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Room Schema

This page defines the data model used to define a Room.

Heated Rooms

For each heated space within a building, the following is required:

Field NameUnitRequiredDefault Data Source
Ventilation zone-✳️
Room type-✳️
Room name-✳️
Max ceiling heightm✳️
Design room temperature°C✳️CIBSE DHDG Table 3.6
Minimum air change rate1/h✳️CIBSE DHDG Table 3.8
Internal air volume✳️
Intermittent heating%
Heat gainsW

Walls

Within every heated room, each wall surface must be defined individually based on it's wall type and adjacent space. The wall types you can select from depend on the type of adjacent space.

Field NameUnitRequiredDefault Value
Adjacent space-✳️
Adjacent room-✳️ †
Wall type-✳️
Widthm
Heightm
Area✳️Width × Height

† only required when adjacent space is a heated room

Area Definition

There is no need to subtract the area of any windows or doors from the wall area. The system will deduct these automatically to compute the correct net surface area.

Doors

Any doors should be specified based on door type. They will share the same adjacent space as the wall they exist on.

Field NameUnitRequiredDefault Value
Door type-✳️
Widthm
Heightm
Area✳️Width × Height

Windows

Any windows should be specified based on window type. They will share the same adjacent space as the wall they exist on.

Field NameUnitRequiredDefault Value
Window type-✳️
Widthm
Heightm
Area✳️Width × Height

Floors

Each floor surface must be defined individually based on it's floor type and adjacent space. The floor types you can select from depend on the type of adjacent space.

Field NameUnitRequiredDefault Value
Adjacent space-✳️
Adjacent room-✳️ †
Floor type-✳️
Widthm
Heightm
Area✳️Width × Height

† only required when adjacent space is a heated room

Ceilings

Each ceiling surface must be defined individually based on it's ceiling type and adjacent space. The ceiling types you can select from depend on the type of adjacent space.

Field NameUnitRequiredDefault Value
Adjacent space-✳️
Adjacent room-✳️ †
Ceiling type-✳️
Widthm
Heightm
Area✳️Width × Height

† only required when adjacent space is a heated room

Roof Windows

If the ceiling is an external roof, any roof windows should be specified based on window type. They will share the same adjacent space as the ceiling they exist on.

Field NameUnitRequiredDefault Value
Window type-✳️
Widthm
Heightm
Area✳️Width × Height

Ventilation devices

Any ventilation devices that exist in the room must be added so that the ventilation heat loss can be calculated correctly. These devices include extract fans, cooker hoods, chimneys and vents etc.

Field NameUnitRequiredDefault Data Source
Device type-✳️
Design flow ratem³/hSAP 10.2 Table 2.1