Skylight parameters – available for listing and labels only
| SKYL_MARKER_TXT | skylight marker text | 
| SKYL_OPENING_SURF | skylight opening surface | 
| SKYL_OPENING_VOLUME | volume of the opening cut by the skylight | 
| SKYL_OPENING_HEIGHT | skylight opening height | 
| SKYL_OPENING_WIDTH | skylight opening width | 
| SKYL_HEADER_HEIGHT | skylight header height | 
| SKYL_SILL_HEIGHT | skylight sill height | 
Roof parameters – available for skylights, listing and labels
| ROOF_THICKNESS | thickness of the roof | 
| ROOF_ANGLE | slope of the roof | 
| ROOF_MAT_TOP | surface attribute index of the top surface of the roof | 
| ROOF_MAT_EDGE | surface attribute index of the edges of the roof | 
| ROOF_MAT_BOTT | surface attribute index of the bottom surface of the roof | 
| ROOF_LINETYPE | line type of the roof | 
| applied on the contours only in the floor plan window | |
| ROOF_FILL | fill of the roof | 
| fill index – its value is negative in case of a composite structure | |
| ROOF_FILL_PEN | pen of the fill of the roof | 
| ROOF_FBGD_PEN | pen of the background of the fill of the roof | 
| ROOF_COMPS_NAME | name of the composite structure of the roof | 
| ROOF_BMAT_NAME | building material name of the roof, empty string for composite roofs | 
| ROOF_BMAT | building material index of the roof, 0 for composite roofs | 
| Compatibility: introduced in ARCHICAD 21. | ROOF_SKINS_NUMBER | number of composite roof skins | 
| range of 1 to 8, 0 if single fill applied | |
| ROOF_SKINS_PARAMS | parameters of the composite roof skin | 
array with 18 columns with arbitrary number of rows:
 core status: 0 – not part, 1 – part, 3 – last skin of core, fill orientation: 0 – global, 1 – local;  | 
|
| ROOF_SKINS_BMAT_NAMES | building material names of the composite roof skin | 
| array with 1 column: building material name of the skin and with arbitrary number of rows. | |
| ROOF_SECT_PEN | pen of the contours of the roof cut surfaces | 
| applied on contours of cut surfaces both in floor plan and section/elevation windows | |
| ROOF_VIEW_PEN | pen of the roof on view | 
| applied on all edges in 3D window and on outline edges (edges on view below cutting plane) in floor plan and section/elevation windows | |
Roof parameters – available for listing and labels only
| ROOF_BOTTOM_SURF | bottom surface area of the roof | 
| not reduced by the surface area of the holes, which are bigger than the given value | |
| ROOF_GROSS_BOTTOM_SURF | gross surface area of the roof bottom | 
| reduced by the surface area of the holes | |
| ROOF_BOTTOM_SURF_CON | conditional bottom surface area of the roof | 
| reduced by the surface area of the holes, which are bigger than the given value | |
| ROOF_TOP_SURF | top surface area of the roof | 
| not reduced by the surface area of the holes, which are bigger than the given value | |
| ROOF_GROSS_TOP_SURF | gross surface area of the roof top | 
| reduced by the surface area of the holes | |
| ROOF_TOP_SURF_CON | conditional surface area of the roof | 
| reduced by the surface area of the holes, which are bigger than the given value | |
| ROOF_EDGE_SURF | surface area of the edge of the roof | 
| not reduced by the surface area of the holes | |
