The Nevada County Community D l Development t Agency A & Nevada N d C County t Contractors Association Presents 2013 CA Code C d Update U d t Introductions Craig C i G Griesbach i b h Director of Building Community Development Agency (CDA) (530) 265-1583 craig.griesbach@co.nevada.ca.us i i b h@ d Other Staff Contacts Steve DeCamp Director of CDA Community Development Agency (CDA) (530) 265-7158 steven.decamp@co.nevada.ca.us Rodney McClung Permit Processing Technician Community Development Agency (CDA) (530) 265-7061 rodney.mcclung@co.nevada.ca.us Jim Swanson Supervising Building Inspector/Plans Examiner Community Development Agency (CDA) (530) 265-1542 jim.swanson@co.nevada.ca.us Monte Gillan Permit Processing Technician Community Development Agency (CDA) (530) 265-1571 g @ monte.gillan@co.nevada.ca.us Dan Sciacca Plans Examiner Community Development Agency (CDA) (530) 470-2538 dan.sciacca@co.nevada.ca.us Richard Bucher Building Inspector I Community Development Agency (CDA) (530) 265-1543 richard.bucher@co.nevada.ca.us Stacy Manning Permit Processing Assistant II Community Development Agency (CDA) ((530)) 265-1524 stacy.manning@co.nevada.ca.us Valorie Wilcock Administrative Analyst II y Development p Agency g y ((CDA)) Community (530) 265-1554 valorie.wilcock@co.nevada.ca.us Andreas Theisen Temporary Building Inspector Community Development Agency (CDA) (530) 265-1406 andreas.theisen@co.nevada.ca.us Please Ask Questions Your Participation is Important Goal of Workshop Outline 1) Informational Handouts 2) 2013 California Building Standard Codes 3) Overview of Changes: -2013 California Building Code -2013 California Residential Code -2013 California Electrical Code -2013 California Plumbing Code -2013 California Mechanical Code -2013 California Fire Code -2013 California Green Building Standards Code -2013 California Energy Code 4) Senate Bills that Affect You 5) Top T 20 C Corrections ti 6) Questions? Informational Forms Please Review all Informational Forms on the Side Tables; Some of the Forms Include: •Substantial Substantial Code Change Brochures •SB 407 Informational Brochure •SB 407 Enforcement Policy •Building Permit Application Handbook •Residential Solar Photovoltaic Submittal Checklist •Solar Photovoltaic Module Fire Classification Policy •Smoke/Carbon Monoxide Alarm Affidavit •Who Can Prepare p Plans Handout •Fire Sprinkler Fact Sheet 2013 California Codes •2013 California Building Code, (Volume 1 & 2) •2013 2013 California Fire Code •2013 California Green Building Standards Code •2013 California Residential Code •2013 California Electrical Code •2013 California Plumbing Code •2013 2013 California Mechanical Code •2013 California Historical Building Code •2013 California Existing g Building g Code •2013 California Energy Code 2013 California Energy Standards 2013 California Codes The California Codes can be Viewed Online at: www.bsc.ca.gov/codes Alternate link to Codes also on our Website: https://law.resource.org/pub/us/code/bsc.ca.gov/ 2013 California Codes All Codes are Effective as of January 1, 2014 EXCEPT: The 2013 California Energy Code which will be effective as of July 1, 2014 Further Information If you would like further or more in depth information on the following 2013 Code changes do not hesitate to come and ask the Nevada County Building Department staff after f this presentation or any other time. 2013 California Building Code Substantial Changes PLEASE KEEP IN MIND THAT THIS IS NOT A COMPLETE LIST OF CHANGES IN THE 2013 CODES What was the first “Building g Code” known in existence? Code of H Hammurabi bi in i 1772 BC 2013 California Building Code Fences allowed to be 7ft in height without building permit (105.2) Keep in mind a Use Permit is still required for fencing over 6ft in height 2013 California Building Code Food processing kitchens and commercial kitchens not associated with restaurants restaurants, dining, etc are classified as an F-1 occupancy 2013 California Building Code Specific fire wall, fire barriers, etc labeling requirements (703.7): (703 7): •Required in accessible floor, ceiling and/or attic areas •Within 15ft of wall ends not exceeding g 30ft o.c. •Min. 3 inch high lettering stating, “FIRE AND/OR SMOKE BARRIER BARRIER-PROTECT PROTECT ALL OPENINGS OPENINGS” 2013 California Building Code New table for opening protective q ((more detailed)) ((T-716.5)) requirements 2013 California Building Code Information added for Fire p Rooms ((901.8): ) Sprinkler Pump and •Shall be large enough to easily service equipment •Access door shall be large enough to remove equipment 2013 California Building Code Revised fire sprinkler requirements for M and S 1 occupancies with upholstered furniture S-1 and over 5,000sf (903.2.7). 