Major Changes To The 2019 California Building Code

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Major Changes tothe 2019 CaliforniaBuilding Code1/29/20201/29/2020AIA East Bay Chapter 2019 CBCCode UpdateSteven R Winkel, FAIA, PE, CASpThe Preview Group, Inc.This program is registered with the AIA/CES for continuingprofessional education. As such, it does not include content that maybe deemed or construed to constitute approval, sponsorship orendorsement by the AIA of any method, product, service, enterpriseor organization. The statements expressed by speakers, panelists, andother participants reflect their own views and do not necessarilyreflect the views or positions of The American Institute of Architectsor of AIA components, or those of their respective officers, directors,members, employees, or other organizations, groups or individualsassociated with them. Questions related to specific products andservices may be addressed at the conclusion of this presentation.1/29/202012This presentation is protected by U.Sand International copyright laws.Reproduction, distribution, displayand use of the presentation withoutwritten permission of the speaker isprohibited.1/29/2020Copyrighted Materials The Preview Group, Inc. 201931

AIA East Bay Chapter 2019 CBCCode Update1/29/20201. Identify significant changes made in thebasic 2018 IBC and IRC that are included inthe 2019 CBC.2. Identify California‐specific changes to the2018 IBC and IRC in the 2019 CBC and CRC.3. Identify the changes made to the 2016codes by interim changes that will becarried forward in the 2019 CBC and CRC.4. Learn to recognize the impact of the notedchanges on practice.1/29/2020Learning Objectives4The new 2019 editions of all the codesin California Code of Regulations Title24 are now available online for viewingon the Building Standards Commissionwebsite athttps://www.dgs.ca.gov/bscand for purchase from ICC athttps://www.iccsafe.org/1/29/2020Publication of the 2019 CBC51/29/20202018 IBC is the Basis for the2019 CBC62

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Finding Changes Double Vertical Lines CA ChangeSolid Vertical Bar IBC Change (NA for access Chapters 11A and 11B,which are both CA Chapters) Caret Denotes CA Deletion*Single asterisk means text has been relocated elsewhere in thecode**Double asterisk means text following mark has been moved therefrom elsewhere in the code1/29/2020CA language (new & old) is in Italic Type [as are words with IBC definitions confusing]Arrow Denotes IBC Deletion7The best way to keep track of codechanges, especially rearranged chapterslike Chapter 10 is to get the pdf versionof the code so you can do key wordsearches1/29/2020Get the pdf8Whether pdf or hard copy be sure tokeep up to dateWith errata (buff pages)1/29/2020Code Update ManagementWith interim cycle and emergencyamendments (blue pages)93

AIA East Bay Chapter 2019 CBCCode Update1/29/20201/29/20202019 California Code Timeline102019 California Codes are based upon: 2017 National Electrical Code – NFPA 2018 Uniform Mechanical Code‐ IAPMO 2018 Uniform Plumbing Code – IAPMO 2018 International Fire Code – ICC 2019 Energy Code – California Energy Commission 2019 California Residential Code Chapters 1‐10 of the2018 International Residential Code CALGreen – 2019 California Green Building Standards Code2018 International Existing Building Code – PartialAdoption to replace deleted IBC Chapter 341/29/2020Other California Codes11 [A] Administrative Code Development Committee;[BE] IBC ‐ Means of Egress Code Development Committee;[BF] IBC ‐ Fire Safety Code Development Committee;[BG] IBC‐ General Code Development Committee;[BS] IBC ‐ Structural Code Development Committee;[El International Energy Conservation Code DevelopmentCommittee (Commercial Energy Committee or Residential EnergyCommittee, as applicable);[EB] International Existing Building Code Development Committee;[Fl International Fire Code Development Committee;[FG] International Fuel Gas Code Development Committee;[Ml International Mechanical Code Development Committee;[Pl International Plumbing Code Development Committee.1/29/2020ICC Code Committees124

