Tenders Are Invited For Renovation Of The Roof, Attic Ceiling And Chimneys With The Replacement Of The Roof Covering Of A Residential Building At Ul. Dolna 35 In Warsaw (Stage I)

The Subject Of The Order Is The Renovation Of The Roof, Attic Ceiling And Chimneys, Including The Replacement Of The Roof Covering Of A Residential Building At Ul. Dolna 35 In Warsaw (Stage I). The Scope Of Works Includes: Roof Renovation. Demolition Works: - Demolition Of The Existing Roofing Felt, - Demolition Of The Existing Full Formwork, - Demolition Of The Existing Roof Hatch, - Assessment Of The Technical Condition Of The Roof Truss. Construction Works: - Replacement Of Damaged Roof Truss Elements. The Final Qualification Of The Wooden Elements Of The Roof Truss For Replacement Should Be Made After Dismantling The Roof Covering And The Board Sheathing, - Making A New Roof Sheathing From Thick Boards. 25 Mm, - Installation Of A New Covering With Thermally Weldable Felts (Underlay Felt, Top Covering Felt, Use 10 Cm X 10 Cm Isoclines In The Corners), - Re-Building Of The Knee Wall, - Installation Of Sewage Vents, - Installation Of A Roof Hatch, - Installation Of Chimney Sweep Benches, - Installation Of Flashings. Sheet Metal Work. Renovation Of The Attic Ceiling - Removing Plaster, - Strengthening The Ceiling Beams With A Steel Channel, - Laying Osb Boards Or Boards. Renovation Of Chimneys - Knocking Down 100% Of The Plasters, - Plastering The Chimney Facades With Cement Plaster Reinforced With Steel Mesh, - Painting With White Silicone Paint, - Demolition Of Existing Chimney Caps, - Construction Of New Chimney Caps Made Of Reinforced Concrete. Min. 12 Cm Reinforced With A Mesh Of Ø 8 Mm Bars Every 10 Cm, - Making A Layer Of Roofing Felt From Above, - Making Sheet Metal Flashings. Lightning Protection Installation - Making A Grid Of Horizontal Air Terminals On The Roof From Galvanized Steel Wire Dfezn Ф 8 Mm, - Using Chimney Spiers In Accordance With The Pn En Standard 62305 To Protect Elements Protruding Above The Roof Surface, - Connect The Discharge Wires With The Air Terminal Grid On The Roof Using Screw Clamps, - Make The Discharge Conductors From Dfezn Ф 8 Mm Galvanized Steel Wire, Run In An Insulating Lightning Protection Tube, Under The Plaster In The Facade Layer, - Connect The Discharge Conductors With The Cables Earthing Connections Should Be Made Using Control Connectors In Test Boxes, - The Grounding Conductors From The Earthing Electrode To The Control Connectors Should Be Made Of A Galvanized Steel Flat Bar Fezn 30X4 Mm, Placed Under The Plaster In A Lightning Protection Insulating Pipe, - For The Lightning Protection Installation, Vertical Earthing Rods Are Typical, Made Of Galvanized Steel Rods, Min. Ф20mm, - The Resistance Of The Earth Electrode For The Needs Of The Lightning Protection Installation Should Not Be Higher Than 10Ω, - The Method Of Implementing The Lightning Protection Installation Is Shown In Figure E-18. Others Specified In Swz.