Tacoma State Building

1. Tacoma State Building Sustainability Analysis Ann Coleman Bill Durland Lori Moen Oyvind Naess Stuart Simpson Jeffery Watts

2. Sustainability Analysis The application and suitability of Sustainable Building Techniques for the restoration of an existing urban office building

3. Background and Site

4. Site Selection

5. Site Considerations Alternative Transportation Reduce Heat Islands

6. Mechanical Systems Envelope Natural Ventilation Existing System Upgrades Sustainable Recommendations Commissioning Systems Operations and Management

7. Envelope Wall insulation and glass updated in 1980 Skylight U-factor = 0.50 & SHGC = 0.30

8. Natural Ventilation Existing operable windows Occupant control & connection to the outdoors Upgrade windows Operable pane both high and low

10. Existing Upgrades Existing heat pumps no economizer Added separate heat and vent unit and duct distribution

11. Recommendations VAV with 100% airside economizer Ventilation 20 CFM/person or 0.15 CFM/ft2 Balance IAQ and energy

13. Commissioning of Mechanical Systems Test and balance Functional performance test 30-day purge w/100% OSA

14. Operations and Maintenance Document intent and basis of design Educate operator & tenants

15. Lighting Existing Upgrades General Recommendations Electric Lighting Recommendations Daylighting Recommendations Indoor Environmental Quality

16. Existing Upgrades Efficient Fixtures Office Layout Controls

17. General Recommendations Office Layout Reflective Surfaces Additional Controls Commissioning

18. Electric Lighting Lighting Power Density Fixture Layout Fixture Selection Additional Controls Energy Savings

19. Daylighting Daylighting Potential Additional Glazing

20. Daylighting Light Shelves Additional Controls Energy Savings

21. Indoor Environmental Quality Light Quality v. Quantity Productivity Health Absenteeism Employee Turnover

22. Materials & Resources Recycle Storage and Collection Facilitate reduction of waste generated by building occupants On Site Recycling Lamp Disposal Cardboard and Newspaper Computer and Bond Paper Plastic and Glass Bottles Aluminum Cans

26. Water Planned design Recommended sustainable elements Details of selected sustainable elements Rainwater collection versus Green Roof Interior fixtures

27. Planned vs. Recommended Planned design Standard water using equipment Meets code

28. Planned vs. Recommended Recommended Rainwater collection OR green roof Motion activated faucets Dual-flush toilets Waterless urinals Aerators: less than .5gpm

30. Rainwater Collection Ample storage space 37�/year average rainfall Potential collection 461,000 gal/yr Water & sewer savings: $4,400/yr Possible reduction in storm water fees

31. Rainwater Collection May require water-rights permit Needs to be integrated into existing plumbing May be more cost-effective in future Would like picture of basement here - don�t have one.Would like picture of basement here - don�t have one.

32. Green Roof Suitable for Western Washington Multiple benefits storm water management & treatment increased insulation reduced heat island effect increased roof life provide habitat

33. Green Roof 3� system has least impact on structure Potential to divert 230,000 gal from storm drains Approximate cost is 2x standard roof More engineering required for life cycle costing

34. Waterless Urinals No Water to Flush Requires on-going maintenance Increase ~ $100/fixture Likely to qualify for rebate Savings (12 fixtures) 270,000 gallons/year $2,506/year water & sewer Typical payback in first year

35. Dual-Flush Toilets Two flush modes Liquids (.8-1gal/flush) Solids (1.6 gal/flush) (same as code) Increase ~ $90/fixture Likely to qualify for rebate Savings (48 fixtures) 3 gallons per person per day 35,700 gallons/year $350/year water & sewer Payback ~ 12 years (lower with rebate)

36. Sustainability Analysis The application and suitability of Sustainable Building Techniques for the restoration of an existing urban office building