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 Key to Understanding the California StateFire Marshal’s Amendments to the IBCare:“In high‐rise buildings, Group A, E, H, I, L andR occupancies and other applications listedin Section 111 regulated by the Office ofthe State Fire Marshal, .”1/29/2020California State FireMarshal Amendments We will label these “SFM Occupancies”for further discussion. Most SFM changes from 2016 CBC carriedforward into 2019 CBC without revision13Per Section 107.2.5 for weatherexposed exterior balconies theconstruction documents must includeall elements of the “imperviousmoisture barrier system” includingmanufacturer’s installation instructions.1/29/2020107.2.5 Exterior BalconiesAddresses issues from 6/15 Berkeleybalcony collapse that killed 6 people.14Per Section 110.3.6 for weatherexposed exterior balconies all elementsof the “impervious moisture barriersystem” are not to be concealed untilinspected and approved.1/29/2020110.3.6 Exterior BalconyInspections155

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Commercial place of public amusement. An auditorium,convention center, cultural complex, exhibition hall,permanent amusement park, sports arena, theater ormovie house for which the maximum occupancy is 2,500 ormore for the facility. Cultural complexes include but are notlimited to art galleries, symphony, concert halls, andmuseums. A commercial place of public amusement doesnot include any public or private higher education facility ordistrict agricultural associations.1/29/2020New Definition –Used in scoping for adult changing rooms inChapter 11B, discussed later16Definition Change –2019 CBC1/29/20202016 CBC [BG] AMBULATORY CARE [BG] AMBULATORY CAREFACILITY. Buildings or portions FACILITY. Buildings orthereof used to provideportions thereof used tomedical, surgical, psychiatric,provide medical, surgical,nursing or similar care on apsychiatric, nursing orless than 24‐hour basis tosimilar care on a less thanindividuals who are rendered24‐hour basis to personsincapable of self‐preservationwho are rendered incapableby the services provided.of self‐preservation by theservices provided or staffhas accepted responsibilityfor care recipients alreadyincapable.17This is used in both 2016 and 2019 definitions of“Ambulatory Care Facilities”, but worth repeating:1/29/2020Same Definition[BG] INCAPABLE OF SELF‐PRESERVATION.Persons who, because of age, physicallimitations, mental limitations, chemicaldependency or medical treatment, cannotrespond as an individual to an emergencysituation.186

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Definition Change – [BE] COMMON PATH OFEGRESS TRAVEL. Thatportion of exit accesstravel distance measuredfrom the most remotepoint of each room, areaor space to that pointwhere the occupants haveseparate and distinctaccess to two exits or exitaccess doorways.1/29/20202019 CBC2016 CBC COMMON PATH OFEGRESS TRAVEL. Thatportion of the exit accesstravel distance measuredfrom the most remotepoint within a story tothat point where theoccupants have separateaccess to two exits or exitaccess doorways.19 [BS] CONVENTIONAL LIGHT‐FRAME CONSTRUCTION. Construction whose primary structural elements are formedby a system of repetitive wood‐framing members. SeeSection 2308 for conventional light frame constructionprovisions.1/29/2020New Definition – Moved into IBC from Residential Code. See Section2308 for details.20Definition Change –2019 CBC [BE] COMMON PATH OFEGRESS TRAVEL. Thatportion of exit accesstravel distance measuredfrom the most remotepoint of each room, areaor space to that pointwhere the occupants haveseparate and distinctaccess to two exits or exitaccess doorways.1/29/20202016 CBC COMMON PATH OFEGRESS TRAVEL. Thatportion of the exit accesstravel distance measuredfrom the most remotepoint within a story tothat point where theoccupants have separateaccess to two exits or exitaccess doorways.217

