Significant Changes To 2018 I-Codes For Multifamily .

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Significant 2018Code Changesfor MultifamilyBuildingsJune 29, 2017

Copyright NoticeCopyright 2017 National Association of Home Builders. Allrights reserved.No part of this webinar may be reproduced, transmitted, orused in any form or by any means, electronic or mechanical,including photocopying, recording, and scanning, or by anyinformation storage and retrieval system without the priorwritten permission of the National Association of HomeBuilders. Permission may be requested from NAHB, 1201 15thStreet, N.W., Washington, D.C. 20005.

DisclaimerThis webinar is intended to provide complete andaccurate information on the subject matter coveredas of the time of publication; however, NAHB makesno representations or warranties regarding theaccuracy and completeness of this webinar’scontents. It is offered with the understanding thatNAHB is not providing legal, accounting or otherprofessional services. If you need legal, accountingor other expert assistance, you are encouraged toobtain the services of a qualified professionalexperienced in the subject matter involved. It is alsorecommended that you check on federal, state andlocal statutes, ordinances, and regulations.Furthermore, information in this webinar is intendedto be accurate as of the time of publication andconsistent with standards of good practice in thehome building industry. As research and practiceadvance, however, standards may change. For thisreason, it is recommended that participants evaluatethe applicability of any recommendation in light ofparticular situations and changing standards.Trademarks or service marks of companies andproducts are indicated within the webinar. Theseand all other trademarks or registered trademarksused in this work are the property of their respectiveowners.Please note that any sample applications, websites,vendors, or product provisions, as well as anyreferences to a commercial product, service orprocess by trade name, trademark or service mark,or manufacturer, etc., included in these materials arefor informational or illustrative purposes only, andtheir inclusion herein does not constituteendorsement, recommendation or favored status byNAHB.

Learning ObjectivesParticipants in this webinar will be able to: Discuss significant changes to the 2018 edition of theInternational Building Code and related codes affectingmultifamily construction. Recognize the potential impacts of the 2016 edition of ASCE 7 onroof coverings, roof framing and on design in areas of moderateor high risk of earthquakes. Review significant changes relating to fire resistance in buildings,design and construction of balconies, and accessibility. Review the basics of the code development process and howcodes are adopted at the state or local level.

Speaker – Gary Ehrlich Director, Codes &Standards for NAHB Licensed ProfessionalEngineer in MD

Speaker – Dan Buuck Senior Program Manager,Codes & Standards forNAHB ICC Certified BuildingOfficial

Polling Question 1Which best describes your profession? Builder or remodeler Product manufacturer or supplier Engineer or architect Code official HBA staff Other

Polling Question 2Which edition of the IBC is your state currently using? 2015 IBC 2012 IBC 2009 IBC Earlier IBC edition or other code

ICC CodeDevelopmentProcess The International Code Council (ICC)mission is to provide the highest qualitycodes, standards, products and services forall concerned with the safety andperformance of the built environment. Developed by ICC, the InternationalCodes are the most widely adoptedmodel code throughout the United States. ICC publishes a new edition of the codesevery 3 years.

ICC Code Development CycleCode ChangesPosted OnlineCode ChangesSubmittedNew CodePublishedCommittee ActionHearing (CAH)cdpACCESS OnlineGov. Consensus VotecdpACCESS OnlineAssembly VotePublic CommentHearing (PCH)CAH ReportPosted OnlinePublic CommentsSubmittedPublic CommentsPosted Online

cdpACCESS All code changes must be submittedusing the cdpACCESS portal. All Governmental Members mustregister before the Committee ActionHearings, to vote on the GovernmentalConsensus Ballot. The Governmental Consensus Ballot willbe based on the outcome of the PublicComment Hearing.

