Execution of works in 85 Nos Schools Approved Under PDNA 2023 Repair of School Building SH Providing and Fixing Precoated Galvanised Iron Profile Sheets Roofing and Minor Repair at Govt. Primary School Nabho Block Dharampur Distt Solan HP

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.including carriage of material in all leads and lifts.

Excavation work by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soils as directed, within a lead of 50 m.All kinds of soil.including carriage of material in all leads and lifts.

Providing and laying cement concrete 1 : 2: 4 (1 cement :2 sand :4 graded stone aggregate20 mm nominal size) and curing complete excluding cost of form work in foundation and plinth including carriage of material in all leads & lifts. All work upto plinth level.1:2:4 (1 cement : 2 coarse sand) : 4 graded stone aggregate 20 mm nominal size).including carriage of material in all leads and lifts.

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. including carriage of material in all leads and lifts.

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50mm(+0.05%) total coated thickness , Zinc coating 120 grams per sqm as per IS:277, in 240mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 1518 microns using self drilling/self tappingscrews complete :

Ridges or hips plain (500 - 600mm).

Gutter/ valley (600 mm over all girth)

Structural steel work riveted ,bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete. including carriage of material in all leads and lifts.

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.In stringers, treads, landings etc. of stair cases, including use of chequered plate wherever required, all complete including carriage of material in all leads and lifts.

Painting Steel work with Deluxe Multi Surface Paint to give an even shade. Two or more coat applied @ 0.90 ltr/10 sqm over an under coat of primer applied @ 0.80 ltr/10 sqm of approved brand and manufacture.including carriage of material in all leads and lifts.