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Lower Boundary of a Room: finished floor or slab? (Urgent!)

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Nachricht 1 von 6
Anonymous
1729 Aufrufe, 5 Antworten

Lower Boundary of a Room: finished floor or slab? (Urgent!)

Hello everyone! 

 

I would have a quick question about rooms that we need to solve today:

 

1. Should the lower boundary of the Architectural Rooms the Finished Floor level? or the top of the slab?

 

In our project, we have create the plans in the Finished Floor Level. Therefore the Architectural Rooms are made from Finished Floor Level until the lower edge of the slab, so they don´t include the 20cm of floor construction...are they correct?

 

Because now one technician has told us that the Arc-Rooms should go from the top of the Slab to the lower edge of the superior Slab...so that they can calculate correctly the volume including the "20cm floor construction above the slab" for cooling/heating, etc. But should they not be the MEP-Rooms instead?

 

How do you usually create the architectural rooms? which lower and top boundaries should they have?

 

2. And what about the MEP-Rooms? should they go from the top of the slab to the lower edge of the superior slab?

 

Because we have made our interior walls (which define all the interior rooms) from Finished Floor -3cm (as they are built from the isolation/screed level) to lower edge of the slab...so if the technician wants to create the MEP-Room in a Slab-level, they could not find the boundaries of the interior walls, as they are above this level, and the boundaries would be just the structural walls that begin in the top of the slab...is it correct? how do you usually create MEP-rooms?

 

Many thanks for your help! :leicht_lächelndes_Gesicht:

 

 

Unbenannt.JPG

 

 

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Nachricht 2 von 6
cbcarch
als Antwort auf: Anonymous

Rooms are associated with the host Level--and normally the floor slab ( structural slab) is set to the Level.

The finish floor is applied either as a separate floor ( best in my experience) or added to the floor slab as a compound layer. It depends on the project, the finished floor pattern/layout, etc.

The Room's  lower and upper boundary can have an offset from the Level--but unless there is a strong reason, I would not use an offset.

The energy analysis uses Spaces from the MEP tool set--not Rooms.

Cliff B. Collins
Registered Architect The Lamar Johnson Collaborative Architects-St. Louis, MO
Nachricht 3 von 6
Anonymous
als Antwort auf: cbcarch

Many thanks for your help! 

 

My main doubt is how are usually done the ARC-Rooms and MEP-Spaces, as in our project we have modeled separately the slab (30cm) and the finished floor (20cm), and therefore we have created 4 levels per floor:

Levels.JPG

 

 

 

 

 

 

OKFFB = Oberkannte Fertigfußboden = top of finished floor

OKRD = Oberkannte Rohdecke = top of concrete slap

UKRD = Unterkannte Rohdecke = lower edge of concrete slap

UKFD = Unterkannte Fertigdecke = lower edge of suspended ceiling

 

Are these room/space boundaries correct?:

 

ARC-Rooms: from top of the finished floor to lower edge of the superior slab

MEP-Spaces: from top of the slab to lower edge of the superior slab

 

Many thanks! :leicht_lächelndes_Gesicht:

Nachricht 4 von 6
cbcarch
als Antwort auf: Anonymous

It is not good practice to make (4) Levels for each floor.

This will cause more problems than it does any good.

Cliff B. Collins
Registered Architect The Lamar Johnson Collaborative Architects-St. Louis, MO
Nachricht 5 von 6
Anonymous
als Antwort auf: cbcarch

Thanks cbcarch,

 

that´s why im asking...because im not sure how should it be done correctly...how many levels do you normally use? are what are the boundaries of your ARC-Rooms and MEP-Spaces? 

 

Many thanks :leicht_lächelndes_Gesicht:

Nachricht 6 von 6
cbcarch
als Antwort auf: Anonymous

-Structural Slabs in Struct. Model (Copy/Monitor if needed in Arch model)

-Levels align w/ top/slab at each major story, and perhaps at roof level if needed.

-Interior Finish Floors in Arch. Model

- Rooms associated with Levels

 

Cliff B. Collins
Registered Architect The Lamar Johnson Collaborative Architects-St. Louis, MO

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