IBC SignificantChanges

Storm SheltersIBC 423, 1604.5 Storm shelters only classified asRisk Category IV if intended to beused as a community shelter forpost-storm recovery. Private shelter for tenants and of amultifamily or office building andguests can be Risk Category II. Corridor(s) leading to the stormshelter need not be structurallyupgraded to Risk Category IVrequirements.Photo by George Armstrong/FEMAPhoto by Win Henderson/FEMA

Private Garages and CarportsIBC 406.3 Allows a private garage to beconstructed using the publicparking garage requirements. Permits a garage for tenantsin a multifamily building toexceed the 1000 square footarea limit for private garages. Otherwise, there must be a1-hour fire barrier every1000 square feet of garagearea.Photo by Gary Ehrlich

Enclosed Parking GaragesIBC 406.6.2 Mechanical ventilation notrequired for enclosedparking garages accessoryto Group R-3 buildings. Consistent with IRC wheremechanical ventilation isnot required for anattached garage. Cost savings for 4-storytownhouses.Photo by Rob Muir

Fire Resistance RatingIBC Table 602Allows exterior walls of GroupR-3 buildings to be unratedwhere the fire separationdistance is greater than 5 feet.Applies to Type II-B and TypeV-B construction.

Projections2015 IBCIBC Table 705.2Reverts requirements for theminimum distance of projection to2012 IBC and earlier editions. 2015:With a Fire Separation Distance(FSD) of 30 feet or more, the min.distance from the line is 20 feet. 2018:With a FSD of 5 feet or more, themin. distance from the line is 40inches.2018 IBC

Fire WallsIBC 503.1, 706.1 Not required on property linesestablished solely forownership purposes as long asheight and area limits are met. “Separate building” provisionapplies only for determiningheight/area limits andconstruction type. Do NOT need independentshear walls on each side of thefire wall.Photo by Thomas Arledge

Pedestal BuildingAttic ProtectionIBC/IFC 903. not required to besprinklered (NFPA 13R system) inbuildings of Type III, IV or Vconstruction where the roofassembly is over 55 feet above thelowest level of required firedepartment vehicle access shall beprotected by one of the following: Fire sprinklers Noncombustible construction Fire-retardant treated wood Fill with noncombustibleinsulation

EgressIBC 1006.4Allows the path of egresstravel to pass through morethan one adjacent story: Within a dwelling unit. Up to 4 stories in Group R-1,R-2 or R-3 occupancies. In Group R-3 congregateresidence or Group R-4.Photo by Darius Kuzmikas

Guard HeightIBC 1015.3Removes the requirement tomeasure guard height from fixedseating surfaces adjacent to the openside of elevated walking surfaces Group R-3 not more than 3 stories(36" guards). Individual dwelling units in GroupR-2 not more than 3 stories (36"guards). Correlates guard heightmeasurement with IRC & 42"guards in IBC. International Code Council

Emergency Escape andRescue OpeningsIBC 1030.1Clarifies that EEROs are onlyrequired in Group R-2 locatedin: Stories with one exit, or Stories with access to oneexitas permitted in Tables1006.3.2(1) and 1006.3.2(2).

Snow Loads1608 State-specific ground snowloads for OR, WA, ID, MT, UT,CO and NH tabulated. Ground snow loads in EasternColorado (including Denver)increased based on new study. Rain load for secondary drainsincreased from 100-year/60minute rainfall rate to 100year/15-minute DominickPhotoPhotoby DarrenEdwardsBiocchi/FEMA

Wind Loads1609 New maps with reduced ultimatedesign wind speeds for WestCoast, upper Midwest, andNortheast. New rules in Commentary foraddressing open areas in suburbanterrain. Component and cladding roofpressures for low-rise buildingsincreased. Edge and corner zoneson low-slope roofs now vary withbuilding height.Photo by FEMA News

Seismic Loads1613 Seismic ground motion mapsupdated based on new USGSdata. Higher SDC’s for southeasternNew Hampshire, easternTennessee, and Charleston, SC. New design requirements forconcrete and masonry fences. Expanded design requirementsparapets, stairs, and ceilings.Photo by Dan Golden/FEMAPhoto by FEMA News

Tsunami Loads1615 New chapter for design ofbuildings along CA, OR, WA, AKand HI coastlines to resisttsunami loads. Only required for Risk CategoryIII and IV buildings, i.e. thosewith high occupant loads, orcritical & essential facilities. States and communities areencouraged to extend to othertypes of buildings.Photo by Dan Golden/FEMAPhoto by Gabriela Aranda

Wood BalconiesIBC 2304.12.2.5 and2304.12.2.6 New provisions to address issuescontributing to balcony collapse inBerkeley. Ventilation openings required ifframing under balcony enclosedby soffit. Drainage board or mat requiredbetween concrete topping andwood framing below. All balconies must be designed for1.5x live load of area(s) served.Images Building Science Corporation

Wall HeadersIBC 2308.5.5.1 Single member headers forbearing walls added. 2x header with flat 2x aboveand below. Allows for insulation in placeof the second 2x.Figure by APA – The Engineered Wood Association

Emergency Elevator CommunicationsIBC 3001.2Adds a requirement to installcommunication systems for hearingand speech-impaired users. Visual and text-based, videobased 24/7 live interactivesystem. Voice-only options for thehearing. Able to communicate withemergency personnel via videoconferencing, chat/text softwareor other approved technology.

