Tender For Special Repair To Roof Treatment Of Bldg No P-1, P-81, P-163 And P-331 Atraiwala Mil Station. ; 1 Demolition Ofexisting Roof Treatment I.E App Membrane Including Cement Mortar Screed, Brick Tiling Including Mud Mortar Or Lime Concreteand Open Up Rcc Roof Slab Including Picking, Sweeping Cleaning With Wire Brush And Washing Down With Water To Remove Dust, Dirt To Get Surface Free Of Laitance , Scales, Oil Or Any Other Loose Material And Removing Unserviceable Material, Outside Of A 1 Defence Land Complete All As Specified And Directed. Note For All Item Of Roof Treatment :- ( A ) The Work Is Required To Be Carried Out At Non-Accessible Roof For Double Storey . The Contractor Shall Make Arrangement Of Scoffolding, Safety & Security Of Workers And Arrangement For Approach To Roof. ( B ) The Rates Quoted Shall Deemed To Be Included For These Items. ( C ) The Work Will Be Measured Only After Stage Passing By Age ( I ) . 2 M&L For Pcc ( 1:2:4 ) Type B-0 ( Using 12.5 Mm Graded Stone Agg ) Mixed With Sbr Latex Liquid Polymer As Water Proofing Compoundas Per Manufacture Instructions And Finishing The Surface Even And Smooth With Out Using Extra Cement As In Roof Padding / Leveling Course Of Slope Over Roof To Receive Roof Treatment Complete All As Specified And Directed.Note :- Liquid Intergal Water Proofing Compoud Shall Be Measured And Paid Separately As Supply Only. 3 M&L For Pcc ( 1:2:4 ) , Type B1 ( 20 Mm Graded Stone Agg ) Mixed With Sbr Latex Liquid Polymer As Water Proofing Compound ( Mixed As Per Manufacture Instructions ) As In Padding / Leveling Course Of Slope Over Roof, Finished Even And Faircomplete All As Specified And Directed.Note :- Wpc ( Liquid Type ) Shall Be Measured And Paid Separately As Supply Only. 4 M / L For Pcc ( 1:1.5:3 ) , Type B-0 ( Using 12.5Mm Stone Aggregate ) As In Concrete Angle-Fillets With A Radiaus Of 75Mm Shall Be Provided At Junctions Between Roofs, Floor And Vertical Faces Of Walls ( Parapet, Pillar For Water Tank Staging ) Around Obstacles Such As Pipes, Chimney Stacks, Etc. And Other Similar Situation To Ease Up About Corners Mixed Withliquid Intergal Water Proofing Compoud As Per Manufactur Direction ) Note :- Liquid Water Proofing Compound Will Be Measured And Paid Seperately. 5 Supply Only Sbr Latex Liquid Polymer Of Approved Make Complete All As Specified And Directed. 6 M&L Forone Coat Of Cement Slurry Admixed With Acrylic Bonding Compound Sbr Latex Liquid Polymer ( Slurry Will Be Prepared As Per Manufacturer Direction ) As To Be Used For Bonding Of New Concrete / Mortar To Old Surface. Note :- ( I ) The Work Is Required To Be Carried Out At Non-Accessible Roof For Double Storey . ( Ii ) The Contractor Shall Make Arrangement Of Scoffolding, Safety & Security Of Workers And Arrangement For Approach To Roof . ( Iii ) The Rates Quoted Shall Deemed To Be Included For These Items. 7 M&L For Water Proofing Treatment To Non-Accessibleroof Slabwith App Based Modified Polymeric Membrane As Per Manufacturer’S Instructionswith Following Course Of Description Below :- ( A ) Applying A Priming Coat Of Bituminious Primer @ 0.30 Kg / Sqm, Till The Surface Is Properly Impregnated. ( B ) Providing App Based 5 Layer Polymeric Membrane Minimum Weighing 3.6Kg / Sqm And Minimum 3Mm Thick Reinforced With Polyester Non-Woven Fabric ( Weight Not Less Than 150 Gms / Sqm ) Centre Core, Laid On Primed Surface By Forced Applications As Per The ManufacturerS Instructions With Side Over Lap Of 75 Mm And End