2013 California Building Code Revised Smoke Alarm Requirements (907): •10yr 10yr battery required as of July 1, 2014 •10yr old detectors replaced with new •Min. Mi 20ft from f cooking ki appliances •Min. 3ft from openings into bathroom, supply/return registers and ceiling fans fans. 2013 California Building Code Newly installed smoke alarms are not required to be physically interconnected if listed wireless detectors are installed and all sound upon activation (907) 2013 California Building Code Reduced egress width calculation if fire sprinklers are installed (1005) Factor of .2 for stairways Factor of .15 for all other egress components 2013 California Building Code Revised common path of travel requirements i t 2013 California Building Code Revised route/path of travel measurement (1016 3) (1016.3) 2013 California Building Code Polypropylene (Vinyl) sided buildings shall b setback be tb k ffrom other th buildings b ildi a minimum i i of 10ft. (1404.12) 2013 California Building Code Exterior masonry veneer shall have a weep screed d iinstalled t ll d with ith required i d concrete/ground clearances (1405.10.1) 2013 California Building Code Added fire classification requirements for photovoltaic solar modules based on the type of building construction 2013 California Building Code Disabled Accessibility Chapter 11B Entire chapter modified to be more consistent with Federal Standards (2010 ADA St Standards) d d ) 2013 California Building Code Disabled Accessibility Chapter 11B One (1) van accessible parking space required for every 6 accessible spaces (11B 208 2 4) (11B-208.2.4) (Used to be 1 for every 8) 2013 California Building Code Disabled Accessibility Chapter 11B Handrail graspable dimension revised to 1.25”-2” 2013 California Building Code Disabled Accessibility Chapter 11B Van accessible parking unloading zone alternate (11B-502.2): 5ft 9ft 12ft 8ft 2013 California Building Code Disabled Accessibility Chapter 11B Parking stall unloading zone allowed on both sides except for van parking stalls (11B-502.3.4) 2013 California Building Code Disabled Accessibility Chapter 11B Accessible parking stall signage shall be mounted a minimum of 60” 60 above grade level regardless of location (11B-502.6) 2013 California Building Code Disabled Accessibility Chapter 11B Toilet centerline shall be between 17”-18” from the nearest wall/partition (11B-604 (11B-604.2) 2) 2013 California Building Code Disabled Accessibility Chapter 11B Minimum Mi i 9” hi high h clear l space shall h ll b be provided at side or end of toilet stall (11B-604.8.1.4) 2013 California Building Code Disabled Accessibility Chapter 11B Grab G b bars b allowed ll d tto b be mounted t d 33” 33”-36” 36” above the floor for toilets regardless of tank type and “L” grab bars allowed(11B-609) 2013 California Building Code Disabled Accessibility Chapter 11B Multiple M lti l changes h tto allow ll ffor a diff differentt range of shower compartments, seats, grab bars, etc. 2013 California Building Code Disabled Accessibility Chapter 11B Changes for Ch f Sign Si Mounting M ti Locations/Heights Bathroom door signs mounted 58”-60” to sign centerline 2013 California Building Code Disabled Accessibility Chapter 11B T Truncated t d domes d shall h ll b be setback tb k ffrom curb b edge 6”-8” Exception: Parallel Curb Ramps 2013 California Building Code Disabled Accessibility Chapter 11B Alt Alternate t service i counter t option ti for f existing i ti buildings if hardship New installations are 36” wide minimum 2013 California Building Code Multiple structural changes/additions due to changes in ASCE 7-10 Updated structural codes are: •ASCE 7-10 (Structural Design Manual) •ACI 318-11 (Concrete) ( ) •ACI 530-11 (Masonry) 2013 California Building Code Wind speed calculations are now based on an Ultimate Ulti t Wind Wi d Speed S d (3-second (3 d gust) t) USGS maps revised i db based d on updated d t d seismic and fault data 2013 California Building Code Added information in g ASCE allowing Performance-Based Design (analysis, testing, peer review, etc) 2013 California Residential Code Overview Code that covers all one-and-two family dwellings, townhouses less than 4 stories in height, and live/work units complying with Section 419 of the 2013 California Building