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Definition Change –2019 CBC [A] HISTORIC BUILDINGS.Any building or structure that is one ormore of the following: 1. Listed or certified as eligible for listing bythe State Historic Preservation Officer orthe Keeper of the National Register ofHistoric Places, in the National Register ofHistoric Places. 2. Designated as historic under anapplicable state or local law. 3. Certified as a contributing resourcewithin a National Register, state designatedor locally designated historic district. [DSA‐AC] See “Qualified historical building orproperty,” C.C.R., Title 24, Part 8.1/29/20202016 CBC [A] HISTORIC BUILDINGS.Buildings that are listed inor eligible for listing in theNational Register ofHistoric Places, ordesignated as historicunder an appropriatestate or local law (seeSections 3409 and3411.9). [DSA‐AC] See“Qualified historicalbuilding or property,”C.C.R., Title 24, Part 8.22Definition Change –2019 CBC [BS] VEGETATIVE ROOF. Anassembly of interactingcomponents designed towaterproof a building’s topsurface that includes, bydesign, vegetation andrelated landscape elements1/29/20202016 CBCVEGETATIVE ROOF. Anassembly of interactingcomponents designed towaterproof and normallyinsulate a building’s topsurface that includes, bydesign, vegetation andrelated landscape elements.23 302.1 Occupancy classification. Occupancy classification is theformal designation of the primary purpose of the building, structureor portion thereof. Structures shall be classified into one or more ofthe occupancy groups listed in this section based on the nature ofthe hazards and risks to building occupants generally associated with the intended purpose of the building orstructure . Occupied roofs shall be classified in the group that the occupancy most nearly resembles, according to the fire safety and relative hazard, and shall comply with Section 503.1.4.1/29/2020Chapter 3 – Occupancyand Use 503.1.4 are new provisions for occupied roofs248

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Greenhouses for theconservation and exhibitionof plants that provide publicaccess are “A‐3” OccupanciesGreenhouses for display andsale of plants that provide publicaccess are “M” occupancies.Greenhouse not otherwiseclassified are “U” occupancies1/29/2020Greenhouse Occupancies25Per SFM legislativemandate labs that aretypically “B” in the IBC are“L” in the CBC. There aremany detailed changes inboth the IBC and CBC. Tooextensive to cover here ina general discussion.Examine “H” control areasas well1/29/2020IBC “B “ Labs vs. CBC “L”Lab occupancies26 202 LABORATORY SUITE. [SFM] A laboratorysuite is a Group L Occupancy space within abuilding or structure, which may includemultiple laboratories, offices, storage,equipment rooms or similar support functions,where the aggregate quantities of hazardousmaterials stored and used do not exceed thequantities set forth in Table 453.7.3.1 (seeSection 453).1/29/2020CBC “Laboratory Suite”279

AIA East Bay Chapter 2019 CBCCode Update1/29/2020There are a number of subtle changes in to boththe IBC and the CBC to occupancy classificationcriteria for group living and group care facilitiessuch as boarding houses, fraternities & sororities,rehabilitation centers and residential care facilities.If you practice in these areas examine the variousoccupancy classification criteria in Section 310between R‐2, R‐3 and R‐3 occupancies.1/29/2020Chapter 3 – CongregateLiving Facilities: R-2, R-3, R-428 310.3 Residential Group R‐2. Residential Group R‐2 occupanciescontaining sleeping units or more than two dwellingunits where the occupants are primarily permanent in nature,including:Apartment housesCongregate living facilities (nontransient) with morethan 16 occupantsBoarding houses (nontransient)ConventsDormitoriesFraternities and sororitiesMonasteriesHotels (nontransient)Live/work unitsMotels (nontransient)Vacation timeshare properties1/29/2020Chapter 3 – CongregateLiving Facilities: R-229 310.4 Residential Group R‐3. Residential Group R‐3 occupancies where theoccupants are primarily permanent in nature and not classified as Group R‐1, R‐2, R‐4 or I, including: Buildings that do not contain more than two dwelling units Care facilities that provide accommodations for five or fewer personsreceiving care Congregate living facilities (nontransient) with 16 or fewer occupants Boarding houses (nontransient) Convents Dormitories Fraternities and sororities Monasteries Congregate living facilities (transient) with 10 or fewer occupants Boarding houses (transient) Lodging houses (transient) with five or fewer guest rooms and 10 orfewer occupants1/29/2020Chapter 3 – CongregateLiving Facilities: R-33010

