Class

Material

Code

IfcMaterial

Class type

Class

URI

https://identifier.buildingsmart.org/uri/buildingsmart/ifc/4.3/class/IfcMaterial

Definition

Material is a homogeneous or inhomogeneous substance that can be used to form elements (physical products or their components).

Dictionary

IFC

Dictionary version

4.3

Dictionary release date

2024-01-11

Dictionary license

Dictionary state

Preview

Status

Active

VersionDateUtc

2024-01-12

Uid

b36052ed-896b-48e8-b655-a1b4cb67f826

Class properties
Property set: Attributes

Definition of the category (group or type) of material, in more general terms than given by attribute Name.It is recommended to use common terms for the material category,'concrete', 'steel', 'aluminium', 'block', 'brick', 'stone', 'wood', 'glass', 'gypsum', 'plastic', 'earth'.

Optional description, provided for exchanging informative comments.

Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.

Property set: Pset_MaterialCombustion

Carbon monoxide (CO) content of the products of combustion. This is measured in weight of CO per unit weight and is therefore unitless.

Carbon dioxide (CO2) content of the products of combustion. This is measured in weight of CO2 per unit weight and is therefore unitless.

Nitrous oxide (N2O) content of the products of combustion. This is measured in weight of N2O per unit weight and is therefore unitless.

Defines the specific heat capacity of a material.

Property set: Pset_MaterialCommon

Material mass density.

Molecular weight of material (typically gas).

The void fraction of the total volume occupied by material (Vbr - Vnet)/Vbr.