Phases represent fixed periods of time in a project. You can specify as many phases in a project as required. A project to renovate a building can undergo a demolition phase and more than one reconstruction phase. You also have an existing phase to represent the building in its current state. Phase is a view property. Each model view, including schedules, belongs to a phase. The phase filter property of each view controls which phase or phases appear in the view.
Every element inside of Revit can be classified as one of four different phase states: Existing, New, Demolished, or Temporary. Existing means existing (retained) objects from previous phase – not existing built objects. When the current phase is complete, these elements will still be there. New elements were not in the earlier phase, but when the current phase is complete, these elements will be there. Demolished elements were created in an earlier phase, but when the current phase is completed, these elements will not be there. Temporary elements were not in the earlier phase, will be constructed during the current phase. When the current phase is completed these elements will not be there.
Demolition is NOT a phase in a project. Rather objects are demolished DURING a particular phase (which can vary from object to object). Phases are user defined in pull down menu Settings>Phases. The following chart defines each of the phase states:
These settings can be applied in the Properties of each item. Simply tell Revit what phase the item is created in and what phase the item will be demolished in. Once you have items set to the correct status, you will need to assign views to show the phase and apply the appropriate phase filter. You can do this in the View Properties. You can create additional Phase Filters or Override the Graphics in the main Phase dialog box under the Settings pulldown.
If you create a new window (e.g. Floor Plan) sometimes it puts itself on a different phase to existing windows. If this happens references won’t display, and if you draw anything new it may not appear in other windows (depending on how phase filters are set-up). Check the view properties and make sure the Phase is same as other windows (generally Phase 2).
When demolishing a window or door, the hole is filled with surrounding wall. This piece of wall can have its type changed. (e.g. existing is solid, new is cavity brick). If you place a new window that extends beyond the new infill, it will not place unless top & bottom of infill wall is unlocked (done by editing type).
Existing in phasing means existing (retained) objects from previous phase – not existing built objects.
Rooms do not have editable phase parameters. The phase that is assigned to the view into which rooms are placed becomes the phase of the room. For example, if the current view is set to New, then all rooms placed into that view will be considered New. Just like any other element, these rooms will not show up in earlier phased views if the phase filter is set to show Previous + New. To create rooms in the model that will be associated with an earlier phase, a view that is assigned to an earlier phase must be current. When Rooms need to be carried over to future phases, this can be done to preserve the parameters that have been assigned. To copy rooms to other phases, simply select the room to be copied then use the clipboard panel copy command, switch to the desired future phased view, use the Paste Aligned / Current View. Room numbers can be reused in each phase without any conflicts.
Phases and phase filters apply to schedules just like views. Apply a phase filter to display objects from the correct phase.