Green Codes & IGCC Update

Transcription

1 City of Houston Code Enforcement Green Codes & IGCC Update CATEE Conference Dallas, TX November 9, 2011 Sheila Blake MBA, CBO, LEED AP Assistant Director, PWE Planning and Development Services 1

2 Houston Code Enforcement Permits Sold FY11 = 108,301 Staff = 381 Inspections Performed FY11 = 614,925 Construction Valuation FY11 = $1.86 B Services Plan Review: 11 day Inspections: Next day Licensing Online Permitting Web Scheduling Ombudsmen/Seminars Green Building Resource Center 2

3 Green Building Resource Center Offering the public green building strategies 41 educational displays LEED Commercial Interior Gold Certified-Moved Green Building Tours / Green Building Classes Educational website: 3

4 City Initiatives Permitting LEED Incentives / LEED Trained Reviewers 5 Star Energy Efficiency Program Class B Office Upgrade Reimbursements Tax Incentive for LEED Building Infrastructure Design Manual-Low Impact Design (LID) City Buildings Energy Star Program City Buildings EE Retrofit Performance Contracting Curbside Recycling (105K Single Stream/150K Dual Stream) Compostable Bag (Yard Waste Diversion) Weatherization REEP Program > 10,000 homes LED Traffic Lights 50 MW Wind Power (33% Portfolio) Solar Powered Generators Hybrid Vehicle Fleet EV Charging Station Grid Reuse Warehouse Brownfields Municiple Setting Designations Waterworks Museum 1Million Trees / Community Gardens Green Office Challenge > 300 Participants Lights Out Houston 4

5 Code Adoption in Houston TYPICAL CODE CYCLE - 3 YEAR Step 1: Building Official Request to CIC Step 2: Construction Industry Council Committees AIA, ABC, AGC, BOMA, HAA, USGBC Final recommendation from CIC Step 3: Legal Department, TAMU, Publisher Step 4: City Council Effective Time periods 60 Days Typical, 30 Days State 5

6 IBC Material Reuse APPENDIX R 6

7 IBC Material Reuse General Exclusions: APPENDIX R 1. Energy Code 2. TAS- Texas Accessibility Standards 3. Structural Applications - Plans Stamped by Engineer. 4. Structural Applications - Inspected by Engineer 5. Not Allowed in Fire Assemblies Unless Tested or Marked 6. EPA Act of 1995 (Low Flow Fixtures) 7. Not Driveways and Sidewalks in Right-of-Way 8. Structural Steel should be Marked Phoenix Commotion Huntsville 7

8 Houston UMC / UPC Mechanical Ventilation Tables Optimize Energy Metal Ducts Required, No Duct Board or Flex Plumbing Building Code Requires High Efficiency Fixtures (Water closets either dual flush or high efficiency) (Urinals non-water type or high efficiency) Chapter 16 Added: Non-potable Gray Water Reclaimed and Treated Water Rainwater Catchment Systems Appendix R Future Potable Use of Rainwater 8

9 Commercial Energy Conservation Code KEY AMENDMENTS Cool Roofs Minimum reflectivity met with cost effective methods that reduce solar heat gain passed into the building Vestibule entries for tall buildings ECM motors required Piping Insulation increased in size (mech & plumb) and length (plumb hot water) Building Envelope and HVAC System Commissioning 9

10 Cool Roofs Commercial Buildings with Low Slope Roofs up to 2:12 New and Replacement Solar Reflectance of 0.70 Thermal Emittance of 0.75 George R. Brown Convention Center -10

11 Cool Roofs Exceptions Portion of the roof that is a rooftop garden, or green roof or covered by a rooftop deck covering 1/3 or less of the aggregate area of the roof Area including and adjacent to rooftop photovoltaic and solar thermal equipment, totaling not more than three times the area that is covered with such equipment. Guideline 11

12 Building Envelope & HVAC Commissioning FORM Projects Larger Than 50K Sq Feet of Conditioned Area Commissioning Statement Signed & Sealed by the Architect or Engineer Statement Required to be Submitted with Plans; City will not Inspect Commissioning Requirements Commissioning Statement Available Online 6/24/

13 Houston Residential Energy Code 5% ABOVE 2009 IECC 1. Above Code Programs. Such as Energy Star or other above code program. 2. Software and Testing. IC3 Software or other approved simulation software program with duct blaster and blower door tests. 3. Option Packages. Houston Prescriptive Tables approved to show 5% above code compliance. 13

14 Sustainability: Big Picture Codes and Risks

15 Sustainability: Big Picture Codes and Risks

16 IGCC OVERVIEW IGCC is Overlay Code to the Other I-codes No Low Rise Residential in IGCC Requirement Paths: Mandatory Stormwater Management Jurisdictional Requirements - Greenfields Project Electives in Appendix - Strawbale Site Development and Land Use (flood plains / parks ) Material Resource Conservation and Efficiency Energy Water Indoor Environmental Quality and Comfort Commissioning (envelope, site, water, energy) 16

17 IGCC HEARINGS LCA - 5 Attributes are Widely Agreed Project Elective (Global Warming Potential, Acidification Potential, Eutrophication Potential, Ozone Depletion Potential, Smog Potential) Service Life Elective No Time Period Set Sound attenuation Indoors only Commissioning is Required for > 25,000 sq. ft. Native Plants Required in 75% of Landscaping Existing Building Provisions Only for Commissioned Bldgs Removed: Building Owners Manual Indoor Plants Elective Building Flush Out Energy Star Appliances Bldg. Sales Trigger for Existing Building Provisions 17

18 IGCC Energy IGCC 10% Better then 2012 IECC Energy Conservation Based on Source Impact, Not Site Zero energy performance index (zepi) zepi = 57 x (Proposed Design-Renewal Energy-Waste Energy Recovery)/Reference Design Objections from Home Builders, Sign Industry, EPA, Vinyl Institute, Electric and Gas, Wood and Concrete Assn s All new buildings shall provide metering per Section 604, automated-demand response per Section 605, and commissioning per Section 612. Energy Star appliances will not be covered 18

19 City Hall Annex Peak Oil

20 RESOURCES SHEILA BLAKE Green Building Resource Center Code Enforcement Mayor s Office of Environmental Programming web site: CoH Emission Reduction Plan: 20