Replacement Of Gutter In Maintenance Workshop In Cpcl Manali Refinery , Dismantling And Removal Of Existing Gutters In Roofing Including Supply Of All Tools & Tackles , Consumables , Cutting ( By Flame Or Saw ) Of Fixing Hooks , Transporting And Stacking The Serviceable Materials , Cleaning The Site And Disposal / Handing Over Of The Unserviceable Material To Scrap Yard Anywhere Within The Refinery Premises , Including All Labour , Tools Supervision , Height Work / Safetypermits , Safety Precaution All Complete For All Levels ( Excluding Scaffolding ) , As Specified And Directed By The Eic . Scaffolding Shall Be Paid Separately . , Providing Valleys ( Gutters ) Of 45 Cm Wide Overall In Galvalume Sheet Of Total Coated Thickness ( Not Less Than ) 0 . 5 Mm Of Approved Make , Fixed With Ss / Aluminium Alloy J , Or L Hooks , Bolts &Nuts 8Mm Dia G . I . Limpet And Bitumen Washers , Including Supply And Erection Of Suitable G . I . Brackets Of Thickness 10 Mm At 650 Mm Spacing , Provisions For Rain Water Pipe Outlet ( Hopper Head ) / Sealing , All Labour , Tools Supervision , Height Work / Safety Permits , Safety Precaution All Complete For All Levels ( Excluding Scaffolding ) , As Specified And Directed By Eic . Nominal Composition Of The Coating Is 55% Aluminum , 43 . 5% Zinc And 1 . 5%Silicon By A Continuous Hot Dip Process . Corrosion Inhibitive Primer And A Top Coat Should Have Been Applied Oneither Side Of The Sheet . Scaffolding Shall Be Paid Separately . , Providing Valleys ( Gutters ) Of 60 Cm Wide Overall In Galvalume Sheet Of Total Coated Thickness ( Not Less Than ) 0 . 5 Mm Of Approved Make , Fixed With Ss / Aluminium Alloy J , Or L Hooks , Bolts &Nuts 8Mm Dia G . I . Limpet And Bitumen Washers , Including Supply And Erection Of Suitable G . I . Brackets Of Thickness 10 Mm At 650 Mm Spacing , Provisions For Rain Water Pipe Outlet ( Hopper Head ) / Sealing , All Labour , Tools Supervision , Height Work / Safety Permits , Safety Precaution All Complete For All Levels ( Excluding Scaffolding ) , As Specified And Directed By Eic . Nominal Composition Of The Coating Is 55% Aluminum , 43 . 5% Zinc And 1 . 5%Silicon By A Continuous Hot Dip Process . Corrosion Inhibitive Primer And A Top Coat Should Have Been Applied Oneither Side Of The Sheet . Scaffolding Shall Be Paid Separately . , Providing , Erection & Dismnatling Of Scaffolding ( External ) : Job Involves Erection Of Scaffolding At The Required Locations Using 1-1 / 2Inch Dia Steel Tubular Pipes With Suitable Clamping Arrangement , Providing Steel Gratings , Access Staircase System At Required Locations Firmly Tied On To The Scaffolding Pipes , Removal Of The Steel Gratings & Scaffolding Materials On Completion Of The Job . The Job Shall Be Carried-Out As Per Cpcl Scaffolding Procedure . The Job Also Includes Supplying Of All Types Of Tools & Tackles , Lifting Arrangements Likechain Pulley Blocks , All Consumables And Labour To Complete The Job Inall Respects , Supply & Transportation Of Steel Scaffolding Materials &Steel Ratings To The Work Site Etc . Complete As Per Directions And Approval Of Engineer-In-Charge . The Payment Will Be Made Once Irrespective Of Duration Of Scaffolding . ( To Be Used For Maintenance Work Judicially , Necessary Deduction For Scaffolding In The Existing Item To Be Done . )