Materials & resources

IFC Versions and Recommended Export Settings vyzn imports IFC files schema-agnostically – you simply upload your file without selecting an IFC version. In practice, IFC4 models are used. For… → What is a zone in vyzn? A zone is a spatial unit of a variant with area and classifications (e.g., EBF, usage, Minergie-ECO), managed in zone management. Zones determine… → What is a component or product in vyzn? A component (product) is an entry in the catalog — a component (single material), an assembly (multi-layer build-up), or a system. Its attributes… → What is DMP (Deep Model Processing)? DMP (Deep Model Processing) is vyzn's AI-based in-depth analysis of your IFC model during integration. It automatically derives reference areas… → What is the catalog in vyzn? The catalog is a collection of components organized in categories with their attributes. Catalogs are the data source for all assignments in vyzn. → What is a model element in vyzn? A model element is a building element imported from the IFC model (e.g., wall, slab, window). A component from the catalog is assigned to it; only… → What is eBKP-H? eBKP-H (Baukostenplan Hochbau, SN 506 511) is the Swiss cost classification for buildings by elements (e.g., C Construction, D Services, E… → What is the SNBS? SNBS (Standard Nachhaltiges Bauen Schweiz) is a comprehensive Swiss sustainability standard covering society, economy, and environment. In vyzn,… → What is IFC? IFC (Industry Foundation Classes) is the open, vendor-neutral file format for exchanging building models (BIM) between software applications. vyzn… → What product types does the vyzn catalog contain and what statuses exist? The catalog contains five product types: components, materials, reference materials, building services, and other resources. Each product has one… → What material properties does the summer heat protection need? For the simulation, materials in the catalog must have the properties "Heat capacity", "Thermal conductivity", and "Density" — they determine the… → What is the difference between "Material Costs" and "Quantity Takeoff"? "Material Costs" calculates purely area-based: per model element area × "Price in CHF" of the assigned component, summed to the "Component Costs"… → Which data sources does vyzn use, and how often are they updated? vyzn combines several verified sources: KBOB reference materials (in multiple versions), Ökobaudat, materialsdb and generic vyzn materials. Our… → Can I choose between different KBOB versions, and which one is used? Yes and no – by design: we release every new KBOB version in vyzn and recommend the latest. Older versions are never removed, so the data of your… → Can I create and edit my own building components and layers in vyzn? Yes. You create new components in your own product catalogue and assemble their build-up freely from individual layers – including attributes such… → Are KBOB reference materials included in vyzn? Yes, the official KBOB reference materials are included in vyzn and are always kept up to date. → Why do CO2 emissions differ between similar concrete types, and are the values comparable? The CO2 values in vyzn come directly from the official KBOB life cycle assessment dataset and are not estimated. Differences between similar… → How do I group elements by "Type" instead of "Name"? In the configuration screen you can freely choose which attribute is used for grouping – for example "Type" or "Type name" instead of "Name". For… → Why is a component from the vyzn catalog read-only, and how can I still adapt it? vyzn standard templates are read-only by design so that they remain consistent across projects. To adapt a component anyway, create a copy, edit… → Do I need to link all elements to components? No, you do not need to link every element to a component. Deliberately link only the elements that should be included in your analyses (e.g. a… → How do I link materials to KBOB reference materials? Open your material in the catalogue in edit mode and click "Link to a reference material" on the relevant attribute group. Select the matching… → Can steel profiles be created as separate components, or do they have to be integrated into an overall assembly? Both options are possible: you can create steel profiles as separate components or integrate them into an overall assembly. What matters is how… → How are openings (windows/doors) recognized? vyzn recognizes windows and doors automatically from your IFC model based on their IFC type: IfcWindow is identified as a window, IfcDoor as a… → How can I import existing materials and building components into vyzn? You can import materials into vyzn directly from Excel, the Lesosai catalogue (.ldl) or the Archicad material catalogue (.xlsx or .txt). Entire… → How do I create a new building component? You create your own building components in the component catalog: open Catalog → Components, select the desired catalog or folder and add a new… → Can I store my own material data? Yes. As a customer, you can also import and store your own material data in vyzn. It is then available to you in addition to the material data… → How are columns and beams captured in vyzn? Columns and beams are captured automatically during IFC import: vyzn recognizes the IFC classes IfcColumn and IfcBeam (including StandardCase… → Are components assigned to 3D model elements automatically? Yes, to a large extent: when you import your IFC model or create a version, the 3D elements are automatically grouped according to SIA 2032, and… → How do I link model elements to building components? Linking is a guided process: once your IFC model has been processed, open the "Model elements" page for the variant. The assignment happens in… → Can I store project-specific references such as EPDs and compare multiple datasets per material? Partially: you can create your own reference materials and link them to your materials per attribute group, and EPD documents can be uploaded as… → Can I automatically link model elements to building components? Yes, vyzn automatically links your model elements to building components during IFC import: they are grouped according to SIA 2032 A.2.2, and each… → Can I use EPDs (Environmental Product Declarations) in vyzn? Yes, you can use EPDs in vyzn. vyzn allows you to add your own materials, which also lets you bring in values from EPDs. Correctly interpreting,… → How do I define cross-sections and percentage values correctly? You define the cross-section and percentage values in the catalogue directly on the component: open the component in edit mode and click… → How does vyzn handle complex geometries (freeform, curtain walls, stairs), and where are the limits? vyzn does not evaluate your IFC by re-meshing the raw geometry; it uses the quantities stored in the model (Qto or VYZN property sets). Curtain… → What model size is recommended and how does it affect upload and software performance? There is no fixed recommended model size in vyzn, but there is a technical upper limit: in the standard environment, the maximum file size per… → How do I model hybrid constructions such as timber-concrete composites or ventilated facades? You model hybrid constructions via the component build-up in the cross-section matrix: add stacked layers with "Add layer" and split inhomogeneous… → How do I create materials in the catalog? You create your own materials in the catalog: under Katalog → Materialien, open the desired catalog or folder and select «Produkt erfassen»… → What data does the vyzn material catalogue contain? The vyzn material catalogue contains standard materials and components with all the information required for the respective analyses. This… →