Interface SOG

Surface area of the slab in square meters.

One of the parameters used to calculate total_foundation_floor_area and total_SOG_floor_area in the helpers.

For F280: Core parameter in heat flow calculations. Used with perimeter to determine the slab dimensions.

Material composition of the slab structure.

Used in processSlabsForAbstract() to calculate slab insulation UA values. The entity's R-value determines the thermal resistance of the slab.

For F280: SOGs use a simplified model of BaseSimp compared to basements, as they only use slab R-value.

For EnerGuide: Helps determine the HOT2000 foundation configuration. Exported as AddedToSlab element with R-value from insulation_rsi or r property.

Length of slab edge exposed to exterior conditions in meters.

Used for heat loss calculations through the slab edge.

For F280: Used to calculate the exposure fraction (exposed_perimeter / total_perimeter) which significantly affects heat loss calculations.

For EnerGuide: In addition to a slab on grade adjacent to another foundation, may define the exterior part of a walk-out foundation.

Material composition of special features (mainly edge insulation).

Used to determine foundation_rim_type.

For F280 and EnerGuide: Determines skirt R-value in conjunction with the entity.

Whether the slab has embedded heating elements.

Used to identify heated foundation areas for specialized thermal calculations.

Whether the slab footing is integral.

Used to track foundation configurations and identify integral footing slabs for specialized heat loss calculations.

For F280: Affects perimeter heat loss calculations in the foundation model.

For EnerGuide: An attribute factored in the floor construction element.

Total perimeter of the slab in meters.

For F280: Used with area to derive a surrogate shape for the slab used for heat flow modeling. Essential for determining the slab's geometry.

For HOT2000 it is exported as perimeter attribute in floor measurements element.

Name of the room this slab-on-grade is associated with. Links to a specific room in house.space.rooms when available.

In F280: Used to associate the slab with room-level heat loss calculations.