Building Parts

The Building Parts section lets you define the construction elements like walls, roof, floors, and their insulation characteristics.

Enter the following information:

• The Main Dwelling section is expanded by default.

• Select the Construction Age Band* dropdown, then select the age band such as 1950-1966 or 2012 onwards.

• Under Floor select the Heat Loss dropdown, then select the type of flooring heat loss such as Exposed or Semi-Exposed to Unheated Space.

• Under Floor Dimensions select Floor Dimension 1 to expand it:

  • Select the Floor dropdown, then select the appliable floor such as Lowest Occupied or Lowest +1.

  • Enter the Total Floor Area.

  • Enter the Room Height.

  • Enter the Heat Loss Perimeter.

  • Enter the Party Wall Length.

  • Select the Floor Construction dropdown, then select either Unknown, Solid, Suspended Timber, or Suspended, Not Timber.

  • Select the Floor Insulation dropdown, then select either Unknown, As Built, or Retro-Fitted.

• Select Add Floor Dimension to add another floor dimension, select the new Floor Dimension to expand it and enter all relevant information.

• Under Walls:

  • Select the Wall Construction dropdown, then select what the wall is constructed from such as, Solid Brick or Timber Frame.

  • Select the Party Wall Construction dropdown, then select what the party wall is constructed from such as, Filled Cavity or Unable to Determine.

  • Select the Wall Thickness Measured toggle to state whether the wall thickness has been measured. This determines whether the Wall Thickness [mm] field is enabled or not.

  • Enter the Wall Thickness [mm], if the field is enabled.

  • Select the Wall Insulation Type dropdown, then select type of wall insulation such as, Filled Cavity or Internal.

  • Enter the Wall U-Value [W/(m²K)].

  • Select the Wall Dry-Lined or Lath and Plaster toggle to state whether the wall is dry-lined or lath and plaster or not.

• Under Alternative Wall, select the Alternative Wall toggle to show the following:

  • Enter the Wall Area.

  • Select the Wall Construction dropdown, then select what the wall is constructed from such as, Solid Brick or Timber Frame.

  • Select the Wall Insulation Type dropdown, then select the type of wall insulation such as, External or Filled Cavity.

  • Select the Wall Thickness Measured toggle to state whether the wall thickness has been measured. This determines whether the Wall Thickness [mm] field is enabled or not.

  • Enter the Wall Thickness [mm], if the field is enabled.

  • Enter the Wall U-Value [W/(m²K)].

  • Select the Sheltered Wall toggle to state whether the wall is sheltered or not.

• Under Roof:

  • Select the Roof Construction dropdown, then select the type of roof construction such as, Pitched Access To Loft or Flat.

  • Select the Roof Insulation Thickness dropdown, then select the thickness of the roof insulation such as, As Built or 12 mm.

  • Enter the Roof U-Value [W/(m²K)].

• Under Room in Roof:

  • Select the Roof Room Age Band dropdown, then select the age band of the roof room such as 1950-1966 or 2012 onwards.

  • Enter the Room Roof Floor Area.

  • Enter the Roof Room U-Value [W/(m²K)].

  • Select the Roof Room Insulation dropdown, then select the insulation of the roof room such as, As Built or All Elements 50mm.

  • Select the Roof Rooms Connect toggle to state whether there are any connected roof rooms.

  • Enter the Flat Ceiling Area 1 [m²].

  • Enter the Flat Ceiling U-Value 1 [W/(m²K)].

  • Enter the Sloping Ceiling Area 1 [m²].

  • Enter the Sloping Ceiling U-Value 1 [W/(m²K)].

  • Enter the Stud Wall Area 1 [m²].

  • Enter the Stud Wall U-Value1 [W/(m²K)].

  • Enter the Gable Wall Area 1 [m²].

  • Enter the Gable Wall U-Value1 [W/(m²K)].

  • Enter the Flat Ceiling Area 2 [m²].

  • Enter the Flat Ceiling U-Value 2 [W/(m²K)].

  • Enter the Sloping Ceiling Area 2 [m²].

  • Enter the Sloping Ceiling U-Value 2 [W/(m²K)].

  • Enter the Stud Wall Area 2 [m²].

  • Enter the Stud Wall U-Value2 [W/(m²K)].

  • Enter the Gable Wall Area 2 [m²].

  • Enter the Gable Wall U-Value2 [W/(m²K)].

• Select Add New Extension to add the building details for a new extension. Enter all the appliable information for the new extension.