Repair of roofing residential accommodation and Goat Shed at CFL, Arong.

Amount

Steel work in built up G.I pipe trusses etc., including cutting, hoisting fixing in positiom and applying a priming coat of approved steel primer, including welding and bolted with special shaped washed etc, complete.

Electric resistance or induction butt welded G.I pipe

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 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, 5-7 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)

Barge board (Upto 300 mm)

Gutter (600 mm over all girth)

Providing and fixing G.I Works welded in built up section frame works including cutting, hoisting fixing in position and applying a priming coat of approved steel ptomer using GI angle as required height up to 70 ft (21.34 m) including strutting etc. all operation complete.

Providing and fixing aluminium wind ties 40x6 mm flat.

SAKTHI BUILDERS

R N CONSTRUCTION