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 310.5 Residential Group R‐4. Residential Group R‐4 occupancy shallinclude buildings, structures or portions thereof for more than five butnot more than 16 persons, excluding staff, who reside on a 24‐hourbasis in a supervised residential environment and receive custodial care.Buildings of Group R‐4 shall be classified as one of the occupancyconditions specified in Section 310.5.1 or 310.5.2. This group shallinclude, but not be limited to, the following: Alcohol and drug centers Assisted living facilities Congregate care facilities Group homes Halfway houses Residential board and care facilities Social rehabilitation facilities1/29/2020Chapter 3 – CongregateLiving Facilities: R-431 Per revisions to § 311.1.1,thecriteria for what may beconsidered to be “accessorystorage spaces” and be a part ofthat occupancy and notconsidered some kind of “S”occupancy have been simplifiedand made less restrictive. The100 sf limit on such spaces hasbeen removed. Also the limit onaggregating such areas has beenremoved1/29/2020311.1.1 Accessory Storage321/29/2020404.5 & 6 – 2-story atriums In other than I‐2 occupancies smoke control is notrequired in 2‐story “atriums”. A change to Section404.6 Item 4 clarifies that a fire barrier is notrequired between the atrium and the adjoiningspaces where the atrium is not required to beprovided with a smoke control system.3311

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 The sections regarding motorvehicle related occupancies havebeen reorganized to group allprovisions common to all theseuses into one section to avoidrepetition. There are not anymajor substantive changes. Itemsinclude: Accessible parking Clear heights Floor surfaces and slopes Elevation of ignition sources Relation to sleeping rooms1/29/2020406 – Motor Vehicle relatedOccupancies34 In Group I‐2 Condition 1 occupancies, rooms withdomestic cooking appliances may be open to the corridor where all the following criteria are met: 1. 30 occupants per smoke compartment. 2. 30 users served by cooking facility 3. Only one cooking facility per smoke compartment. 4. Domestic cooking appliances limited to ovens,cooktops, ranges, warmers and microwaves. 5. The space containing the domestic cooking facilityshall be arranged so as not to obstruct access to the required exit.1/29/2020407.2.6 Nursing HomeCooking Facilities –Slide 135 In Group I‐2 Condition 1 where all of the following criteria are met:6. Domestic cooking hoodsto be per the CaliforniaMechanical Code to beprovided over cooktops and ranges.7. Cooktops and ranges to be protectedwith fire extinguishing per Section 904.13.8. Shut‐off for the fuel and electrical power supply tothe cooking equipment provided in a location accessibleonly to staff.9. A timer deactivates the cooking appliances within a period of notmore than 120 minutes. 10. Provide a portable fire extinguisher within a 30‐ foot distance oftravel from each domestic cooking appliance.1/29/2020407.2.6 Nursing HomeCooking Facilities –Slide 23612

