VECdbConstruction

class iesve.VECdbConstruction

Bases: object

Interface for VECdbConstruction. Basic usage: See cdb.py, in API examples.

add_layer(material_id: str, is_cavity: bool) → None

Add a layer to this construction

delete_layer(layer_id: str) → None

Delete a layer from this construction

get_default_resistances() → dict

Get default surface resistances for different methodologies

get_g_values() → dict

Get the different g-values as a dictionary. Dictionary entries are:

Key	Type
bs_en_410	(float)
building_regulation	(float)
bfrc	(float)

get_layers() → list[VECdbLayer]

Get a list of layers in this CDB construction

get_properties(u_value_type: uvalue_types | None) → dict

Get a dict of the properties of this CDB construction. The result depends on the optional U value type parameter of type uvalue_types. If no parameter is specified the U value type set in the Project Constructions dialog is used.

get_review_summary_string() → str

Get a summary of this CDB construction as a formatted string. Units are converted to local display preferences.

get_thermal_bridging_non_repeat_data() → thermal_bridging_non_repeat_dict | None

Gets Thermal Bridging Non Repeating Psi Data data for construction via dictionary dict empty if thermal bridging doesn’t apply to construction

Constant entries:

• ‘dataset_id’ : str of dataset id

Possible entries (depends on construction type):

Each entry will return ThBrTransitionTypeDatum object, with ‘ref’ and ‘val’ properties

• roof_transition

• roof_wall

• wall_partition

• wall_wall

• wall_ground_floor

• wall_floor

• lintel

• jamb

• sill

• rooflight_kerb_upstand

get_u_factor(u_value_type: uvalue_types) → float

Get the U Factor of this CDB construction. The result depends on the U value type parameter of type uvalue_types.

insert_layer(layer_id: str, insert_before: bool) → None

Insert a layer into this construction

set_const_class(construction_class: construction_class) → None

Set construction class of this CDB construction.

set_f_factor(ffactor: float) → None

Set F Factor of this CDB construction

set_properties(**kwds)

Helper for @overload to raise when called.

c_factor: float

The C Factor of this CDB construction. Only relevant if the regulation is 3 (ASHRAE901)

category: element_categories

CDB construction category

f_factor: float

The F Factor of this CDB construction

id: str

The id of the CDB construction

is_editable: bool

Is the CDB construction editable?

opaque: bool

Is the CDB construction opaque?

reference: str

The reference (description) of the CDB construction

regulation: int

The regulation applied to the CDB construction:

int	regulation
0	CIBSE
1	EN_ISO
2	ASHRAE 901
3	ASHRAE901,
4	Title 24