Overlap Of 100 Mm. All Overlap Joints Shall Be Sealed Thoroughly By Thermo Fusing Both The Membrane Layer ( Torching Overlap By Propane Or Butane Gas Torch ) And Sealing It With The Help Of Hot Trowel. The Overlap Joints Shall Be Made As A Monolithic Layer ( C ) Apply Two Coat Of Bituminous Aluminium Paint @ 0.20 Kg / Sqm Over App Membrance 8 Note : ( I ) The Work Of Water Proofing Treatment Shall Be Got Executed Through Authorised Applicator Of The Manufacturer Only And 10 Year Company Back Warranty To Be Submitted By Contractor. ( Ii ) The Work Is Required To Be Carried Out At Non-Accessibleroof Slab For Double Storeyed.The Contractor Shall Make Arrangement Of Scaffolding, Safety And Security Of Workers And Arrangement For Approach To Roof . The Rates Quoted Shall Deemed To Be Included For These Items. 9 S&F In Repair Rotational Moulded Polyethylene Water Storage Tank 1000 Liters Capacity, Double Layer ( Isi Marked ) Construction ( Cylindrical Vertical Closed Top ) , Hoisted & Fixed In Position Includings&F 20 Mm Diaballvalves, High Pressure Of Epoxy Coated Aluminium Rod And High Density Plastic Ball Complete Including Check Nut And Suitable Nipple, Screwed For Iron Pipes Or Brasas Ferrule Complete All As Specified And As Directed. 10 Taking Up Or Down Steel Water Tubing And Connections Including Cleaning For Refixing Or Removing To Store 20 Mm Dia Bore All As Specified And Directed.. 11 M&L For Mild Steel Galvanized Steel Tubing Of 20 Mm Bore ( Isi Marked ) With Screwed Socket Joints, Medium Grade, Together With All Fittings Heavy Duty ( Isi Marked ) ( Such As Bends, Elbows, Tees, Short Pieces, Connectors, Back Nuts, Diminishing Pieces, Caps, Plugs And Unions Etc. ) And Fixed Complete To Walls And Ceiling With Clips, Wall Hooks, Wooden Plugsor Laid In Floors Complete All As Specified And Directed 12 Refixing Old Steel Tubing Of 20 Mm Bore And Connections In New Or Old Position ( Walls, Ceilings, Floors Etc. ) Together With All Fittings Heavy Duty ( Isi Marked ) ( Such As Bends, Elbows, Tees, Short Pieces, Connectors, Back Nuts, Diminishing Pieces, Caps, Plugs And Unions Etc. ) And Fixed Complete To Walls And Ceiling With Clips, Wall Hooks, Wooden Plugsor Laid In Floors Complete All As Specified And Directed 13 S & F In Repairs 20 Mm Dia Bore Gun Metal Globe Or Gate Valve With Iron Wheel Head Screwed Both Ends For Iron Pipe All As Specified And Directed. 14 Demolition Of Brick Work Built In Cement Mortar In Any Description And Position Complete All As Specified And Directed. 15 M&L For Brick Work With Sub-Class `B Bricks, Straight Or Curved On Plan Exceeding 6 M Mean Radius Built In Cm ( 1:6 ) All As Specified And Directed. 16 Taking Down Cement Plaster In Any Thickness From Brick Or Stonewalls , Ceiling, Facia Etc Including Raking Out Joints, Hacking For Key, Scrubbing Down With Water Etc Including Removal Of Rubbish, Vegetation Etc Outside Complex ( Mod Land ) Complete All As Specified And Directed. 17 M&L For Rendering 15 Mm Thick On Fair Faces Of Brick Work Or Concrete Walls Surfaces In Cm 1:6 Finishedeven & Smooth Withoutusing Extra Cement .All As Specified And Directed. 18 M&L For Preparation Of Surfaces Of New Plaster On Wall And Applying Two Coats Of Cement Base Paint Over A Coat Of Alkali Resitant Primecomplete All As Specified And Directed. 19 M & L For Plain Cement Concrete ( 1:4:8 ) , Type D2 ( Using 40 Mm Graded Stone Aggregate ) As In Sub Base Of Flooring / Hard Standing / Footpath All As Specified And Directed.