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Cooking areas may beprovided in R‐2dormitories if: Appliances limitedto ovens, cooktops,ranges, warmers,coffee makers andmicrowaves. In approvedlocations Range hood perCMC Hood protected per904.13 with firesuppression1/29/2020420.11 Dorm Cooking Facilities37 Change to fire wallcriteria to clarify theiruse for height and areaadjustments 503.1 General. .For thepurposes of determiningarea limitations, heightlimitations and type ofconstruction, each portionof a building separated byone or more fire wallscomplying with Section706 shall be considered tobe a separate building.1/29/2020503.1 Fire Wall Criteria381/29/2020503.1.4 – Occupied RoofsA roof level may be an occupied roof provided the occupancyof the roof is an occupancy that is permitted by Table 504.4for the story immediately below the roof. The area of theoccupied roof is not to be included in the building area.Exceptions:1.1. The occupied roof occupancy is not limited to theoccupancies allowed on the story immediately below theroof when the building is sprinklered2.2. Assembly occupancies are permitted on roofs of openparking structures of Type I or Type II Construction503.1.4.1 Enclosures over occupied roof areas. Elements orstructures enclosing the occupied roof areas may not extendmore than 48 inches above the surface of the occupied roof.Exception: Penthouses constructed in accordance withSection 1510.2 and towers, domes, spires and cupolasconstructed in accordance with Section 1510.5.This provision implies that overheadstructures such as trellises may be seen tocreate additional stories.3913

AIA East Bay Chapter 2019 CBCCode Update1/29/20201/29/2020Table 506.2 - OOPS! THERE IS AN ERROR IN THE AREA TABLES FOR SECTION606.2 SHOWING “W/O AREA INCREASE” INSTEAD OF “W/OHEIGHT INCREASE” FOR SFM OCCUPANCIES – NO CHANGEWAS INTENDED – NUMBERS REMAIN THE SAME – ERRATAWILL BE ISSUED, BUT LIKELY NOT UNTIL 2020 2016 TABLE 506.2 R‐2 EXAMPLE – NO CHANGE FOR 2019 2019 TABLE 506.2 R‐2 EXAMPLE – NOTE SAME #’S40 Per Footnote “i”unsprinkleredType VB “U”Occupancygreenhouses maybe 9,000 sf inallowable area,which is equal toprior VA allowablearea from 2016CBC1/29/2020Table 506.2 TYPE VB “U”Occupancy Greenhouses41 When there is a verticaloffset in the 3 hourhorizontal assembly thecode now clearly states:1/29/2020510. Vertical offsets inpodium buildings Where vertical offsets areprovided as part of a horizontalassembly, the vertical offset andthe structure supporting the vertical offset shall have a fire‐resistance rating of not less than 3hours. Unclear how this applies toopening protection at fullstory offsets4214

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 Code now clearlystates that FRTsheathing may beused in two‐hour orless assemblies inType IIIA constructionwhere FRT framing isused and assembliesare not less than 6”thick1/29/2020602.4.1 FRT Sheathing inType III construction43 Code now states thatsingle story columnslocated between thetop and bottom platesmay rely on wallmembrane fireprotection. Does notapply to continuouscolumns. Applies toboth wood and steellight framing1/29/2020704.4.1 1-story columnmembrane fire protection44 704.6.1 Secondary attachments to structuralmembers. Where primary and secondarystructural steel members require fireprotection, secondary attachments to thosestructural members shall be protected withthe same fire resistive material and thicknessas required for the structural member. Theprotection shall extend away from thestructural member a distance of not less than12 inches, or shall be applied to the entirelength when the attachment is less than 12inches long. When an attachment is hollowand the ends are open, the fire resistivematerial and thickness shall be applied toboth exterior and interior of the hollow steelattachment.1/29/2020704.6.1 Secondaryattachments to structuralmembers4515

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 New rules forprojections atproperty linesfixes brokenTable 705.2from 2015 IBC1/29/2020Table 705.2 ProjectionDistances46Table 705.2 ProjectionDistances1/29/20202019201647 Moved from 1405 in2016 CBC1‐hour or HT@ 5’. May be unratedconstruction if sprinklerprotection is providedat the projection – typ.side wall heads ‐ SFMadds vent provisions forfire rated decks1/29/2020705.2.3 Combustibleprojections and balconies4816

