Allplan 2014 IFC Workflow

8/9/2019 Allplan 2014 IFC Workflow

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Allplan 2014 workflow for exporting the data to the external energy analysis tool

0 Test case

I New document settings

1. Create new project, set the defaults


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Building structure is used as opposite to Fileset structure, because Building structure is used for IFC export. But the

File set structure can also be used and then copied to the Building structure before the export.

I Wall layers settings

One-layered wall


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2. Multi-layerd wall, maximum number of layers is 5. So my wall should be adjusted

2a. Properties are adjusted


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3. Once I have the concept, I start with Parameters, Attributes part. Setting the thickness. But it is unclear what units

are used for the thickness. Meters? Mm? Cm? It only becomes clear while specifying the parameters in the different

window for the layers, see step 4.

The previously created wall favourite is used.


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4. Otherwise it is probably easier to use the Attributes button where the parameters for each layer can be set

The attributes can be assigned to the whole wall or to one layer. Only Lambda can be specified from the thermal-related

properties. U-value is not needed for the simulation.

NB for IFC: the units in these windows are different IFC takes the mm.


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I Slab settings

5. Only single-layered slabs can be created


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I Roof settings6. Roof can be up to 5 layers thick

So the roof structure is also simplified


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7. And then created in Allplan, saved as favourite DAl 01 b Holzsparren-Steildach

7a. Additional properties can be assigned to the Roof layers via Right mouse click on the object (roof) > Assign, Modify

object properties > window with properties


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8. The height of the outside wall layer remains 4.2, all the others are changed to the 3.65 m

I Custom IFC parameters

9. Custom parameters can be created and assigned to the layers. Then they are exported to the IFC


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The custom parameters however are not saved neither in the material nor in the favourites, so they should be specified

each time separately for all building elements.

II Export to IFC

Allplan 2014 exports 2x3 IFC and 2x3 IFCxmls

1. got the error

2. Changed the Building structure and picked it up at the export


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Different export options can be specified for the export


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3. Exported IFC and IFC xml for reviewing

4. If the wall layers have different heights, IFC is written with errors. Sketchup does not import anything but a slab.

(Imported to the Sketchup via IFCtoSU plugin)


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4. The wall layers are all set to 3,65, this way Sketchup imports the walls and the slab. But not the roof, window anddoor.


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5. Roof is only imported if it consists of one layer

Physical properties: 1. Only the properties of the outer layers of the complex structures are exported, Lambda values of

0.21 and 0.84, which correspond to the Dachziegel Ton and Gipskartonplate

IFCxml fragments with material properties


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FZK viewer

IfcMaterialLayerSet is not specified, presumably this is the reason why the layer properties are not exported properly

Allplan 2014 IFC Workflow

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