Forums >> Revit Building >> Technical Support >> Room's lower offset is above the Computation Height

IloveSKETCHUP

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Joined: Wed, Dec 17, 2008
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Whenever I adjust the room ABOVE the floor it was created i get...

"Room's lower offset is above the Computation Height"

the slabs are at different heights on this floor and I want to adjust the room.

When I hit adjust limits it takes me to the properties, I type in the +200 offset and I get the same error.

Any help appreciated.

(Revit 2012)

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Slavedrafter

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Joined: Wed, Oct 1, 2008
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Arg.. I'm having the same problem.  Part of my hallways are built up slab 10" above the FF of the rest of the building and the rooms in the area are not being bound by the floors and walls. Why does revit even allow you the option to change the base offset if it is just going to yell at you when you try?  What did you end up doing?  I'm thinking I can add another level where my slab does this which is in a small area on every level for ten floors, so adding all those extra levels instead of having a few rooms here and there with special properties is super annoying.

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lab21

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Joined: Sun, Nov 5, 2006
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Sometimes rooms get trapped in the space between their associated level and a raised floor. Remember floors are usually 'room bounding' also. So if your room is based on a level and you try and move it above the floor slab Based off the same level then it can't exist!  

As slavedrafter says, the best way to deal with this is to have a level for the raised floor (good practice anyway), create a floor plan based on the raised level and add rooms in that view. You don't have to use that plan view for anything else just adding rooms on the raised level.

Hope that makes sense?

Luke

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hifrank001

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For discussion, the added level will be shown on every section view; is there a way to only show it in specific views?

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barryco

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Joined: Wed, May 2, 2012
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The best work around to avoid adding too many levels and thus inadvertently showing it on sections and elevations (although you can make a separate level symbol family specifically for this and set to not show or make that symbols as invisible as  possible), is to adjust the computation height of your levels. For example if you have level one and there are multiple split slabs of varying levels, set the level one's computation height (found in instance properties default to zero) to that of the heighest slab. You can then adjust each room on that level above the actual level one with the limit of the height of the highest slab you have set.

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