Variant Menu: Preferences > Building > Construction Type

The external walls are designated 1 to 4 and numbered consecutively clockwise.

Define the construction type of your building:

1. Enter the orientation of Wall 1. The other walls are automatically displayed.

2. Specify the construction type of the external walls:

   Construction Type	Description
   Light	Wood post-and-beam structure
   Medium	Brick building
   Heavy	Concrete composition (increasing heat capacity)

3. Specify the insulation standard of the external walls:

   Insulation Standard	Description
   Uninsulated	Without any insulation (garden house)
   Standard	Standard 2010 insulation
   High	Doubling of all insulation layers

Depending on the construction type and insulation standard chosen, a corresponding heat transfer coefficient (U-value, according to DIN V 18599 / 2007) is determined and used for further calculation. The higher the U-value, the higher the transmission losses of the building, contributing to a portion of the heat requirement. The table below provides an overview of the used U-values:

Used U-Values, Dependent on Construction Type and Insulation

Construction Type	Design Type	Insulation	U Value [W/K]
External Wall	Light	High	0.13
External Wall	Light	Standard	0.17
External Wall	Light	Uninsulated	0.22
External Wall	Medium	High	0.23
External Wall	Medium	Standard	0.43
External Wall	Medium	Uninsulated	3.05
External Wall	Heavy	High	0.22
External Wall	Heavy	Standard	0.39
External Wall	Heavy	Uninsulated	1.70
Ground	Light/Medium/Heavy	High	0.58
Ground	Light/Medium/Heavy	Standard	1.09
Ground	Light/Medium/Heavy	Uninsulated	8.42
Ground with Floor Heating	Light/Medium/Heavy	High	0.30
Ground with Floor Heating	Light/Medium/Heavy	Standard	0.58
Ground with Floor Heating	Light/Medium/Heavy	Uninsulated	8.42
Roof	Light/Medium	High	0.13
Roof	Light/Medium	Standard	0.18
Roof	Light/Medium	Uninsulated	3.16
Roof	Heavy	High	0.16
Roof	Heavy	Standard	0.24
Roof	Heavy	Uninsulated	4.32
Roof with Cooling	Light/Medium	High	0.13
Roof with Cooling	Light/Medium	Standard	0.18
Roof with Cooling	Light/Medium	Uninsulated	3.16
Roof with Cooling	Heavy	High	0.16
Roof with Cooling	Heavy	Standard	0.24
Roof with Cooling	Heavy	Uninsulated	4.32

• Enter the types of windows: single/double/triple glazing. The frame proportion is calculated at 10% for all windows. Windows differ in total transmissivity of the glazing. It is assumed that no shading is present.
• Specify the furniture mass to simulate additional building heat capacity, e.g., heavy furniture. The specific heat capacity is calculated and displayed.