Fire WatchIFC 3304.5/IBC 3314.1Allows the fire code official to requirea fire watch For construction that exceeds 40feet in height. During non-working hours.Photos:

Smoke Detectors & Smoke AlarmsIBC 3308.6.1Adds a requirement to protectsmoke detectors and smokealarms against dust duringconstruction. Cover or temporarily remove.After dust-producing work iscompleted: Replace units that wereremoved. Uncover, inspect and cleanunits that were covered.

IEBC SignificantChanges

AccessibilityIEBC 301.1.5 Requires existing buildings tocomply with the 2009 edition ofICC A117.1 Standard forAccessible and Usable Buildingsand Facilities.Photo by Tom Redner

IECC SignificantChanges

Energy Recovery Ventilation Requirements for ERV’shave been reduced in thecommercial portion of the2018 IECC. Many individual dwellingunit multi-family ventilationsystems will no longer needenergy recovery. In the 2015 code, nearly allrequired energy recovery. May need a timer on theventilation system to avoidthe ERV requirement.

Building Tightness Testing Multi-family units arepermitted to be sample testedwhen using the performancepath (section R405). Sampling protocol is notdefined, this will need to beworked out with the AHJ. Significant cost savings forsome multi-family buildings(e.g. garden style apartments).

Commercial Lighting ControlsThis change rewrites sections ofC405.2.5 and adds new sectionsthat add requirements forcontrols to integrate exteriorlighting controls with otherbuilding lighting controls. Thisfunctionally restricts the use ofmechanical timers. Anexception was introduced thatexempted dwelling units fromhaving to comply.

IMC and IPCSignificantChanges

Dryer DuctIMC 504.8.2Where dryer exhaust ducts areenclosed in wall or ceilingcavities, such cavities shallallow the installation of theduct without deformation.

PlenumsIMC 602Adds framing cavity plenums to thelist of plenum locations allowed inthe code.Courtesy:Building America Solution Center

Duct SealingIMC 603.9 The exception to seallongitudinal and transversejoints, seams and connectionsin ducts now includes onlythose located outside ofconditioned spaces. Previously, snap-lock andbutton-lock duct types wererequired to be sealed even insystems with pressures under2 inches water column.

Code Adoption

How Building Codes are Adopted Legislative adoption Direct regulatory adoption (nobuilding code council) Periodic review and adoption bya state or county building codecouncil‒ Typically every 3 years‒ Some states every 6 years

How Building Codes are Amended Most states and jurisdictions permitamendments to adopted buildingcodes. Some allow amendments to eitheradd, remove or modify provisions ofthe model code. Some only allow amendments thatstrengthen the code. Some states limit the ability ofcounties or cities to makeamendments.

NAHB Code Adoption Resources NAHB offers Code AdoptionToolkits with recommendedamendments. NAHB CC&S staff can assist HBA’sin drafting amendments. NAHB CC&S staff can provideHBA’s with talking points onamendments submitted by others.

Questions and AnswersSpeaker Contact Information Gary EhrlichDirector, Codes & StandardsNAHBE-mail: Dan BuuckSenior Program ManagerCodes & StandardsNAHBE-mail:

Thank YouPlease note: Registrants will receive a link to the webinarrecording and slides within approximately 7 – 10business days. This webinar counts as one hour of continuingeducation credit for NAHB professional designations. This webinar also counts as 0.1 CEU towards ICCcertifications. Please email if youwould like to receive ICC credit.We Build Communities

Jun 29, 2017 · IBC Table 705.2. Reverts requirements for the minimum distance of projection to 2012 IBC and earlier editions. 2015: With a Fire Separation Distance (FSD) of 30 feet or more, the min. distance from the line is 20 feet. 2018: With a FSD of 5 feet or more, the min. distance from the line is 40 inches. 2015 IBC. 2018 IBC

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