Code. 2013 California Residential Code Subdivisions allowed to have zero (0) setbacks if 6ft on other property line without firewalls or protected openings (T-R302.1(2)) Keep in mind to check with Planning regarding specific zoning requirements 2013 California Residential Code Bathrooms shall be mechanically vented for humidity (R303.3) 2013 California Residential Code Added Efficiency Dwelling Unit standards into Residential Code (R304.5) 2013 California Residential Code Glazing within 5ft horizontally of bathtubs bathtubs, showers showers, etc and less than 5ft above the floor shall be tempered (R308 4 5) (R308.4.5) Glazing within 3ft vertically & 6ft horizontally of stairs, ramps and landings shall be tempered (R308.4.6) 2013 California Residential Code Solar Photovoltaic Systems: Roof & Ground Clearance requirements added: Ground vegetation clearance of 10ft for ground mount 2013 California Residential Code Fire protection of under-floor & basement areas with ½” ½ sheetrock, sheetrock 5/8” 5/8 sheathing or equivalent unless: •There Th are nott any ffuell b burning i appliances li iin u/f /f or basement area •Fire Sprinklers installed in u/f or basement area •Area Area not over 80sf and fire blocked •2x10 or larger nominal lumber is used for floor framing material 2013 California Residential Code HVAC 2013 California Residential Code Revised conventional bracing (braced wall panels) requirements adding additional alternatives (R602.10): •Portal P t lF Frames •Hardboard Panel Siding g •Continuous Sheathing Options Braced Wall Panels shall start a maximum 10ft f from end d off braced b d walls ll ((used d tto b be 8ft) 2013 California Residential Code Single members headers allowed for certain applications 2013 California Residential Code Added standards for Tile backing material and what can be used for direct Tile placement in wet areas (R702.4.2) 2013 California Residential Code Added standards for Window Flashing: 2013 California Residential Code Added information about taper cuts and notches for rafters/joists (R802.7): (R802 7): 2013 California Green Building Standards Code Overview PLEASE KEEP IN MIND THAT THIS IS NOT A COMPLETE LIST OF REQUIREMENTS IN THE 2013 CAL GREEN CODE 2013 California Green Building Code RESIDENTIAL: •Mandatory Mandatory provisions added for ADDITIONS & ALTERATIONS similar to new construction •The mandatory provisions only apply to areas that increase the conditioned area, volume or size •Lower VOC limits for resilient flooring (80% compliance) 2013 California Green Building Code RESIDENTIAL: Rodent proofing required for annular spaces around pipes, electric cables, etc in sole plates 2013 California Green Building Code COMMERCIAL: Mandatory provisions revised for ADDITIONS & ALTERATIONS similar to new construction when: oAddition Addition is over 1 1,000sq.ft.; 000sq ft ; OR oProject valuation is over $200,000 Some alternatives allowed for Additions/Alterations depending on the specific project 2013 California Green Building Code COMMERCIAL: •Clarified Clarified that the construction waste 50% diversion requirement also applies to demolition p j projects •Exception removed for isolated jobsites •Revised requirement for entry door protection: o 4ft overhang, overhang 4ft recess, recess etc for a minimum of 2ft around the sides of the opening 2013 California Electrical Code Substantial Changes PLEASE KEEP IN MIND THAT THIS IS NOT A COMPLETE LIST OF CHANGES IN THE 2013 CALIFORNIA ELECTRICAL CODE 2013 California Electrical Code Added GFCI receptacle requirements in Commercial Buildings (210.8) for indoor wet locations, locker rooms & garages Receptacles allowed to be installed face-up on the counter t if listed li t d ffor that th t purpose (210 (210.52) 52) 2013 California Electrical Code Support wires for conduits/boxes above T-bar ceilings shall be identified by coloring, tagging, etc (300.11) 2013 California Electrical Code Can you install Romex (NMCable) in a commercial building? NO YES In most areas 2013 California Electrical Code All ceiling outlets for lighting shall be rated to be able to support luminaries weighing a minimum of 50lbs. (314.27) 2013 California Electrical Code Receptacles replaced where arc-fault f protection is required shall be replaced with Arc-Fault listed receptacles t l or have h A Arc-Fault F lt listed li t d over-currentt protection installed (406(D)) Same requirement for Tamper-Resistant (TR) & Weather Resistant (WR) Receptacles (406(D)) 2013 California Electrical Code