ClEPi:::'S OFflCt. AO No

Transcription

1 ClEPi:::'S OFflCt ~fill~~ ij'~~ "' ~..-f or J o 1 (t' ANCHORAGE, ALASKA - t ::-.=.=.=.=;:,:...;...:.=-:o._..._ ~ AO No Submitted by: Chair of the Assembly at the Request of the Mayor Prepared by: Office of Economic & Community Development and Department of Law For reading: April, 16 1 AN ORDINANCE AMENDING ANCHORAGE MUNICIPAL CODE CHAPTERS AND 23. TO COMPLETELY CONFORM AO 1-7, AS AMENDED, 3 TO THE INTENT OF A PREVIOUS FLOOR AMENDMENT TO MAKE RESIDENTIAL PROVISIONS OF THE INTERNATIONAL ENERGY CONSERVATION CODE EDITION (IECC) INAPPLICABLE TO 6 RESIDENTIAL CONSTRUCTION BY DELETING ALL THE SUBSTANTIVE 7 RESIDENTIAL PROVISIONS OF THE IECC, THE LOCAL AMENDMENTS THERETO THAT WERE PUBLISHED, AND REFERENCES IN OTHER PROVISIONS OF THE BUILDING CODE, RETROACTIVE TO APRIL 1, 16. WHEREAS, the Municipality of Anchorage first enacted energy conservation standards for residential buildings on January 1, 0 with the adoption of the International Energy Conservation Code (IECC) 06 Edition by 1 AO 07-17; 1 16 WHEREAS, in AO 1-7, as amended, the Assembly repealed and 1 7 reenacted Title 23, Building Codes, of the Anchorage Municipal Code, including adoption of the IECC Edition, with local amendments that deleted some 1 provisions; 21 WHEREAS, a floor amendment the Assembly approved to change the 22 residential provisions of the IECC identified for deletion by local amendment from 23 sections "R2 through R" to "R1 through R01" was implemented as 2 written, but the legislative intent expressed on the record at the February 23, 16 2 Assembly meeting was broader in scope: to delete all residential provisions of the IECC so it is inapplicable to all residential construction; 2 WHEREAS, to effectuate the legislative intent by the aforementioned floor 2 amendment, the code provisions adopted by AO 1-7, as amended, need to 3 o be further amended to (1) delete the substantive residential provisions of the IECC 31 which were left intact (sections R02 through R0, "Building Thermal Envelope", 32 "Systems", "Electrical Power and Lighting Systems (Mandatory)" and "Simulated 3 3 Performance Alternative (Mandatory)"), (2) delete the local amendments to the 3 residential provisions of the IECC that, by this amendment, are not being adopted, 3 and (3) delete the reference to the IECC contained in the International Building 3 6 Code, AMC chapter 23.; 3 s WHEREAS, the Office of Economic and Community Development, 3 Development Services Department, and Municipal Attorney's Office reviewed the o inconsistency between the written amendment, the final published AO as amended, and the record of the Assembly meeting, and recommends this

2 AO deleting IECC application to Residential Buildings Page 2 of 1 curative ordinance to fully implement the intent of the aforementioned floor 2 amendment at the February 23, 16 Assembly meeting; now, therefore 3 THE ANCHORAGE ASSEMBLY ORDAINS: 6 Section 1. Anchorage Municipal Code chapter is hereby amended to read 7 as follows (the remainder of the chapter is not affected and therefore not set out): 1 CHAPTER LOCAL AMENDMENTS TO THE INTERNATIONAL ENERGY CONSERVATION CODE EDITION *** *** *** R1-R0 [1] [SECTIONS]. Delete all IECC Residential Provisions 1 Delete the IECC Residential Provisions. The IECC shall not apply to 16 residential buildings [SECTIONS R1 THROUGH R01. REFER TO THE 1 7 ANCHORAGE ADMINISTRATIVE CODE]. 1 (AO No. 1-7, 1, -1-16) 21 [23.60.R INSULATION PRODUCT RA TING. 22 ADD THE FOLLOWING EXCEPTION: 23 2 EXCEPTION: A MEAN TESTING TEMPERATURE OF 0 F IS ACCEPTABLE FOR 2 DEMONSTRATING COMPLIANCE WITH THIS CODE R01.3 CERTIFICATE (MANDATORY). 2 ADD THE FOLLOWING EXCEPTION: EXCEPTION: A CERTIFICATE IS NOT REQUIRED FOR ADDITIONS, ALTERATIONS, 31 RENOVATIONS, AND REPAIRS TO AN EXISTING BUILDING TABLE R INSULATION AND FENESTRATION REQUIREMENTS BY 3 COMPONENT. 3 TABLE R INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT CLIMATE ZONE 7 COMPONENT R-VALUE (MINIMUM) FENESTRATION 3.1 SKYLIGHT 1. CEILING WOOD FRAME WALL 21 MASS WALL 21 FLOOR 3 BASEMENT WALL 1 CONTINUOUS OR 1 CAVITY SLAB FOR 36 INCHES VERTICALLY ALONG PERIMETER SLAB, HEATED UNDER ENTIRE SLAB AND FOR 36 INCHES VERTICALLY ALONG PERIMETER

