Lindner Hotel Am KuDamm, Berlin
Client
Owner / Developer
Architect
Building Function
Status
GEBAU Technik GmbH
Owner / Developer
DIFA Deutsche Immobilien Fonds AG
Architect
Bellmann & Böhm Architekten
Building Function
Hotel
Status
Completed 04/2004
Facade Scale
Height
Technical Features
approx. 4.000 m²
Height
approx. 22 m
Technical Features
- Sound insulation windows in historical appearance
- Integration of existing natural stone matching spandrels
- Colour uniformity with reduced reflection values for sun protective and thermal insulating glass
- Stick system facade
- approx. 4.000 m² heritage-protected facade
We provided
Consultancy
Sound facade decisions start with a clear understanding of the project’s starting point.
- Priedemann organises the available project information, design intent, use, and facade-related technical and external requirements.
- Together with the project participants, objectives, priorities, constraints and unresolved questions are made visible.
- This creates a reliable basis for the next design steps and for decisions before the facade concept is developed in greater detail.
- Priedemann identifies and structures the project information, requirements, objectives and constraints relevant to facade planning.
- These may include design intent, use, technical and energy-related requirements, local conditions, and quality, cost and programme objectives.
- Unresolved questions, dependencies and competing priorities are made explicit and translated into clear decision criteria.
- This creates a reliable basis for early facade design and subsequent planning.
- The subjects reviewed and documented depend on the project stage and agreed scope.
Decision criteria and priorities
- Not every facade requirement has the same priority within a project.
- Design intent, use, technical requirements, local conditions, quality, cost and programme objectives can influence one another.
- Establishing the project basis therefore also means structuring these requirements and making potential conflicts visible.
- The resulting criteria provide a shared basis against which later options and decisions can be assessed consistently.
Priedemann offers comprehensive knowledge of materials, types of construction and construction methods for assessing the quality and value of the inventory with minimized depth of interference with the material.
Taking into account listed buildings, economic and design requirements such as preservation of individual details, renovation during ongoing operation, gutting with new extension, etc., we develop targeted renovation concepts for the facade on the basis of precise measurements as well as material, strength and load-bearing capacity analyses.
Early facade design begins once the strategic objectives and principal requirements of a project are sufficiently understood for possible directions to be developed.
- Priedemann translates this basis into options for design, materials and construction, considered alongside technical requirements and project-specific constraints.
- The comparison makes differences and trade-offs visible, and a preferred direction is developed further.
- The purpose is not to complete the technical detailing, but to establish a traceable design basis for subsequent development.
- The criteria, sketches and documentation included depend on the project and agreed appointment.
- Early facade design develops possible design, material and construction directions from the project objectives and requirements.
- Priedemann considers relevant facade types, principle details, interfaces, and technical and operational requirements.
- Options are described clearly and compared against agreed criteria.
- This allows architectural intent, technical viability and project-specific implications to be assessed together.
- The outcome is a robust design direction that provides a basis for subsequent system development and technical design.
Technical facade design develops an agreed facade solution into coordinated technical information for implementation.
- Details, components, connections and interfaces are brought together with requirements for construction, materials, building physics, acoustics, fire and safety.
- The required level of development depends on the project, procurement model and appointment.
- This creates a consistent basis for subsequent shop, production and installation planning.
- Technical facade design develops an agreed facade solution in sufficient detail for subsequent implementation.
- Depending on the appointment, Priedemann develops principle details, connections, layers, components, materials and dimensions, and coordinates interfaces with adjacent construction.
- Structural, building-physics, acoustic, fire and safety requirements are considered to the agreed design depth.
- The result is coordinated design information that can provide a basis for shop, production and installation drawings.
- The precise scope is defined for each project.
Facade specifications and tender documentation translate developed facade design into clear technical requirements for tendering and bid comparison.
- Priedemann structures information on construction, materials, details, interfaces and quality criteria and brings the relevant design documents together.
- Depending on the project, this can include technical preliminaries, specifications, quantity information or trade boundaries.
- The scope and function of the documents depend on the procurement and responsibility model.
- Priedemann translates the agreed facade design into technical specifications and tender documentation.
- Requirements, quality criteria, materials, components, interfaces and required evidence are structured and described clearly.
- Depending on the appointment, quantities, component schedules and other technical appendices may be included.
- The documents provide a consistent technical basis for bids and the subsequent award process.
- The scope and responsibility for the complete tender package are agreed with the client.
The supervision of assembly and installation is particularly important for us, to ensure the agreed quality. Our principle is that deviations from the agreed planning must be identified at an early stage, documented and the implementation corrected. This controlling refers both to production and manufacturing as well as to the assembly on the building site:
Regular inspection of production and assembly in the factory- Verification of compliance with the approved design, ensuring compliance with the agreed qualities, standards and test series
- Regular reporting on production progress; the reports contain recommendations for possible improvements as well as a list of unfulfilled services, performance arrears, defects identified
Regular inspection at the building site
- Verification of compliance with the approved design, ensuring compliance with the agreed qualities, standards and test series
- Inspection of examples of facade sections as reference values for determining the quality of workmanship – benchmark inspections
- Involvement in performance tests on the facade on the building site (water impermeability, sound insulation, blower door test, etc.)
- Random inspection of the installation work on the building site
- Regular reporting on the installation work including the identification of discrepancies with the original planning
Specials
Thermal building physics connects the facade build-up with the building’s energy and building-physics requirements.
- Priedemann investigates thermal protection, glazing, solar control, insulation, thermal bridges and condensation risk.
- Relevant performance values and material build-ups are determined from local and project-specific requirements.
- Where commissioned, values from the facade and building services also contribute to the overall energy balance of the building.
- Priedemann assesses the thermal performance of facades and develops suitable component and layer build-ups.
- This can include calculating U-values and g-values, insulation thicknesses, isotherms, two- or three-dimensional thermal bridges, surface temperatures and condensation risk.
- Depending on the appointment, component catalogues are prepared and values from the facade and building services are combined for the building’s overall energy balance.
- The findings support decisions on thermal protection, materials, glazing, solar control and technical detailing.
Facade performance and building energy
- Thermal assessment does not always stop at an individual facade component.
- Depending on the appointment, values from the facade and building services can be combined when considering the building’s overall energy balance.
- Isotherms, thermal-bridge calculations and surface temperatures can also show where construction details become critical and where condensation risk may arise.
- Thermal building physics therefore connects individual material and detailing decisions with the wider energy performance of the building
Memberships
