1. Construction Management
M I N I T A B H E A D Q U A R T E R S
Erin E. Hess
Construction Management
Senior Thesis Presentation
April 15, 2003
Alexander Constructors, Inc.
Building Construction

2. Presentation Outline Project Description Cladding System
Mechanical System
Green Building
Summary & Conclusions
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Presentation Outline

3. Project Description Headquarters for Minitab, Inc.
Developer of data analysis software
Location:
State College, PA
Construction:
June 2001 – December 2002
Size:
Site acres
Facility 88,000 SF
Cost:
$ 14 Million
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Project Description

4. Architecture Four Story Exposed Basement
Full four-story atrium with glass elevators, pond, and waterfall
209 offices, 18 conference rooms, theater, exercise area with locker rooms, game room
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Project Description

5. Contractor Selection CM Proposal Alexander chosen based on
Qualified Team
Local Company
Project Team
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Project Description

6. Thesis Project Goals Project Description Maintain clean
architectural appearance
Maintain superior energy efficiency
Complete construction by
November 2002
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Project Description

7. Presentation Outline Project Description Cladding System
Mechanical System
Green Building
Summary & Conclusions
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Presentation Outline

8. Existing Cladding System
Exterior Insulation Finish System (EIFS)
Prefabricated, panelized system
Four foot, seamless mullion ribbon windows
Glass fiber reinforced panels
Prefabricated EIFS panels
Ribbon windows
GFRC panels
Rear entrance constructed & finished on-site
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Project Description

9. Cladding System Desired Appearance Economic Performance
Clean lines
Economic Performance
Energy efficient, maintain R-20
Life Cycle Cost
Installation
Maintenance & Repair
Energy Savings
Inflation
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

10. Precast Concrete Panel
Maintain Architectural Appearance
Variety of finishes and colors
Thermal Efficiency
Add rigid insulation to precast assembly
Maintenance
Durable
Cost efficient
Resistant to moisture.
Photo courtesy Tindall Corporation:
Houston Co. Spec., Perry, GA
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

11. Life Cycle Cost Analysis
Thirty year study period
Exterior façade area 23,000 SF
Maintain insulation value of R-20
ASTM Standard Practice for Measuring Life Cycle Costs of Buildings and Building Systems
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

12. EIFS Installation Cost
Exterior Insulation and Finish System (EIFS, Class PB)
Cost per
square foot
Fiberglass batt insulation, 6 in. thick, 15 in. wide
$0.60
EIFS
Framing, 6 in. metal 16” o.c.
Cement board sheathing, ¾ in.
4” Expanded polystyrene insulation board (EPS)
EIFS base coat
Reinforcing mesh
Finish coat
$15.75
Total unadjusted present value cost =
$16.35
Total Installation Cost =
$376,050
Location Adjustment (State College, PA) = 95.4 percent =
$358,752
Time Adjustment (July 2001) = 96.1 percent =
$344,761
TOTAL INSTALLATION COST =
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

13. Precast Installation Cost
Precast Concrete
Cost per
square foot
Metal studs, non-loadbearing 16” o.c.
$0.85
Fiberglass batt insulation, 6 in. thick, 15 in. wide
$0.60
Flat precast concrete panel
Thickness – 6 in. thick
Panel size (ft) – 6 x 18
Finish – smooth gray
Rigid insulation – 2 in.
Type – low rise
$10.45
Add’l 2 in. rigid insulation*
$0.73
Total unadjusted present value cost =
$12.63
Total Installation Cost =
$300,370
Location Adjustment (State College, PA) = 95.4 percent =
$286,553
Time Adjustment (July 2001) = 96.1 percent =
$275,377
TOTAL INSTALLATION COST =
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

14. Projected Life Cycle Cost (Present Value Dollars)
Projected Maintenance Costs
Projected Life Cycle Cost (Present Value Dollars)
Cladding and Structural Framing Assembly
Estimated Installation & Maintenance Costs
(Year)
Total Life
Cycle Cost 15 20 25 30
EIFS (Class PB)
cash outflow
(initial costs and
maintenance)
344,761
7,318
11,119
$ 363,198
Precast Concrete
275,377
22,079
6,183
$ 303,639
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

15. Life Cycle Cost Installation Maintenance Total Life Cycle Cost
EIFS - $344,761
Precast - $275,377
Maintenance
EIFS - $18,437
Precast - $28,262
Total Life Cycle Cost
EIFS - $363,198
Precast - $303,639
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

16. Structural Impact Typical Structural Frame Panel Size
Bays 24’-0” x 19’-9”/19’-5”
Panel Size
24’-0” x 7’-3”
Cladding Assembly
Panel Size
Weight
(per Panel)
EIFS Panel
4 in. EPS insulation
Heavyweight reinforcing mesh
20 ga., 6 in. metal 16” o.c.
24’-0” x 7’-3”
581 lbs.
Precast Panel
6 in. lightweight concrete (50 pcf)
4,408 lbs.
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

17. Structural Impact Calculation of Additional Loading
Tributary area = 242 SF
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

18. Structural Impact Cladding System EIFS (lbs) PRECAST ROOF Dead Load
588.8
Live Load
26,620.0
THIRD/SECOND/
FIRST FLOORS
38,007.0
49,448.0
50,820.0
TOTAL LOADS
38,596.0
50,077.0
77,440.0
DESIGN LOAD:
1.2 DL LL
170,219
183,996
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

