Rear-ventilated cladding for exterior walls

Define the objectives of the preliminary project:

• cost planning and cost optimisation
• input labels (GWP) based on area division and types

The architect draws up various options and discusses them with the specialist planners.

• 1.2.1 Construction options for the civil engineer
• 1.2.2 Construction options for the building physicist
• 1.2.3 Construction options for the facade planner

The client reviews the various options and approves the options to be developed. The decision on the options is made on the basis of drawings/sketches, reference projects and evaluated using a matrix. This includes, among other things, benchmark figures for CO2, GWP, etc.

The client defines the type of commission, e.g. individual commission, general planning, etc.

• Basic design and openings schematic

Generic requirements

• Building location
• Quantities / volumes (base quantities) as a base for cost estimate / cost projection and GWP calculation
• Typification of facade element
• Total area of windows (transparent surfaces), doors, wall structures (assignable surfaces)

Project-specific requirements – not included in the Information Delivery Specification (IDS)

• Fire protection requirements – in consultation with the Swiss Cantonal Fire Insurers Associatio

Note:

• CO2 equivalents for Global Warming Potential (GWP) are taken from the environmental product declarations (EPDs) and are not included in the model. The GWP calculation is carried out using the corresponding tools

Export of quantities with corresponding parameters
Extension with project-specific requirements (e.g. fire protection)

The architect coordinates the options chosen by the client together with the specialist planners.

Specification of mounting surface and deflections. Document in planning concept without information from model. 

The building physics planning parameters are coordinated and created with all the planners required for the specific project.

Examples:

• Energy certificate and definition of u-values and g-values, shading requirements, max. glass proportion
• Sound insulation specifications
• Sealing requirements

Note:

• This use case does not include project-specific data, which must be added individually.

• Check whether all the necessary specifications are available and whether the requirements (e.g. building regulations and project-specific requirements of the client) are fulfilled.

• Technical coordination of all aspects

Enhancement of the model with geometrically coordinated bases and specifications for material qualities (materialisation)

• Load-bearing structure, floor slabs, wall structures, window, openings

• material specifications

• Design development incl. requirements for rear ventilation, fire protection, etc.
• 2D documentation without model referencing
• Checks variants 1-n

Documentation delivery:

• Guiding details book / 2D sections (pdf)
• Usage agreement
• Cost estimimation
• Technical report

Note:

• In general, work in this step is still done in 2D. It is also possible to continue working in the ARC models.

• same as1.10 including referencing of the sections in the model

Note:

• This step is optional and represents an additional service.

• Check whether all the necessary specifications are available and whether the requirements (e.g. building regulations and project-specific requirements of the client) are fulfilled.

Performance coordination

• Geometrically coordinated model
• Technical coordination documented
• Consolidated and coordinated phase completion

• Review of the results and approval for the next project phase

Define the objectives of the construction project:

• cost planning and cost optimisation
• input labels (GWP) based on area division and types

Client approves the initation of the construction phase

The ARC model must be detailed in accordance with the requirements.

The level of detail of the model and the information provided must be sufficient for the preparation of the tender / tender planning.

Note:

• Depending on the type of project, it may also be possible to work with different technical models (e.g. ARC; structure; etc.) at this point. This use case represents the simplest variant.

• Load-bearing structure, ceiling structures, wall structures, sealing, landscaping, opening elements (accessibility, windows, sun/glare protection, fire protection concept, heating, ventilation, air conditioning, plumbing), etc.
• Referencing of key details (optional)

LOI 200

• building location
• base quantities as a base for cost estimate / cost projection and GWP calculation
• typification of facade element
• total area of windows (transparent areas), doors, wall structures (assignable areas)
• fire protection specifications
• material specifications
• grid with format specifications
• running metres interfaces to doors, windows, roof edge, base, balcony.
• quantities - built-in parts

Note:

• CO2 equivalents for Global Warming Potential (GWP) are taken from the environmental product declarations (EPDs) and are not available in the model. The GWP calculation is carried out using the appropriate tools

• Export of quantities with corresponding parameters
• Extension with project-specific requirements (e.g. fire protection)

•  The architect coordinates the options chosen by the client together with the specialist planners.

• Specification of mounting surface, deflections and movements (earthquakes)
• Document in the planning concept without information from the model

• Corresponds to ARC model (construction project) with additional modelling of exclusion zones

The building physics planning parameters are coordinated and created with all the planners required for the specific project, such as fire protection, burglary, LCA, etc.

Examples:

• Confirmation of energy certificate
• Definition of u-values
• Shading requirements
• Definition of sound insulation
• Definition of air permeability

• Check whether all the necessary specifications are available and whether the requirements (e.g. building regulations and project-specific requirements of the client) are fulfilled.

• Technical coordination of all aspects

• Enhancement Model with geometrically coordinated foundations and specifications
• Material qualities (materialisation)

• Load-bearing structure, floor slabs, wall structures, window, openings

• Total area Windows (transparent surfaces), doors, wall structures (surface areas that can be occupied)
• Fire protection requirements
• Type of cladding / cladding material
• Material specifications
• Grid with format specifications
• Running metres Interfaces to doors, windows, roof edge, base, balcony, etc.

• Design development
• 2D documentation with model referencing
• Checks variants of selected designs

Documentation provided:

• Key details book / 2D sections (pdf)
• Usage agreement
• Quotation
• Global Warming Potential (GWP)
• Grey energy
• Technical report

• Check whether all the necessary specifications are available and whether the requirements (e.g. building regulations and project-specific requirements of the client) are fulfilled.

Performance coordination

• Geometrically coordinated model
• Technical coordination documented
• Consolidated and coordinated phase completion

Decision

• Ready for tender

• Check whether the model is ready for the tendering phase.
• Client approves next project  phase.