| Name | ID | Description | Type | 
|---|---|---|---|
| IfcMaterialLayer | M | IfcMaterialLayer | Generic Data | 
| Name | ID | Description | Type | 
|---|---|---|---|
| IfcMaterial | M | IfcMaterial | Generic Data | 
| Thickness | T | Layer Thickness | Number | 
| Ventilated | V | Ventilated | Boolean | 
| Name | N | Name | Text | 
| Description | D | Description | Text | 
| Category | C | Category | Text | 
| Priority | P | Priority | Number | 
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