3 AO deleting IECC application to Residential Buildings Page 3 of I CRAWLSPACE WALL I 1 CONTINUOUS OR 1 CAVITY TABLE R EQUIVALENT LI-FACTORS. 3 REPLACE TABLE R WITH THE FOLLOWING: COMPONENT FENESTRATION SKYLIGHT CEILING WOOD FRAME WALL MASS WALL FLOOR BASEMENT WALL SLAB SLAB, HEATED CRAWLSPACE WALL TABLE R EQUIVALENT LI-FACTORS CLIMATE ZONE 7 EQUIVALENT MAXIMUM LI-FACTOR OR F-FACTORA U-0.32 U-0. U-0.0 U-0.07 U-0.07 U-0.0 U F-0.1 F-0. U A USE OF OPAQUE ASSEMBLY Li-FACTORS, C-FACTORS AND F-FACTORS FROM ANSl/ASHRAE/IESNA 0.1 APPENDIX A IS PERMITTED, PROVIDED THE CONSTRUCTION COMPLIES WITH THE APPLICABLE CONSTRUCTION DETAILS FROM ANSl/ASHRAE/IESNA 0.1 APPENDIX A R CEILINGS WITH ATTICS. 7 AMEND SECTION R BY ADDING THE FOLLOWING EXCEPTION: EXCEPTION: R-3 FIBERGLASS BLANKET INSULATION MAY BE COMPRESSED AT THE EAVE TO PROVIDE A 1. INCH AIR SPACE WHEN INSTALLED BETWEEN WOOD TRUSSES HAVING A MINIMUM HEEL HEIGHT OF.2 INCHES R02.2. CRAWL SPACE WALLS. 1 DELETE SECTION R02.2. CRAWL SPACE WALLS R GLAZING LIMITATION. 1 7 ADD THE FOLLOWING SECTION: 1 R GLAZING LIMITATION. GLAZING SHALL BE LIMITED TO % OF THE 2 0 CONDITIONED FLOOR AREA R TESTING. 23 AMEND SECTION R BY ADDING THE FOLLOWING EXCEPTION: 2 2 EXCEPTION: TESTING IS RECOMMENDED BUT NOT REQUIRED R02.6 CRAWL SPACE. 2 ADD THE FOLLOWING SECTION: R02.6 CRAWL SPACE (MANDATORY).

