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

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

Project Description Headquarters for Minitab, Inc. Developer of data analysis software Location: State College, PA Construction: June 2001 – December 2002 Size: Site 16.8 acres Facility 88,000 SF Cost: $ 14 Million Erin E. Hess Construction Management Senior Thesis Project Minitab Headquarters Project Description

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

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

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

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

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

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

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

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

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 studs @ 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

Precast Installation Cost Precast Concrete Cost per square foot Metal studs, non-loadbearing galvanized @ 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

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

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

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 studs @ 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

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

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 + 1.6 LL 170,219 183,996 Erin E. Hess Construction Management Senior Thesis Project Minitab Headquarters Cladding System

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

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

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

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

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

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

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

Mechanical System 100% Outdoor Air – Geothermal System Energy-efficient Environmentally clean Cost effective Minitab Geothermal System 40,000 lf of pipe – 100 wells @ 400 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

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

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

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

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

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

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

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

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

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

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

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

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