Tenders Are Invited For Roof Insulation Work – Dlr Location Zittau, Gi New Office Building. Test Hall Di, Roof Work On Bicycle Shelter (26-0060_B)

Roof Insulation Work – Dlr Location Zittau, Gi New Office Building. Test Hall Di, Roof Work On Bicycle Shelter (26-0060_B). Construction Of A Van And Bicycle Shelter (Roof): 580 M² Work And Protective Scaffolding Sw 09, 225 M² Eps Gradient Insulation, 225 M² 2-Layer Bituminous Sealing, 225 M² Extensive Flat Roof Greening, 55 M Rope Safety System, 82.5 M Parapet Cover Made Of Aluminum, 18.5 M Rainwater Downpipes Execution Period: Expected August 2026 - September 2026 The Work Specified In The List Of Services - Scaffolding, Slope Formation, Sealing Work, Extensive Roof Greening And Installation Of Roof Drainage - Form A Technically And Functionally Inseparable Unit For Producing A Functional Roof Structure. The Services Are Closely Interlinked In Their Sequence And Execution And Require Continuous Technical Coordination. Technical And Functional Dependencies (Combination Of Compartments): • The Slope Formation, Sealing And Roof Greening Must Be Carried Out In Direct Coordination With One Another, As They Together Form The Complete Roof Structure And Are Mutually Dependent. • The Roof Drainage Is An Integral Part Of The Waterproofing System And Must Be Integrated And Checked During The Waterproofing Work. • Scaffolding Is Required For All Work Steps And Must Be Precisely Coordinated With The Roof Work In Terms Of Service Life, Load Class And Positioning. • In Addition, Green Roof Systems Usually Start With The Sealing, Which Is Carried Out By The Roofer. Allocation Into Separate Lots Could Lead To Different System Structures. This In Turn Poses Significant Warranty Problems In The Event Of Damage, As Responsibilities Cannot Be Clearly Defined. Risks When Dividing Into Specialist Lots • Separating The Trades Would Lead To Significant Interface Risks, Particularly With Regard To Moisture Protection, Functional Reliability And Warranty Definition. • Coordinating Multiple Contractors Would Make The Construction Process Significantly More Difficult And Poses An Increased Risk Of Delays And Defects In The Roof Structure. Safety Or Approval Specifications (Product Specifications): Certain Products Have The Necessary Certificates Or Building Regulations Approvals, For Example In This Case Fall Protection With Approval For A Specific System. A Specific Product Specification Is Required For The Tendered Security System, As The Required Systems Have Manufacturer-Specific, Non-Transferable Building Regulations Approvals As Well As System-Related Test And Application Certificates. These Only Apply To The System Configuration Being Tested. A Tender With Lead Brands Would Entail The Risk Of Different Approval Bases And Thus A Non-Standard Design. The Specific Product Specification Is Therefore Objectively Justified By The Subject Matter Of The Order.