4 AO deleting IECC application to Residential Buildings Page of R UNCONDITIONED CRAWL SPACE. WHEN A CRAWL SPACE IS VENTILATED TO THE EXTERIOR BY NATURAL MEANS IN ACCORDANCE WITH IRC SECTION R0.2, THE FLOOR SEPARATING THE CRAWL SPACE FROM THE LIVING AREA SHALL BE INSULATED IN ACCORDANCE WITH SECTION R02.1. THE CRAWL SPACE SHALL NOT BE HEATED. R CONDITIONED CRAWL SPACE. WHEN A CRAWL SPACE IS VENTILATED BY MECHANICAL MEANS IN ACCORDANCE WITH IRC SECTION R0.3, THE CRAWL SPACE WALLS SHALL BE INSULATED IN ACCORDANCE WITH SECTION R02.1. THE FLOOR OF THE CRAWL SPACE SHALL BE COVERED IN ACCORDANCE WITH IRC SECTION R R02.7 VENTILATION ADD THE FOLLOWING SECTION: R02.7 VENTILATION (MANDATORY). VENTILATION SHALL COMPLY WITH ANSI/ASH RAE STANDARD 62.2-, INCLUDING ADDENDA. WHERE THERE ARE CONFLICTS BETWEEN AN ADOPTED CODE AND THIS STANDARD, THE ADOPTED CODE SHALL APPLY R BUILDING CAVITIES (MANDATORY). DELETE SECTION R BUILDING CAVITIES MAY BE USED AS PLENUMS IN ACCORDANCE WITH THE IRC OR IMC, AS APPLICABLE R03.3 MECHANICAL SYSTEM PIPING INSULATION. INSERT THE FOLLOWING EXCEPTION UNDER SECTION R03.3: EXCEPTION: PIPING INSTALLED WITHIN THE BUILDING THERMAL ENVELOPE R03.6 EQUIPMENT SIZING (MANDATORY). AMEND SECTION R03.6 BY ADDING THE FOLLOWING: EQUIPMENT SHALL BE SIZED TO MEET THE LOAD AND OVER SIZING SHALL NOT EXCEED PERCENT. WHEN THIS IS NOT FEASIBLE GIVEN THE DISCRETE SIZE OPTIONS AVAILABLE, EQUIPMENT DELIVERING THE SMALLEST OUTPUT WHILE SATISFYING THE CALCULATED LOAD SHALL BE USED R0.3 PERFORMANCE BASED COMPLIANCE. ADD THE FOLLOWING EXCEPTION: EXCEPTION: COMPLIANCE MAY BE DEMONSTRATED THROUGH A HOME ENERGY RATING UNDER A PROGRAM APPROVED BY THE ALASKA HOUSING FINANCE CORPORATION (AHFC) THAT MEETS THE FOLLOWING: 1. A MINIMUM FIVE-STAR RATING IS REQUIRED. 2. THE MAXIMUM AIR INFILTRATION RATE SHALL NOT EXCEED FOUR AIR CHANGES PER HOUR AT 0 PASCALS PRESSURE DIFFERENCE. 3. THE COMPLIANCE RATING SHALL BE PERFORMED BY A PERSON AUTHORIZED BY AHFC.

5 AO deleting IECC application to Residential Buildings Page of 1 COMPLIANCE WITH SECTIONS R0. THROUGH R0.6 IS NOT REQUIRED.] 2 3 (AO No. 1-7, 1, -1-16) Section 2. Anchorage Municipal Code chapter is hereby amended to read 6 as follows (the remainder of the chapter is not affected and therefore not set out): 7 CHAPTER 23. LOCAL AMENDMENTS TO THE INTERNATIONAL RESIDENTIAL CODE EDITION 23..R0 Local amendments to the International Residential Code. 1 The amendments to the International Residential Code are listed 1 hereafter by section. The last digits of the number (after the title and chapter 16 digits) are the section of the International Residential Code to which the 17 amendments refers, i.e., 23..R3 refers to amendments to Section R3 of the International Residential Code. 1 *** *** *** chapter Energy Efficiency [N.1 Scope]. 2 2 Delete Chapter. The energy efficiency provisions of the I RC and 23 residential provisions of the International Energy Conservation Code. 2 Edition. shall not apply to residential buildings [ADD THE FOLLOWING PARAGRAPH TO THIS SECTION: 2 7 REFERENCE AMC CHAPTER FOR ALL AMENDMENTS TO THIS CHAPTER. 2 LOCAL AMENDMENTS SHOWN IN APPLY TO THE REFERENCED SECTION 2 IN PARENTHESES OF THIS CHAPTER.] Chapters Amend by deleting in their entirety Energy Efficiency, Mechanical, Plumbing 3 3 and Electrical, except specific sections referenced by the adopted provisions 3 of this code. 3 *** *** * ** 36 (AO No. 1-7, 1, -1-16) 3 Section 3. This ordinance shall be effective retroactive to April 1, PASSED AND APPROVED by the Anchorage Assembly this }Of-h day of ~.c-), 16. ATIEST: Municipal Clerk