Added Exceptions E ceptions for Tamper Tamper-Resistant Resistant Receptacles (406.12): •Outlets more than 5.5ft above floor •Outlets Outlets that are part of luminaries or appliances •Outlets behind cord/plug connected appliances •Non-grounded receptacles where allowed as replacements p 2013 California Electrical Code Sub-panels in other than one-two family dwellings shall be marked to indicate the location of the main electrical service (408.4) 2013 California Electrical Code Electrically heated floors in kitchens shall be GFCI protected 2013 California Electrical Code •Disconnect required within sight of transformers or a lockable disconnect •Main Main overcurrent device for marinas shall be GFCI protected •All All 15, 15 20 & 30 amp ttemp. receptacles not part of permanent building wiring shall be GFCI protected regardless of location 2013 California Electrical Code •15-20 amp outlets for pool motors shall be GFCI protected •Metallic M t lli parts t within ithi 5ft off a pool shall be electrically bonded •Walls within 3ft of pools and less than 5ft in height shall have equipotential bonding on each h side id off th the wallll 2013 California Electrical Code Cord and plug connected Hydro-Massage Bathtubs shall have the face of the receptacle in direct view of and within 1ft of the access opening 2013 California Electrical Code Solar Photovoltaic Systems (690): Conduits, junction boxes, panels, etc labeled at 10ft intervals, points of connect, conduit bends, etc Separate photovoltaic circuits shall be separately grouped and identified at 6ft intervals 2013 California Electrical Code Solar Photovoltaic Systems: Solar circuits shall be run directly over structural members; circuits not readily observable shall have their locations clearly marked 2013 California Electrical Code Solar Photovoltaic Systems: If multiple inverters are not grouped, a location directory shall be provided at each AC/DC disconnect. disconnect Direct Current PV circuits over 80 volts shall be protected by listed arc-fault circuit interrupters Fused PV disconnects that cannot be de de-energized energized for service shall have a non-fused disconnect within 6ft unless a clear directory is provided 2013 California Electrical Code Solar Photovoltaic Systems: Direct Current (DC) ¾” FMC or smaller or MC conduit 1” or smaller and exposed wiring shall be protected by guard strips 2013 California Electrical Code A foyer over 60sq.ft shall have a minimum of 1 g general use receptacle (210.52) Manufactured dwellings are now required to have Arc-Fault protected circuits similar to “stick-built” constructed homes (550.25(B)) ( ( )) Added article about Small Wind Electric Systems 2013 California Plumbing Code Substantial Changes PLEASE KEEP IN MIND THAT THIS IS NOT A COMPLETE LIST OF CHANGES IN THE 2013 CALIFORNIA PLUMBING CODE 2013 California Plumbing Code Added maximum flow rates for additional fixtures (403 5): (403.5): •Toilets: 1.28gpf •Urinals: U a s .5gpf 5gp •Kitchen Faucets: 1.8gal @ 60psi •Res. Lavatory Faucets: 1.5gal @ 60psi •Showerheads: 2gpm gp @ 80psi p 2013 California Plumbing Code Added section for emergency eye wash stations (location, no drain req., etc) (416.0) Backflow prevention devices required for deck mounted bath/shower valves, handheld shower dispensers, etc (417.0) Revised minimum amount of plumbing fixture table by adding building occupancy types (T-422.1) 2013 California Plumbing Code Added section for gas fired toilets 2013 California Plumbing Code Business and Mercantile occupancies may have 1 unisex restroom if total occupant load is 50 or less. (U d tto b (Used be b based d on 1 1,500sq.ft) 500 ft) (422 (422.2) 2) Exception does not apply to Assembly (A) occupancies 2013 California Plumbing Code Added sections for all types of water supply and drainage joints for specific materials (brazed joints, slip li jjoints, i t etc) t ) th thatt was never mentioned ti d iin prior i codes (605.0 & 705.0) Added exception to allow appliance shut off valves b hi d appliances behind li if they h are movable bl without ih removal of gas lines/valves 2013 California Plumbing Code Added Chapter 16 for Alternate Water Sources & Non-Potable Applications pp (Gray( y Water Systems) Also keep in mind the County Ordinance 2013 California Mechanical Code Substantial Changes PLEASE KEEP IN MIND THAT THIS IS NOT A COMPLETE LIST OF CHANGES IN THE 2013 CALIFORNIA MECHANICAL CODE 2013 California Mechanical Code Added specific requirements for permanent ladder