Revit Building Construction Types

I have had several people ask about this. How does Revit MEP under stand construction of the building and R values. Let's first say "there is no connection between the MEP Space and the Architectural Objects." We are required to specify this information.

What are you saying?

Revit model requires us to tell it what the construction type of the; floors, roofs, walls and glass. This data is added in the Project Information under Energy Data. You will find Building Construction click the "edit" button, that will open a dialog box that will list different construction objects. You will then choose from the drop down lists what primary Construction Type is for the objects. This will set the defualt for all the MEP spaces. You can over ride the construction types per space as needed.

I can't find the Construction Type I need.

Then you will need to add it to Revit. It is very simple to modify the constructions list, as well as add new wall types. Under C:\Program Files\Revit MEP 2010\Program\Constructions.xml you can open the constructions file with wordpad, and using the same format as the pre-defined ones add your specific wall, roof and window types. Make sure to keep the syntax the same, as well as keep the ID unique. Here is the xml format:Important things to note are, make sure you place your new construction under teh correct type, for example c for ceiling, w for wall etc. As I mentioned before also make sure to name the id unique. After you make the changes simply restart Revit and tehy should appear in the construction types.

I hope this will give you some additional in site and help.