Chapter 15.04 CONSTRUCTION CODES ADOPTED

Chapter 15.04
CONSTRUCTION CODES ADOPTED

Sections:

15.04.010 Adoption of building codes.

All building and building-related codes as currently adopted, or as shall be adopted in future enactments by the state of Washington pursuant to RCW 19.27.031, together with all amendments as currently enacted, or as shall be enacted by the state of Washington, are hereby adopted as, and are herein referred to as, the building codes for Adams County; provided, that all additions, deletions, and amendments as set forth in this title are also adopted.

For reference purposes only, the current building codes adopted by Adams County consist of the following:

A. International Building Code as published by the International Code Council, Inc., and as amended by the state of Washington, together with Appendix J, “Grading,” and Appendix E, “Supplementary Access,” and together with ICC/ANSI A117.1.

B. International Residential Code as published by the International Code Council, Inc., and as amended by the state of Washington, together with Appendix G, except for Chapters 11 through Chapter 43, which are not adopted.

C. International Mechanical Code as published by the International Code Council, Inc., and as amended by the state of Washington, except that the standards for liquefied petroleum gas installations shall be NFPA 58 (Storage and Handling of Liquefied Petroleum Gases) and ANSI Z223.1/NFPA 54 (National Fuel Gas Code).

D. International Fuel Gas Code as published by the International Code Council, Inc., and as amended by the state of Washington.

E. Uniform Plumbing Code as published by the International Association of Plumbing and Mechanical Officials, Inc., and as amended by the state of Washington, together with Appendices A, B, and I, together with additional standards as adopted by the state pursuant to RCW Chapters 19.27 and 34.05.

F. Washington State Energy Code, WAC Chapters 51-11C and 51-11R, latest state-adopted edition.

G. International Swimming Pool and Spa Code as published by the International Code Council, Inc., and as amended by the state of Washington.

H. International Existing Building Code as published by the International Code Council, Inc., and as amended by the state of Washington.

I. Portions of the International Wildland-Urban Interface Code, published by the International Code Council, Inc., as set forth in RCW 19.27.560 with the following adopted appendices and amendments:

1. Appendix C: Fire Hazard Severity Form.

2. Amendments to the Wildland-Urban Interface code specific to Adams County shall be located in Title 14. (Ord. O-03-21 § 1)

15.04.012 Definitions.

Except where specifically defined herein, all words used in this title shall carry their customary meanings. Words used in the present tense include the future, and the plural includes the singular; the word “shall” requires mandatory action and, when applied to the actions of public officers, directors, the word “may” denotes a use of discretion.

“Addition” means an extension or increase in floor area or height of a building or structure.

“Alter” or “alteration” means a change or modification of a building, structure, or building service equipment.

“Approved,” as to materials, types of construction, equipment, and systems, means and refers to approval by the building official as the result of investigation and tests conducted by the building official, or by reason of accepted principles or tests by recognized authorities, technical or scientific organizations.

“Approved agency” means an established and recognized agency regularly engaged in conducting tests or furnishing inspection services when the agency has been approved by the building official.

“Building” means a structure used or intended for supporting or sheltering a use or occupancy.

“Building official” means the officer or other designated authority charged with the administration and enforcement of code, or regularly authorized deputy thereof.

“Existing building” means a building erected prior to the adoption of Ordinance 15-16, or one for which a legal building permit has been issued and approved.

“IBC” means the latest edition of the International Building Code promulgated by the International Code Council as adopted by this jurisdiction.

“IEBC” means the latest edition of the International Existing Building Code promulgated by the International Code Council as adopted by this jurisdiction.

“IFC” means the latest edition of the International Fire Code promulgated by the International Code Council as adopted by this jurisdiction.

“IMC” means the latest edition of the International Mechanical Code promulgated by the International Code Council as adopted by this jurisdiction.

“IPC” means the latest edition of the International Plumbing Code promulgated by the International Code Council as adopted by this jurisdiction.

“IRC” means the latest edition of the International Residential Code promulgated by the International Code Council as adopted by this jurisdiction.

“Occupancy” means the purpose for which a building, or part thereof, is used or intended to be used.

“Owner” means any person, agent, firm, or corporation having legal or equitable interest in the property.

“Permit” means an official document or certificate issued by the building official authorizing performance of specified activity.

“SBCC” means the Washington State Building Code Council.

“Structure” means that which is built or constructed, an edifice or building of any kind, or any piece of work artificially built up or composed of parts joined together in some definite manner.

“UPC” means the latest edition of the Uniform Plumbing Code promulgated by the International Code Council as adopted by this jurisdiction.

