5.2.7. Horizontal partition: floor<br>

### 5.2.7. Horizontal partition: floor

The “Horizontal partition: floor” component cannot stand alone – it may only be placed in a room and is assigned to it. However, separate data referring to this partition are displayed in the table. A floor type component is taken into account when heat loss calculations are done – just like in the case of a wall, window and door, the floor has a partition structure and U0 coefficient assigned.

To place a floor in a room, select it from the “Components” toolbar and click anywhere within the room area. The floor is always inserted in the room within its axes. It may be necessary to insert several floor type partitions into one room, depending on the number of rooms below the given room.

Button on the “Components” toolbar:

Appearance on screen:

“Horizontal partition: floor“ component data:

Calculated in Instal-heat&energy

Selection field. Determines whether partition is to be accounted for in Instal-heat&energy during heat loss calculations.

Partition structure type

Selection field. Type of partition structure. When heat loss calculations for rooms and specification of partitions is done in Instal-heat&energy, then this is a selection field where you can select a pre-defined partition from a list. If a type has already been assigned to the floor in Instal-heat&energy, then its name is automatically displayed in the graphical editor and the appropriate U0 coefficient is displayed in the field below.

U0

Numerical field. Coefficient of heat transfer across partition. When specification of partitions is done in Instal-heat&energy, then this field cannot be modified. The coefficient is automatically filled in for the partition type selected from list.
The name of partition structure and U0 coefficient can be entered directly from the keyboard in the graphical editor – then after loading the project into Instal-heat&energy, the partition type and U0 assigned to the given wall in the room are displayed in the building structure.

Area within axes [m2]

Numerical field. Surface area within axes. Value determined from drawing.

Area within faces [m2]

Numerical field. Surface area within faces. Value determined from drawing.

Outer area [m2]

Numerical field. Outer surface area of partition.

Partition type

Selection field. You can select the type of horizontal partition (floor on ground, floor over carport, internal floor) from a list.

! Some heat loss calculation standards require the differentiation between two or more zones of floor on ground. This may only be effected by inserting additional non-graphical partitions in the tables of Instal-heat&energy.