| ROOF_GROSS_EDGE_SURF | gross surface area of the roof edges | 
| reduced by the surface area of the holes | |
| ROOF_CONTOUR_AREA | area covered by the roof | 
| ROOF_PERIMETER | perimeter of the roof | 
| ROOF_VOLUME | volume of the roof | 
| not reduced by the volume of holes | |
| ROOF_GROSS_VOLUME | gross volume of the roof | 
| reduced by the volume of holes | |
| ROOF_VOLUME_CON | conditional volume of the roof | 
| reduced by the volume of holes, which are bigger than the given value | |
| ROOF_SEGMENTS_NR | number of segments of the roof | 
| ROOF_HOLES_NR | number of holes in the roof | 
| ROOF_HOLES_AREA | area of holes in the roof | 
| ROOF_HOLES_PRM | perimeter of holes in the roof | 
| ROOF_INSU_THICKNESS | roof insulation skin thickness | 
| ROOF_RIDGE | roof ridges length | 
| ROOF_VALLEY | roof valleys length | 
| ROOF_GABLE | roof gables length | 
| ROOF_HIP | roof hips length | 
| ROOF_EAVES | roof eaves length | 
| ROOF_PEAK | roof peaks length | 
| ROOF_SIDE_WALL | roof side wall connection length | 
| ROOF_END_WALL | roof end wall connection length | 
| ROOF_TRANSITION_DOME | roof dome connection length | 
| ROOF_TRANSITION_HOLLOW | roof hollow connection length | 
Common Parameters for Shells and Roofs – available for listing and labels only
| SHELLBASE_THICKNESS | thickness of the shell/roof/slab | 
| equal to ROOF_THICKNESS for roofs | |
| SHELLBASE_MAT_REFERENCE | surface attribute index of the bottom surface of the shell/roof | 
| equal to ROOF_MAT_BOTT for roofs | |
| SHELLBASE_MAT_EDGE | surface attribute index of the edges of the shell/roof | 
| equal to ROOF_MAT_EDGE for roofs | |
| SHELLBASE_MAT_OPPOSITE | surface attribute index of the top surface of the shell/roof | 
| equal to ROOF_MAT_TOP for roofs | |
| SHELLBASE_LINETYPE | line type of the shell/roof | 
| applied on the contours only in the floor plan window, equal to ROOF_LINETYPE for roofs | |
| SHELLBASE_FILL | fill of the shell/roof | 
| fill index – its value is negative in case of a composite structure, equal to ROOF_FILL for roofs | |
| SHELLBASE_FILL_PEN | pen of the fill of the roof shell/roof | 
| equal to ROOF_FILL_PEN for roofs | |
| SHELLBASE_FBGD_PEN | pen of the background of the fill of the shell/roof | 
| equal to ROOF_FBGD_PEN for roofs | |
| SHELLBASE_COMPS_NAME | name of the composite structure of the shell/roof | 
| equal to ROOF_COMPS_NAME for roofs | |
| SHELLBASE_BMAT_NAME | building material name of the shell/roof | 
| equal to ROOF_BMAT_NAME for roofs | |
| SHELLBASE_BMAT | building material index of the shell/roof | 
| Compatibility: introduces in ARCHICAD 21. | |
| equal to ROOF_BMAT for roofs | |
| SHELLBASE_SKINS_NUMBER | number of composite roof skins shell/roof | 
| range of 1 to 8, 0 if single fill applied, equal to ROOF_SKINS_NR for roofs | |
| SHELLBASE_SKINS_PARAMS | parameters of the composite roof skin shell/roof | 
array with 18 columns with arbitrary number of rows:
 core status: 0 – not part, 1 – part, 3 – last skin of core, fill orientation: 0 – global, 1 – local;  | 
|
| SHELLBASE_SKINS_BMAT_NAMES | building material names of the composite roof skin shell/roof | 
| array with 1 column: building material name of the skin and with arbitrary number of rows.