construction (304.2.1.2) Added table back into code for mechanical supports based on material, type of support pp and vertical/horizontal installations 2013 California Mechanical Code Beauty & Barber shops shall be separated from HVAC, water heaters, etc (802.16) 2013 California Mechanical Code Add d specific Added ifi section i for f evaporative i coolers l (935) (935): •Shall be accessible •Ground installation on min. 3” concrete slab •Platform Pl tf i t ll ti a min. installation i 6” above b ground, d etc t Revised gas line minimum test pressure back to 10psi for 15 minutes and 60psi for 30 minutes for welded g gas lines 2013 California Mechanical Code Added Add d specific ifi requirements i f purging for i gas lines prior to placing them into service (1316 12): (1316.12): •Lines shall be purged to the outdoors with a shutoff valve •Valve shall be located a min. 10ft from ignition sources, 10ft from openings into buildings and 25ft from air intakes •Purged g line shall be monitored byy combustible gas indicator •Low pressure systems allowed to be purged indoors under certain conditions 2013 California Energy Code Substantial Changes PLEASE KEEP IN MIND THIS CODE DOES NOT BECOME EFFECTIVE UNTIL JULY 1, 2014 2013 California Energy Code Free Training is available: http://www.energy.ca.gov/title24/training http://www.bect.ws/index.html http://www.pge.com/myhome/edusafety/workshopstraining https://usage smud org/etcstudent/classlist aspx https://usage.smud.org/etcstudent/classlist.aspx 2013 California Energy Code Does a snowman melt faster with or without clothing on? 2013 California Energy Code Low Rise Residential +25% efficiency Multi Family Residential Multi-Family +14% efficiency Non-Residential +30% efficiency Compared to 2008 Energy Standards Net Zero for Residential in 2020 Net Zero for Non-Residential in 2030 2013 California Energy Code 3 Approved Computer Compliance Programs: CBECC Res ver.1d CBECC-Res ver 1d CBECC-Com ver.ld EnergyPro V6.0 Code viewable online at: http://www.energy.ca.gov/title24/2013standards/; this i l d th includes the updated d t d code, d summary off major j changes, etc 2013 California Energy Code Residential (prescriptive): •Reduced U-factor to .32 and SHGC to .25 •Refrigerant e ge a t ccharge/verification a ge/ e cat o required equ ed for o pac package age units, mini-splits, etc •Increased minimum wall insulation to R-15 with a continuous R-4 insulation sheathing •Wood Wood framed rafter spaces to have minimum R-30 insulation •Ductwork R-value of R-8 2013 California Energy Code Residential (mandatory): •Duct Sealing required in all climate zones •Exception cept o a allowing o g 50 50W-100W 00 (depe (depending d go on house ouse size) of non-high efficacy lighting if on dimmer or motion sensor in kitchen (part of 50% requirement) •At least 1 bathroom light shall be high efficacy; all other bathroom lights g to have vacancy y sensors. •Lighting in garages, laundry rooms and utility rooms shall be high efficacy AND controlled by vacancy sensors 2013 California Energy Code Residential (mandatory): •Insulation required for ¾” ¾ & larger hot water lines •250sq.ft of solar ready roof area in subdivisions with 10 or more d dwelling lli units; it iinclude l d 200 amp min. i service, reserved two-pole space, etc •3rd party HERS verification required for Indoor Air Quality Ventilation 2013 California Energy Code Residential: •Simplified Simplified rules and documentation requirements for alteration and addition projects for both prescriptive and performance methods. Commercial: •Increased low slope cool roof minimum solar reflectance ((.55 to .63)) •Added mandatory minimums for wall and roof insulation 2013 California Energy Code Commercial: •Several Several upgrades and changes for commercial lighting (recommend attending free training due to complexity of revisions) For the most part it will be covered as part of your project Energy Calculations •Buildings g less than 3-stories shall have solar readyy roof zones depending on building sq.ft. •Added mandatory requirements for Refrigerated Warehouses, Supermarket Refrigeration, Computer Rooms,, Kitchen Ventilation Controls,, etc 2013 California Energy Code Commercial: In all buildings, both controlled and uncontrolled 120V receptacles shall be provided in Private & Open Office Areas, Conference Rooms, Lobbies, Copy Rooms & Kitchenettes. •Controlled receptacle shall be within 6ft of the uncontrolled receptacle and automatically shutoff when space is unoccupied •Controlled receptacles shall be distinctly marked Senate Bills that Affect You SB 407: Water Efficient Plumbing Fixture Replacement Effective January 1, 2014: •Building Building alterations or improvements to single-family single family dwellings will require the replacement of noncompliant plumbing fixtures •Building alterations or improvements to multi-family or commercial property where the building square footage is i increased db by 10% or th the valuation l ti off iimprovements t are greater than $150k all noncompliant plumbing fixtures shall p be replaced Senate Bills that Affect You SB 407: Water Efficient Plumbing Fixture Replacement Effective January 1, 2017: •All All noncompliant plumbing fixtures for single-family single family dwellings shall be replaced. Effective January 1, 2019: •All noncompliant plumbing fixtures for multi-family and commercial properties shall be replaced. Senate Bills that Affect You SB 407: Water Efficient Plumbing Fixture Replacement Nevada County Building Department will be inspecting and completing plan review for the area of alteration related to plumbing fixture replacement that are affected by the addition and/or remodel Please keep in mind jurisdictions widely range how they will be enforcing SB 407; consult with each jjurisdiction p prior to starting g work for yyour p project j Senate Bills that Affect You SB 1608 &1186: Disabled Accessibility Compliance •Promotes and increases compliance with state and federal laws to ensure equal access to places of business for people with d sab t es disabilities •Provides ways for business owners to ensure that their places of business are accessible •Overviews the importance of property owners and business owners to be proactive in making their place of business accessible •Best way to help protect yourself is to hire a CASp professional to evaluate your site and move forward to make any necessary alterations Separate Workshop to follow regarding Senate Bills Senate Bills that Affect You You can view the entire text of these bills going g to: byy g http://www.leginfo.ca.gov http://www leginfo ca gov or visiting your local law library Most Common Corrections What do you think the most common correction is when we complete building inspections? Most Common Corrections Construction in the field differentiating from the approved plans: •Minor corrections can be “red-lined” in the field •Major corrections need plans submitted, reviewed and approved prior to inspection Deferred Submittal allowed for Certain Plans Most Common Corrections Stairway head height: •Minimum 6’8” 6 8 measured from the stair nosing Most Common Corrections Smoke and Carbon Monoxide Detectors being installed at time of final inspection. Affidavit is available for certain permits Electrical services completed prior to inspection: •Grounding/bonding •Knockouts Filled •GFCI receptacle •Mounting Complete •Conductors Terminated on Lugs •Compatible circuit breakers for panel Most Common Corrections Sealing penetrations in electrical boxes or top of boxes for exterior applications Install a fused disconnect or HACR circuit breaker for HVAC and AC Units Most Common Corrections Exterior receptacles exposed to the weather to have “bubble” covers and be Weather Resistant (WR) rated Tamper Resistant Receptacles installed at final inspection Most Common Corrections Completing all fasteners in framing hardware AND using the correct fasteners Free Simpson Training on February 25th Most Common Corrections Cold C ld water t electrical l ti lb bonding di conductor d t correctly sized; shall be same size as grounding di electrode l t d conductor d t Most Common Corrections Air testing plastic DWV plumbing 18awg blue tracer wire for u/g water services Interior of conduits above & in ground in wet locations are considered wet locations Most Common Corrections Exterior E t i Intersystem B di Busbar Bonding B b installed for electrical l t i l services i Minimum 3,000psi 3 000psi concrete & grade 60 rebar for Seismic Design Categories D0 and greater (residential) Most Common Corrections Wood siding to have a minimum 2” 2 clearance to concrete Incorrect nail plates/metal ties for notches & bored holes Most Common Corrections Duct openings not covered during construction 3” sediment trap for gas equipment g q p (HVAC, W/H, etc) Correct Class A roofing underlayment If yyou have further q questions at a later date please do not hesitate to contact t t the th Nevada N d C County t Building B ildi Department