (± 0.2 mm) wall thickness, fixed to the shutter styles by means of plastic/galvanised M.S. . 'U' cleats. The shutter frame filled with a uPVC multi-chambered single panel of size not less than 620 mm, having over all thickness of 20 mm and 1 mm (± 0.1 mm) wall thickness. The panels filled vertically and tie bar at two places by inserting horizontally 6 mm galvanised M.S. rod and fastened with nuts and washers, complete as per manufacturer's specification and direction of Engineer-in-charge. (For W.C. and bathroom door shutter).

Providing and fixing aluminium handles,size 100mm ISI marked, anodised (anodic coating not less than gradeAC 10 as per IS : 1868) transparent or dyed to required colour or shade, with necessary screws etc. complete

Providing and fixing aluminium tower bolts, size 100 x 10mm ISI marked, anodised (anodic coating not less than gradeAC 10 as per IS : 1868 ) transparent or dyed to required colour or shade, with necessary screws etc. complete

Providing and fixing on wall unplasticised rigid PVC pipes incl jointing with seal ring, single socketed pipes of 110 mm dia

Providing and fixing on wall unplasticised rigid PVC 110 mm bend incl jointing with seal ring, etc.

Providing and fixing on wall unplasticised rigid PVC 110 mm Single tee with door incl jointing with seal ring, etc.

Rakhal Saha (BID ID -3232761)