Interiors

Schedule of Spaces

For each use category, C.Scale assembles a schedule of spaces to fit the modeled building's overall area, based on precedent data from similar buidings. This space schedule is generic and does not include desriptions of the space's purpose, only the floor area and count of each.

Where the user has more specific data, they can explicitly declare this schedule of spaces in the API request or by adding and configuring spaces in the frontend application.

Assembly Takeoffs

For each space, C.Scale conducts takeoffs for ceiling, flooring, interior wall, and door assemblies. Takeoffs for ceiling, flooring, and interior walls are on an area basis, and doors are by count. Default wall assemblies are "single-sided" to prevent double-counting between shared walls. C.Scale includes data on typical furniture and fixtures per floor area for the spaces.

Where the user declares specific assemblies and their quantities, they may do so within the API request or in the frontend application.

Material Takeoffs

For each specific assembly, C.Scale conducts material takeoffs to convert the area or quantity of each assembly into a bill of materials. These takeoffs include both major (ex. drywall) and ancillary (ex. fasteners) materials.

Generic assemblies do not have material takeoff data. These generic assemblies summarize general trends across a range of specific assemblies, sampling the resulting distribution at the 20th, 50th, and 80th percentile. Because these metrics are statistically derived from summary data describing a range of assemblies, there are no takeoffs available. Said differently, it is not sensible to make a physical description of the average of a fully-glazed and a CMU interior wall - but we can still determine the range of carbon performance possible across interior wall types.

Material Data

For each material takeoff, C.Scale evaluates whole life cycle emissions using generic data derived from regionally available EPDs for that material. These EPDs are used to construct a range of possible carbon intensites, and the range is sampled at the 20th, 50th, and 80th percentile to create the options exposed in the UI and via API.