With accurate and comprehensive design information and assembly data outlined in shop drawings, fabricators and MEP contractors can leverage efficient prefabrication and quick onsite installation. The clarity depicted in shop drawings helps fabricators produce site-ready MEP components to be connected on site. The following presentation summarizes the benefits of HVAC shop drawings to achieve higher fabrication and construction efficiency.

1. HVAC Shop Drawings
Importance and Benefits of

2. Why are HVAC Shop drawings important?
Accurate
installation of
building’s HVAC
components
Accurate assembly
of equipment
Accurate fabrication

3. HVAC shop drawing services resolve fabrication and
installation challenges for multiple stakeholders
General
Contractors
MEP
Contractors
Construction
Companies

4. How are HVAC Shop Drawings used?
Customize HVAC shop
drawings for ductwork with
details like size-length and
top-bottom elevation for
occupant comfort.
HVAC Engineers
Create HVAC drawings to
manufacture and connect
ventilation equipment for
improved air transmission
and dissipation.
Create mechanical shop
drawings to manufacture
HVAC equipment in the
specified location for
higher efficiency.
Mechanical Fabricators Contractors
Examples

5. Top 5 Benefits of
HVAC Shop Drawings

6. Fabrication and installation inaccuracy due to:
 Uncoordinated and clash-ridden HVAC layouts.
 Flawed or incomplete HVAC drawings with missing material
specifications or installation details resulting in rework.
Communicate design and
assembly data accurately
and transparently
THE CHALLENGE
THE SOLUTION
HVAC shop drawings extracted from coordinated 3D BIM models
provide:
 Drawing accuracy and clarity with model-extracted HVAC shop drawings.
 Multiple views of HVAC equipment in 3D for a clear perspective.
 Detailed HVAC product dimensions, material type, intended weight, etc.
1

7. Without detailed shop drawings:
 Fabrication of multiple units can be inaccurate and time consuming.
 Inaccuracies in design lead to rework and material waste.
Manufacture multiple
versions of the same
component
THE CHALLENGE
THE SOLUTION
Detailed HVAC shop drawings extraction helps in:
 Creating replicas of the same component example - roof joints.
 Replacing faulty HVAC components like ducts, pipes, air handling units
during construction or operations.
 Saving on rework, reducing material waste, and conserving
manufacturing time and cost.
2

8. Inaccurate or incomplete documentation leads to:
 Maintenance challenges during construction or handover
 Renovation defects
Build accurate and
detailed documentation
THE CHALLENGE
THE SOLUTION
Accurate & detailed HVAC documentation and shop drawings:
 Resolve maintenance challenges by easy referral to detailed 3D
models as required.
 Resolve defects.
 Help procure build approvals from the planning authority.
3

9. Inaccurate or insufficient count of HVAC components leads to:
 Increased cost
 Material waste during fabrication and installation
Accurate accountability
of building components
& precise project costs
THE CHALLENGE
THE SOLUTION
Accurate quantity takeoffs and cost estimates produce:
 Precise costs to procure manufacturing materials.
 Precise schedule calculations.
 Precise material procurement that cancels out material waste and
overstocking.
4

10. Clashes or interferences during construction lead to :
 Rework
 Project delays
Resolve errors before
setting foot on the field
THE CHALLENGE
THE SOLUTION
Identifying and resolving clashes during the pre-construction stage:
 Saves on costly rework and project delays.
 Enables HVAC fabrication & installation with information-driven insights.
 Enable precise HVAC component manufacturing, seamless site
construction, and time savings.
5

11. Reduce design iteration time
by 50% and cut down
manufacturing TAT by 30%
with accurate and detailed
manufacturing drawings for
mechanical components.
Hitech CADD Services shows you the way

12. Outsource your shop drawing and
fabrication drawing needs to us!
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