Coordination Drawings
Coordination Drawings
Coordination Drawings
Introduction:
Coordination (sometimes called Composite) is critical to the success of any commercial or
institutional building project today. Coordination in construction once referred to simply
avoiding physical conflicts in the layout of equipment in spaces and the routing of duct,
piping, and raceway systems through buildings. The risk of interference problems is
highest on building projects that have intense mechanical, electrical, and plumbing (MEP)
requirements. Production risks are compounded, as schedules become more intense.
Eliminating coordination problems can be characterized as a prerequisite to the start of
construction work on intense projects with dense MEP system requirements.
Coordination drawings definition: see fig.1
in electrical spaces.
Coordination drawings are mainly developed for sheet metal contractors, electrical
contractors, mechanical contractors, and mechanical engineering consultants.
Frees up site staff to concentrate on more important key tasks instead of wasting
time doing minor coordination tasks.
A final conclusion is that all project parties are participating in issuing and
creation of coordination drawings.
The coordination team decides as a group the assigned order in which the
coordination work is to take place. The specialty contractors with building services that
need to be fabricated and are sensitive to routing such as the HVAC air distribution
system should start first.
The drawings pass from each specialty contractor to the next in the agreed to
sequence. Each specialty contractor includes its work on the shared drawings. This can be
accomplished by assigning each specialty contractor a specific CAD drawing layer.
When the last specialty contractor has put its systems on the common drawings, it
is assumed that all specialty contractors working in the shared space are in agreement
and work can begin in the order dictated by the coordination drawings.
If there is a conflict during installation, the conflict is worked out between the
specialty contractors with conflicting installations or the group as a whole.
Based on the coordinated installation plan, prepare a work plan that includes a
schedule and sequence of work for the space.
Oversee the work as it is being performed to ensure that all specialty contractors
adhere to the installation and work plans.