Tenders Are Invited For Roof Insulation Work – Pw8 Ve321 Dacharbeiten

Roof Insulation Work – Pw8 Ve321 Dacharbeiten. Originally, Insulation Was Installed On The Top Floor Of The Existing Building, Followed By Concrete Topping As Gradient Concrete With A Gradient Of 2-5% And Then Sealed With Bitumen Welding Membrane. As Part Of The Extension, This Existing Structure Will Be Completely Demolished Except For The Upper Bare Ceiling. The New Roofs Of The Two Residential Wings Will Initially Be Formed As New Glued Laminated Timber Ceilings In Their Supporting Structure And Will Then Be Designed As Flat Roofs With External Drainage And A Roof Overhang. A Welded Vapor Barrier On A Separating Layer Is Applied To The Glued Laminated Timber Ceiling. The Flat Roof Is Then Designed With A Gradient Of Approx. 2-3% In The Form Of Pressure-Resistant Gradient Insulation. The Insulation Layer Is Provided With A Bituminous Roof Sealant In Accordance With The Flat Roof Guidelines And A Layer Of Gravel Is Applied On Top To Protect Against Solar Radiation And Mechanical Damage. On The Eaves Of The Residential Wings, The Roof Overhangs Are Provided With A Surrounding Rain Gutter And Covered. A Pv System Is Planned In The Roof Area Of ​​Each Of The Two Residential Wings. Necessary Penetrations (Underground Pipe Ventilation, Exhaust Air Ducts, Connections To Pv Systems) Must Be Carefully Routed Over The Bituminous Roof Skin And Sealed In It. The Connector Is Designed As A Flat Roof With Parapet And Internal Drainage. The New Ft Ceiling Construction Of The Connector Forms The Basis Of The Roof Construction. This Will Be Provided With A Bituminous Roof Seal In Accordance With The Flat Roof Guidelines. The Connection Points Such As Inlets, Emergency Overflows And Vents Are Designed According To Requirements. Access To The Roof Is Via A Roof Hatch In The Area Of ​​The New Connector, Which Also Serves As An Rwa System To Extract Smoke From The Stairwell. The Transition Between The Façade/Roof In The Area Of ​​The Connector Is Achieved By Installing Suitable Roof Edge Profiles Or By Installing Insulated, Metal-Clad Attic Structures That Are Incorporated Into The Roof Sealing. Due To The Short Distance To The Library, The Building Must Be Designed With A Hard Roof. With The Exception Of The Connector, The Drainage Of The New Roofs Is Carried Out As External Drainage On A Free Gradient (Gravity Pipe). Roof Drainage Takes Place Externally In The Area Of ​​The Residential Areas And Internally In The Area Of ​​The Connector Via A Predefined Inlet Point And A Sufficiently Dimensioned Emergency Drainage.