Re-roofing over the existing roof and repairs to false ceiling of commercial cum Administrative building of Sankhali Municipal Council

Amount

Dismantling G.I. sheets roofing including ridges, hips valleys and gutters etc. and stacking the material within 50 meters lead.

Steel work in built up tubular (round,square or rectangular hollow tubes etc.)(Square Hollow Section (SHS) IS4923 /Rectangular Hollow Section (RHS) IS4923/Circular Hollow Section (CHS) IS1161 closed Structural Steel of (SAIL, TATA. VIZAG, JSW ,APOLLO Steel Ltd.) make (Min Yeild Stress 310 Mpa)) trusses etc.,including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.

Providing and fixing colour coated galvulium roofing sheets of 0.5mm thickness including all the accessories (TATA make) but excluding the cost of purlins, rafters, trusses, flashings etc. complete as per the directions of the Engineer in charge.

Add for providing & fixing Flashings -[Corners, Ridges, valleys, gable end & Trims] (Girth upto 610mm) including all the accessories complete as per the directions of the Engineer in charge

Providing and fixing Prince or equivalent make PVC SWR half round eaves gutter with bolts, nuts and flat iron brackets 40 x 3 mm size complete. B.180 mm nominal size

Providing and fixing PVC SWR pipes confirming to IS 13592 type A including jointing with seal ring confirming to IS5382 leaving 10 mm gap for thermal expansion.b Single socketed pipe 110 mm dia

Painting two or more coats (excluding priming coat) with superior quality ready mixed paint for steel work of approved brand & manufacture in all shades on new work to give an even shade.

Providing and fixing clear corrogated 2 mm thickness including all the accessories (TATA make) but excluding the cost of purlins, rafters, trusses, flashings etc.complete as per the directions of the Engineer in charge.

Providing and fixing M/F suspended ceiling ( single layer) which includes providing & fixing GI perimeter channels of size .55mm thk having one flange of 20mm and another flange of 30mm and a web of 27mm along with perimeter of ceiling, screw fixed to brick wall and partition with the help of nylon sleeves and screws at 610mm centres. Then suspending GI intermediate channels of size 45mm, 0.9mm thk with two flanges of 15mm each from the soffit at 1220mm centres with ceiling angle of width 25mmx10mmx0.55mm fixed to soffit with GI cleatand steel expansion fastners. Ceiling section of 0.55mm thickness having knurled web of 51.5mm and two flanges of 26mm each with lips of 10.5mm are then fixed to the intermediate channel with the help of connecting clips and in direction perpendicular to the intermediate channel at 457mm centres. 8mm tappered edge calcium silicate Board is then screw fixed to ceiling section with 25mm drywall screws at 230mm centres. Screw fixing is done mechanically either with screw driver or drilling machine with suitable attachment.

Sirajuddin Beig (BID ID -44465)