“Valuation” or “value” as applied to a building or building service equipment, means and shall be the estimated cost to build or replace a building and its building service equipment in kind, based on current replacement costs. It shall also include the contractor’s overhead and profit. (Ord. O-03-21 § 1)

15.04.015 General requirements.

Conflict Between Codes. Whenever there is a conflict between a referenced code in Section 15.04.010 and the general requirements contained in this section, the general requirements shall apply.

Table R301.2(1), Climatic and Geographic Design Criteria, of the International Residential Code, is amended as follows:

ROOF SNOW LOAD

WIND DESIGN

SEISMIC DESIGN CATEGORYf

SUBJECT TO DAMAGE FROM

Speedd (mph)

Topographic effectsk 1

Special wind regionl

Wind-borne debris zonem

Weatheringa

Frost line depthb

Termitec

Case study (min. 30 psf roof)1

110 V

ult

Severe

24"

Slight to Moderate

1 Code reviser’s note: Ord. O-03-21 originally read “Topographic efforts.” The text has been changed by the city.

WINTER DESIGN TEMPe

ICE BARRIER UNDERLAY-MENT REQUIREDh

FLOOD HAZARDSg

AIR FREEZING INDEXi

MEAN ANNUAL TEMPj

2° F

Yes

Date Entered Into NFIP: 9/1979,

Date of Current FIRM Maps Adopted: 5/5/1981

1,000-2,000

50° F

For SL: 1 pound per square foot = 0.0479 kPa, 1 mile per hour = 0.447 m/s.

a) Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the structural requirements of this code. The weathering column shall be filled in with the weathering index, “negligible,” “moderate” or “severe” for concrete as determined from Figure R301.2(3). The grade of masonry units shall be determined from ASTM C 34, C 55, C 62, C 73, C 90, C 129, C 145, C 216 or C 652.

b) The frost line depth may require deeper footings than indicated in Figure R403.1(1). The jurisdiction shall fill in the frost line depth column with the minimum depth of footing below finish grade.

c) The jurisdiction shall fill in this part of the table to indicate the need for protection depending on whether there has been a history of local subterranean termite damage.

d) The jurisdiction shall fill in this part of the table with the wind speed from the basic wind speed map [Figure R301.2(4)A]. Wind exposure category shall be determined on a site-specific basis in accordance with Section R301.2.1.4.

e) The outdoor design dry-bulb temperature shall be selected from the columns of 971/2 -percent values for winter from Appendix D of the International Plumbing Code. Deviations from the Appendix D temperatures shall be permitted to reflect local climates or local weather experience as determined by the building official.

f) The jurisdiction shall fill in this part of the table with the seismic design category determined from Section R301.2.2.1.

g) The jurisdiction shall fill in this part of the table with (a) the date of the jurisdiction’s entry into the National Flood Insurance Program (date of adoption of the first code or ordinance for management of flood hazard areas), (b) the date(s) of the Flood Insurance Study and (c) the panel numbers and dates of the currently effective FIRMs and FBFMs or other flood hazard map adopted by the authority having jurisdiction, as amended.

h) In accordance with Sections R905.1.2, R905.4.3.1, R905.5.3.1, R905.6.3.1, R905.7.3.1 and R905.8.3.1, where there has been a history of local damage from the effects of ice damming, the jurisdiction shall fill in this part of the table with “YES.” Otherwise, the jurisdiction shall fill in this part of the table with “NO.”

i) The jurisdiction shall fill in this part of the table with the 100-year return period air freezing index (BF-days) from Figure R403.3(2) or from the 100-year (99 percent) value on the National Climatic Data Center data table “Air Freezing Index-USA Method (Base 32°F).”

j) The jurisdiction shall fill in this part of the table with the mean annual temperature from the National Climatic Data Center data table “Air Freezing Index-USA Method (Base 32°F).”

k) In accordance with Section R301.2.1.5, where there is local historical data documenting structural damage to buildings due to topographic wind speed-up effects, the

l) jurisdiction shall fill in this part of the table with “YES.” Otherwise, the jurisdiction shall indicate “NO” in this part of the table.

m) In accordance with Figure R301.2(4)A, where there is local historical data documenting unusual wind conditions, the jurisdiction shall fill in this part of the table with “YES” and identify any specific requirements. Otherwise, the jurisdiction shall indicate “NO” in this part of the table.

n) In accordance with Section R301.2.1.2.1, the jurisdiction shall indicate the wind-borne debris wind zone(s). Otherwise, the jurisdiction shall indicate “NO” in this part of the table.

(Ord. O-03-21 § 1)