|
| 1 | Dismantling roofing including ridges, hips, valleys and gutters etc i.e. Removing Existing Mangolore tiles/ AC / Gl/ Aluminium/ Galvalume Sheets/ polycarbonate plain and corrugated sheets from roof/ cladding/ partition etc., excluding supporting structure but including, handling, transporting, sorting and stacking of unusable/ scarp sheets within RCF premises or disposing etc complete as directed. |
| 2 | Refixing existing material after sorting and cleaning, removed from the existing structure as discribed in Item no. 1 using 8m dia polymer coated iron L or J hook bolts, galvanized iron & bituminous washers, or self drilling fastners and EPDM washers, galvanized iron clamps, nuts and bolts including sealing the existing holes with suitable material etc. complete and as directed. (Net Area covered by sheeting will be measured. Overlaps will not be paid separately) |
| 3 | Providing and fixing 6 mm thick Non-asbestos high impact Polypropylene reinforced cement corrugated sheet of approved make conforming to IS: 14871-2000 laying the same in position as per the stipulation in IS: 3007-1991 using 8m dia polymer coated iron L or J hook bolts, galvanized iron & bituminous washers, or self drilling fasteners and EPDM washers, galvanized iron clamps, nuts and bolts etc. complete and as directed. (Net Area covered by sheeting will be measured. Laps will not be paid separately) |
| 4 | Extra over item no.3 for use of colour coated sheets (sheets to be used as factory colour coated or colour coating done at site as directed by using single coat of approved primer and two coats of anti-algal,anti-fungal,exterior paint by using acrylic based exterior paint with silicone addities at one side of sheet. |
| 5 | Providing and fixing non-asbestos fiber cement high impact polypropylene reinforced roofing accessories in all colours with polymer coated J or L hooks, bolts and nuts and or G.I. seam bolts and nuts, G.I. plain and bitumen washers or with self drilling fastener and EPDM washer etc. complete as directed. Corrugated serrated adjustable ridges in pair/corners/barge boards/apron,etc. |
| 6 | Providing and fixing in position UV resistant, fire retardant, virtually unbreakable and temperature resistant (-40° C to +130° C) Polycarbonate corrugated sheet of 2mm thickness for roof of approved make to match the roof profile at any height with G.I. J hooks bolts of G.I. clamps nuts & bolts or with self drilling fastener and EPDM washer etc. complete as directed. (corrugated/traffoid sheet of approved make to mathc with other sheets) |
| 7 | Providing & fixing UV stabilised fiberglass reinforced plastic sheet roofing up to any pitch, including fixing with polymer coated \"J\" or \"L\" hooks, bolts & nuts 8mm dia. G.I plain/bitumen washers complete but excluding the cost of purlins, rafters, trusses etc. The sheets shall be manufactured out of 2400 TEX panel rovigs incorporating minimum 0.3% ultra-violet stabiliser in resin system under approximately 2400 psi and hot cured. They shall be of uniform pigmentation and thickness without air pockets and shall conform to IS 10192 and IS 12866.The sheets shall be opaque or translucent, clear or pigmented, textured or smooth as specified. (1.50 mm thick coloured F.R.P. corrugated sheet of approved make to match with other sheets) including erection derection of required scaffolding. |
| 8 | Providing and fixing single skin trapezoidal profiled sheeting 930 -1020mm cover width 28-32 mm crests depth at 186-250 c/c ( above 195 mm c/c crest distance there will be minimum 2 ribs at the centre for stiffening). The feed material shall be manufactured from AZ 150 (min. 150 gms/sq.mt total on both sides) Zincalume / Galvalume sheets of minimum yield strength of 550 MPa, 0.45 mm BMT, ( 0.5 mm TCT excluding paint coating thickness), metallic hot dip coated with Al-Zn alloy (55% Aluminium, 43.5% Zinc, 1.5% Si ) as per AS 1397 / IS15961 & painted with Super Durable Polyester Colorbond steel XRW or equivalent quality paint system of apporved color, suitable for exterior application conforming to AS/NZS 2728:2007 type-4 / IS15965: class3 of approved make. The sheet shall have a total coating thickness of 35 microns, super durable polyester paint system of 20 microns on exposed surface and 5 micron reverse polyester coat on back surface over 5 micron primer coat on both surfaces. The paint system shall have stable inorganic pigments for color durability. The product will be fastened using no.12-14x55 mm (or as per design requirement ), mechanically coated with 25 micron Zn-Sn alloy or hot dipped zinc coated with min 40 micron hex self-drilling fasteners with EPDM washer of approved make confirms to AS3566:2002 class 3. Including erection de-erection of required scaffolding. |
| 9 | Providing, detailing, fabricating and fixing at desired location using hot rolled sections and MS Plates of grade Fe 250 as per specifications and approved fabrication drawings (which are to be prepared by Contractor and got approved from Engineer), transporting to site and erecting structural steel members for all heights & at all levels including provision of necessary erection bolts, fixing bolts, nuts, washers, cleats, stiffeners, gussets, base plate, and all necessary fixtures and operations like preheating as per specifications, straightening, bending, cutting, drilling, grinding, machining if specified, welding, grinding and removing the welding burr and preparing surface for painting with wire brush cleaning and applying two coats of epoxy red oxide zinc phosphate primer of 30 microns each and two coats of Epoxy Corrosion Resistant Enamel paint of 30 microns after fabrication including touching up with spray painting after erection etc complete as directed by Engineer In Charge.(The qty. for this item shall be measured for gusset plates, base plates, bolts in M.T.) Steel Make- TATA,JSL,SAIL,WiZAG. |