19. Structural Impact Design Load Increase Original Perimeter Columns
13,777 pounds per bay; 8% increase
Original Perimeter Columns
W12X45
Design Load Capacity = 350 kips
Resized Perimeter Columns
W12X50
Design Load Capacity = 393 kips; 12.3% increase
Increased Steel
30 Perimeter columns, each 38 ft. in length
Increase of 5 plf = 2.85 tons => $4,047.
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

20. Schedule Analysis EIFS – Fork lift Cladding System
Panelized EIFS Installation Detail
ACTIVITY
DURATION
1. Attached panel to fork lift rigging.
10 min.
2. Maneuver forklift to panel installation location.
5 min.
3. Align panel with pre-installed steel angle attachments.
15 min.
4. Level and attach panel to structural steel frame.
30 min.
TOTAL EIFS PANEL INSTALLATION DURATION (per panel):
1 hour
TOTAL ACTIVITY DURATION:
9 DAYS
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

21. Schedule Analysis Precast – Crane Cladding System
Precast Panel Installation Detail
ACTIVITY
DURATION
1. Attached panel to crane rigging.
15 min.
2. Maneuver panel to installation location.
30 min.
3. Align panel with pre-installed steel angle attachments.
4. Level and attach panel to structural steel frame.
60 min.
TOTAL EIFS PANEL INSTALLATION DURATION (per panel):
2.25 hours
TOTAL ACTIVITY DURATION:
19 DAYS
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

22. Cladding System Summary
Use of Precast Concrete Panel System
First Cost Savings = $69,384
30-year Life Cycle Cost Savings = $59,559
Increased Structural Steel = $4,047
Overall Cost Savings
$55,512
16% savings on exterior cladding budget
0.5% savings on project estimated cost
Increased project schedule 10 days
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Cladding System

23. Presentation Outline Project Description Cladding System
Mechanical System
Green Building
Summary & Conclusions
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Presentation Outline

24. Original Mechanical System
Dedicated outdoor air system with parallel radiant panel system
Ventilation system – temperature control, air quality, and latent (moisture) load
Radiant panels address remainder of sensible load (temperature)
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Project Description

25. Mechanical System Redesign
Original Design
Estimated Cost = $1,500,000
Did not consider structural effects of locating boiler and chiller on roof – additional $200,000.
Revised Estimated Cost = $1,700,000
Redesign
100% Outdoor air – geothermal system
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Mechanical System

26. Mechanical System 100% Outdoor Air – Geothermal System
Energy-efficient
Environmentally clean
Cost effective
Minitab Geothermal System
40,000 lf of pipe – ft. each
278 high-efficiency heat pumps
Air to air heat recovery system
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Mechanical System

27. Geothermal System
Individual heat pumps for each space above the ceiling in the corridor.
Geothermal Well Field
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Mechanical System

28. Geothermal System Maintain energy efficiency
Maintain indoor air quality
Maintain service load requirements
Eliminate structural and architectural redesign
Cost Savings = $200,000
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Mechanical System

29. Presentation Outline Project Description Cladding System
Mechanical System
Green Building
Summary & Conclusions
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Presentation Outline

30. Green Building Atmosphere conducive to:
“We hire the best people and then provide them with an environment that enables them to do their best work.”
Atmosphere conducive to:
Employee health
Quality of life
Productivity
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Green Building

31. Benefits of a Green Building
Energy Efficient
Advanced Technology
Indoor Air Quality
Minimize Waste
Thermal Comfort
Resource Efficiency
Minimize waste: excavated material is crushed for use as backfill and parking lot base
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Green Building

32. LEED™ Certification Two leading categories of LEED™ rated buildings
Owner Type – Profit Organization
Building Type – Commercial Office
Minitab is environmentally conscious
Public respect
Employee morale
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Green Building

33. LEED™ Certification Points required for LEED™ Certification 26 – 32
Category
Total
Possible Points
Minitab
1. Sustainable Sites 14 3
2. Water Efficiency 5 4
3. Energy and Atmosphere 17
2-11
4. Materials and Resources 13 2
5. Indoor Environmental Quality 15 9
6. LEED Innovation Credits
1-4
TOTAL: 69
22-33
Points required for LEED™ Certification
26 – 32
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Green Building

34. Green Building Associated Benefits
Significant gains in worker health
Improved satisfaction
Increased productivity
Higher profits
Decreased employee turnover
Added value to corporation and building.
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Green Building

35. Presentation Outline Project Description Cladding System
Mechanical System
Green Building
Summary & Conclusions
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Presentation Outline

36. Summary & Conclusions Precast Panel Cladding Alternative
Maintain Clean Appearance
Maintain Energy Efficiency
Increase Schedule by 10 days
Overall Savings $55,512
15 %
Geothermal Heat
Pump Alternative
Eliminate Design Conflicts
No Effect
First Cost Savings $200,000
12 %
LEED™
Certification
Improved Building Function
Added value to corporation and building
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Summary & Conclusions

37. Acknowledgements AE Faculty AE Classmates Family & Friends
Alexander Constructors, Inc.
Minitab, Inc.
Erin E. Hess
Construction Management
Senior Thesis Project
Minitab Headquarters
Acknowledgements

38. Questions Questions Erin E. Hess Construction Management
Senior Thesis Project
Minitab Headquarters
Questions