 equal to ROOF_SKINS_BMAT_NAMES for roofs  | 
|
| SHELLBASE_SECT_PEN | pen of the contours of the roof cut surfaces shell/roof | 
| applied on contours of cut surfaces both in floor plan and section/elevation windows, equal to ROOF_SECT_PEN for roofs | |
| SHELLBASE_VIEW_PEN | pen of the roof on view shell/roof | 
| applied on all edges in 3D window and on outline edges (edges on view below cutting plane) in floor plan and section/elevation windows, equal to ROOF_VIEW_PEN for roofs  | 
|
| SHELLBASE_REFERENCE_SURF | reference side surface of the shell/roof | 
| not reduced by the surface of holes, equal to ROOF_BOTTOM_SURF for roofs | |
| SHELLBASE_COND_REFERENCE_SURF | conditional reference side surface of the shell/roof | 
| equal to ROOF_BOTTOM_SURF_CON for roofs | |
| SHELLBASE_GROSS_REFERENCE_SURF | gross surface of the shell/roof reference side | 
| reduced by the surface of the holes, equal to ROOF_GROSS_BOTTOM_SURF for roofs | |
| SHELLBASE_OPPOSITE_SURF | surface of the opposite side to the reference side of the shell/roof | 
| not reduced by the surface of holes, equal to ROOF_TOP_SURF for roofs | |
| SHELLBASE_COND_OPPOSITE_SURF | conditional surface of the opposite side to the reference side of the shell/roof | 
| reduced by the surface of the holes, which are bigger than the given value; equal to ROOF_TOP_SURF_CON for roofs | |
| SHELLBASE_GROSS_OPPOSITE_SURF | gross surface of the opposite side to the reference side of the shell/roof | 
| reduced by the surface of the holes, equal to ROOF_GROSS_TOP_SURF for roofs | |
| SHELLBASE_EDGE_SURF | surface of the edge of the shell/roof | 
| not reduced by the surface of holes, equal to ROOF_EDGE_SURF for roofs | |
| SHELLBASE_GROSS_EDGE_SURF | gross surface of the shell/roof edges | 
| reduced by the surface of holes, equal to ROOF_GROSS_EDGE_SURF for roofs | |
| SHELLBASE_PERIMETER | perimeter of the shell/roof | 
| equal to ROOF_PERIMETER for roofs | |
| SHELLBASE_VOLUME | volume of the shell/roof | 
| not reduced by the volume of holes, equal to ROOF_VOLUME for roofs | |
| SHELLBASE_COND_VOLUME | conditional volume of the roof shell/roof | 
| reduced by the volume of holes, which are bigger than the given value; equal to ROOF_VOLUME_CON for roofs | |
| SHELLBASE_GROSS_VOLUME | gross volume of the roof shell/roof | 
| reduced by the volume of holes, equal to ROOF_GROSS_VOLUME for roofs | |
| SHELLBASE_HOLES_NR | number of holes in the shell/roof | 
| equal to ROOF_HOLES_NR for roofs | |
| SHELLBASE_HOLES_SURF | surface of holes in the shell/roof | 
| equal to ROOF_HOLES_AREA for roofs | |
| SHELLBASE_HOLES_PRM | perimeter of holes in the shell | 
| equal to ROOF_HOLES_PRM for roofs | |
| SHELLBASE_OPENINGS_NR | number of openings in the shell | 
| SHELLBASE_OPENINGS_SURF | surface of openings in the shell | 
| SHELLBASE_INSU_THICKNESS | shell/roof insulation skin thickness | 
| equal to ROOF_INSU_THICKNESS for roofs | |
| SHELLBASE_RIDGE | shell/roof ridges length | 
| equal to ROOF_RIDGE for roofs | |
| SHELLBASE_VALLEY | shell/roof valleys length | 
| equal to ROOF_VALLEY for roofs | |
| SHELLBASE_GABLE | shell/roof gables length | 
| equal to ROOF_GABLE for roofs | |
| SHELLBASE_HIP | shell/roof hips length | 
| equal to ROOF_HIP for roofs | |
| SHELLBASE_EAVES | shell/roof eaves length | 
| equal to ROOF_EAVES for roofs | |
| SHELLBASE_PEAK | shell/roof peaks length | 
| equal to ROOF_PEAK for roofs | |
| SHELLBASE_SIDE_WALL | shell/roof side wall connection length | 
| equal to ROOF_SIDE_WALL for roofs | |
| SHELLBASE_END_WALL | shell/roof end wall connection length | 
| equal to ROOF_END_WALL for roofs | |
| SHELLBASE_TRANSITION_DOME | shell/roof dome connection length | 
| equal to ROOF_TRANSITION_DOME for roofs | |
| SHELLBASE_TRANSITION_HOLLOW | shell/roof hollow connection length | 
| equal to ROOF_TRANSITION_HOLLOW for roofs | |