Raising the Bar- Houston

Transcription

1 City of Houston Code Enforcement Raising the Bar- Houston CATEE Conference Galveston, TX October 10, 2012 Sheila Blake MBA, CBO, LEED AP Assistant Director, PWE Planning and Development Services 1

2 Houston Code Enforcement Annual Permits Sold = 179,376 Staff = 364 Inspections Performed = 425,027 Construction Valuation = $2.47 B Services Plan Review: 11 day Inspections: Next business day Licensing Online Permitting Inspections Web Scheduling Ombudsmen/Seminars Green Building Resource Center 2

3 Green Building Resource Center Offering the public green building strategies 50+ educational displays LEED Gold Green Building Tours / Green Building Classes Educational website: 3

4 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 4

5 Past Houston Energy Codes COMMERCIAL 2004 ASHRAE Effective: 8/1/2008 RESIDENTIAL + 15% 2009 IRC Chapter IECC Residential Provisions Effective: 10/1/2009 5

6 Current Houston Energy Codes COMMERCIAL 2009 IECC Commercial Provisions 2007 ASHRAE 90.1 RESIDENTIAL + 5% (per year) 2009 IECC Residential Provisions + 5% Houston Mayor Annise Parker: Improving buildings to reduce their energy use and carbon emissions is good practice and good economics. - Accepting Conference of Mayor s 2011 Climate Award 6

7 Energy Code Adoption 7

8 Residential Energy Code RESIDENTIAL + 5% 2009 IECC Residential Provisions + 5% Above Code Effective 1/1/12 Attic stair insulation R5 reduction for safety Air leakage testing for envelope and ducts Eliminates fire place gaskets for safety SHGC average kept at 0.40 Solar Ready component 8

9 Residential Energy Code KEY CHANGES Although window ratios were changed to floor area measures familiar to builders kept option for Windowto- Wall Ratio Three options - prescriptive, "UA" average for envelope, and performance with mandatory provisions No caulking the building envelope sealants OK Limited historical exemption to only items of historical significance Mechanical and Plumbing piping insulation reinserted from current code 9

10 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. 10

11 Residential Energy Code 11

12 Residential Energy Code 12

13 Residential Energy Code 13

14 Residential Energy Code AFFORDABLE HOUSING ENERGY LEAKAGE TEST REIMBURSEMENTS Reimbursement for blower door and duct blaster testing $125 each up to $250 per home Home sales price up to $175,000 Requires HUD closing statement Copy of testing reports by registered Third Party Technician No other funding from City for energy efficiency 14

15 Commercial Energy Code COMMERCIAL 2009 IECC Commercial Provisions 2007 ASHRAE 90.1 Effective 9/2/11 More options for compliance Mayor s office is clear that we should not go backwards Review ASHRAE first and match amendments to IECC Most amendments copied to IECC except lighting controls copied from IECC. Added Cool Roof Guideline to appendix 15

16 Commercial Energy Code KEY AMENDMENTS Cool Roofs Minimum reflectivity met with cost effective methods that reduce solar heat gain passed into the building Roof curbs required to be insulated to the same R-value as the roof or minimum R-8. Vestibule entries for tall buildings Historical exemption only for provisions that affect historical designation Building Envelope and HVAC System Commissioning 16

17 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/

18 Commercial Energy Code KEY AMENDMENTS No lighting exemption for < 50% lighting replacement, but only new fixtures must comply ECM motors required for serial flow VAV fans Duct insulation simplified to inside or outside of the building envelope Certified air balancing per AABC or NEBB Piping Insulation increased in size (mech & plumb) and length (plumb hot water) 18

19 Houston Cool Roof Code 19

20 Cool Roofs Commercial Buildings with Low Slope Roofs up to 2:12 New and Replacement Solar Reflectance 0.70 Thermal Emittance 0.75 George R. Brown Convention Center -20

21 Enforcement PLAN REVIEW Houston Accepts Software Report or Energy Form Commercial ComCheck is Most Common Compliance Tool Also: Energy Guage or DOE2 Residential: ResCheck or IC3 accepted INSPECTIONS All inspections done by City Residential blower door and duct blaster tests by 3 rd party Separate insulation inspection as needed. 21

22 Resources SHEILA BLAKE LISA BROWN Green Building Resource Center Code Enforcement Mayor s Office of Environmental Programming web site: CoH Emission Reduction Plan: 22