County of Tuolumne Building and Safety Division 2013

County of Tuolumne Building and Safety Division 2013 California Code Updates Meeting Number 2: General Code Update

Instructor: Doug Oliver, Chief Building Official County of Tuolumne • Course Intent: – To provide an overview of the significant changes to the California Building Standards – Identify new code provisions and State amendments. – Identify new legislation effecting local construction.

• Course Outline: – Building Code – Plumbing Code • New Legislation – – Mechanical Code Electrical Code Energy Code Green Building Standards

In order to make this quick……. • Skipping the code sections. • Skipping the minor stuff. • Skipping the clarifications to stuff we already know. • Skipping the stuff that is not usually built in this region

Building Code • A ton of little changes. • Several items removed and referenced to other documents: • Double Fire Walls allowed. • Ten Year Lifespan on Smoke Detectors

Building Code • Green Building Standards inserted and referenced in the CBC. – – – Waste reduction Storm water Interior finish products (VOC) Required mechanical ventilation in bathrooms Green Building Standards now enforced on additions/remodels.

Building Code • Solar Power – Panels on roof with no usable space not counted as an addition story for maximum height calculations. – PV structures exempt from sprinklers if no usable space underneath. – All solar equipment on roof must now meet general fire requirements (1505. 1 or UL 1703). – Ballasted PV system design added to chapter 16 – SOLAR INSTALLERS: STUDY sec. 1505 through 1511. 1. 1

• For Engineers: – Occupancy Category changed to Risk Category. – Strength design load combo’s have been coordinated with Section 2. 3 of ASCE 7 -10 and include fluids, other lateral pressures, and ice. – Allowable Stress Design coordinated with ASCE 7 -10 – Table 1607. 1 updated (minimum live loads) – Wind speed and Seismic acceleration maps updated. – Seismic now references Risk Targeted Maximum Considered Earthquake (MCEr) Ground Motion Response Accelerations

More engineer fun • Table 1607. 1 revised • Uninhabitable attic with storage in 1 and 2 family now 20 lb live load. • Wind Loads now based on ASCE 7 -10 • Wind Maps based on Ultimate Design Wind Speed = Vult • Substantial rewrites of Chapters 16 and 17 – See table 1705. 2. 2 and 1705. 3 • Simplified design methods for single story masonry buildings – TMS 403 -10 • Table 1604. 3 clarifies deflection limits for structural members.

More more engineering fun • Retaining and Foundation walls in Seismic Design Categories D, E, and F exempt from Geotechnical Report if supporting no more than 6 feet of backfill. • AISI S 110 now referenced in the code for Cold-Formed Steel Design. • Rules Omission: 3 x members at panel edges for 2” nailing omitted from code and Section 4. 3. 7. 1 of SDPWS-08 (It didn’t leave, it moved).

Egress • Stairway provisions clarified to apply to ALL stairways for occupied areas of the building. • Window Guards for dwellings = if over 72” above grade and less that 36” above finished floor, window opening max 4”

Accessibility • Revised in its entirety • 11 A revised to incorporate language from the new 11 b and 2010 ADA • 11 B revised using same format as 2010 ADA. • Change references: – http: //www. hcd. ca. gov/codes/shl/2013 codeado ptproj_part 2. html. – http: //www. dgs. ca. gov/dsa/Programs/prog. Acc ess/access 2013/aspx

Interior Environment • Attic Ventilation Clarified – 1/150 or 1/300 if either • Greater than 40% but less than 50% vent area in the upper portion of attic • Mechanical ventilation required in bathrooms

Hazardous Locations (glazing) • All the same material from last powerpoint reproduced in the 2013 CBC. • Copies available.

Water Resistive Barriers

Plumbing Changes • Greywater Update – Chapter 16 – HCD – Chapter 16 A - DWR • Rainwater Catchment Systems – Permit exemptions for drip irrigation less that 5, 000 gal and not over 2/1 Height to Width Ratio, or spray irrigation less than 360 gallons.

New Law #1 • For all additions, remodels, and new structures. ALL plumbing fixtures must be low-flow: Toilets – 1. 6 gal/flush Urinals – 1 gallon/flush shower heads – 2. 5 gallons/minute interior faucets – 2. 2 gallons/minute

New Law#2 Contractors License Law • Licensed Plumbers may now install sprinkler systems – – Starting January 2014 Only on one and two family dwellings Only until January 2017 Only if they want to!

Electrical Code • Existing building exemption to 6 ½ foot working clearance. (200 amp or less) • Posting identification means for branch circuits in panel boards now required. – Especially where different systems originate • Exemptions to arc-fault circuit breakers – Arc-fault outlet protecting circuit allowed if using RMC, IMC, EMT, Type MC or AC and first box is metal and bonded. – Also allow if Metal conduit buried in 2 inches if concrete.

GFI clarification • Exemptions for dedicated snow melting/deicing circuits • (dwelling units)Within 6 ft of sinks, located in areas other than the kitchen. • (other than dwelling units) – Indoor wet locations – Locker rooms w/associated show facilites – Garages, service bays, and similar uses where diagnostic equipment, electrical tools, or portable lighting are to be used

Countertop clarification • Kitchen sink divides countertop into separate spaces if closer than 12” to wall – 18” for corner sinks – Counts for peninsula and island sink. Measure amount of counter space behind sink. – Includes permanently installed ranges and cooking units.

Electrical fun-facts • Bathroom and kitchen outlets can be installed in the counter top if listed for the purpose. • If any accessory building is provided with electrical power, at least one receptacle is required. (yes, it must be GFI and 18” above the floor) • All raceways entering a building from an underground distribution system must be sealed, whether or not they are used.

For electricians: • Study 2013 Electrical Code sections 225. 52 “disconnecting means” and 56 Inspections and tests – a lot of text differences in this area. • On anything bigger than a house, please have all test reports available for the Building Inspector at the appropriate inspection.

Back to the fun facts: • 3 ft roof top clearance reduction for service drops now allowed on “isolated” or “guarded” rooftops. • If service disconnecting means exceeds six locations for multi-occupancy buildings, Suitable graphics, on placards, are required to be placed within sight of the equipment showing the locations of all disconnects. – Study 230. 2, 40, 71, and 72 understand service conductors vs. service entrance conductors.

Warning! • Article 250 has many clarifications and language changes. To much for today's training. To much for a 2 hour class. Seek a trained trainer! Or wait for me to figure it out and provide training! (see you in 3 years)

Electrical summary • We covered less than 10% of the little tweeks to the electrical code. Many changes do not effect 90% of the construction in this County. At the same time, this is one of the most important codes to understand. Expect growing pains on this, I encourage debate!

Energy Code • Hers Rater is required to be employed on all projects over 300 square feet. – Required on less than 300 square feet if replacing HVAC or over 40 ft of ducting. • All documents must be registered with the State. • Many of the trade-offs from the previous code cycle are now mandatory measures.

GOOD NEWS EVERYONE! Energy Code Enforcement is delayed to July 1, 2014. Applies to parts of Calgreen as well

Questions?