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 705.2.3.2 Vents. [SFM] Vents required by Section2304.12.2.6 in fire rated exterior balconies orelevated walkway surfaces shall be designed wherethe voids created at the intersection of the exteriorcurtain wall and the balcony floor are sealed with anapproved material or system to retard the interiorspread of flame, hot gases and products ofcombustion. Rated assemblies shall comply withSection 715. Ventilation openings shall comply withWUI requirements where applicable. Balconies shallcomply with the fire sprinkler protection as requiredby 903.3.1.1 or 903.3.1.2 and the reference standard.1/29/2020705.2.3.2 Vents at balconies492. Fire walls are not required on lot lines dividing abuilding for ownership purposes where the aggregateheight and area of the portions of the building locatedon both sides of the lot line do not exceed themaximum height and area requirements of this code.For the code official’s review and approval, he or sheshall be provided with copies of dedicated accesseasements and contractual agreements that permitthe owners of portions of the building located oneither side of the lot line access to the other side forpurposes of maintaining fire and life safety systemsnecessary for the operation of the building.1/29/2020706.1.1 Fire Walls as PartyWalls - Exception 2:50706.2 Structural stability. Fire walls shall be designed andconstructed to allow collapse of the structure on either sidewithout collapse of the wall under fire conditions Exception: In Seismic Design Categories D through F, wheredouble fire walls are used inaccordance with NFPA 221,floor and roof sheathing notexceeding 3/4 inch (19.05 mm)thickness shall be permitted tobe continuous through the wallassemblies of light frameconstruction. Typical SEOCseismic detail recommendation1/29/2020706.2 Exception – Plywood @Fire Walls:5117

AIA East Bay Chapter 2019 CBCCode Update1/29/2020There are a number ofsubtle changes to theconnection and continuitycriteria for “Fire Partitions”.These occur in many placessuch as R occupancyseparation walls, tenantseparations, corridors andelevator lobbies amongother uses.1/29/2020708.4 Fire Partition Continuity52Fireblock and draftstop requirementsin combustible construction have beenconsolidated and modified. Incombustible construction where firepartitions do not extend to theunderside of the floor or roofsheathing, deck or slab above, thespace above and along the line ofthe fire partition are to be providedwith one of the following: Fireblockingor draftstopping up to the undersideof the floor or roof sheathing, deck orslab above, except where sprinklersare provided1/29/2020708.4.2 Fireblocks & Draftstopsin combustible construction53713.8.1 Prohibited penetrations.Penetrations other than thosenecessary for the purpose of theshaft shall not be permitted inshaft enclosures.Exception: Membranepenetrations shall be permittedon the outside of shaftenclosures. Such penetrationsshall be protected in accordancewith Section 714.4.2.1/29/2020713.8.1 MembranePenetrations at outside ofshafts5418

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 707A.3 Exterior walls. The exterior wallcovering or wall assembly shall comply with one of the following requirements: 1. Noncombustible material 2. Ignition‐resistant material3. Heavy timber exterior wall assembly Sawnlumber or glue laminated wood with thesmallest minimum nominal dimension of 4inches (102 mm). Sawn or glue‐laminatedplanks splined, tongue‐and‐grove, or setclose together and well spiked.1/29/2020707A.3 Exterior Walls55 707A.8 Underfloor protection. The underfloor area of elevated or overhangingbuildings shall be enclosed to grade in accordance with the requirements of thischapter or the underside of the exposed underfloor shall consist of one of the following: 1. Noncombustible material 2. Ignition‐resistant material 3. One layer of 5/8‐inch Type X gypsum sheathing applied behind an exteriorcovering on the underside of the floor projection 4. The exterior portion of a 1‐hour fire resistive exterior wall assembly applied to theunderside of the floor including assemblies using the gypsum panel and sheathingproducts listed in the Gypsum Association Fire Resistance Design Manual. 5. The underside of a floor assembly that meets the performance criteria inaccordance with the test procedures set forth in either of the following: 5.1. SFM Standard 12‐7A‐3; or 5.2. ASTM E29571/29/2020707A.8 Underfloorprotection Exception: Heavy timber Structural columns and beams donot require protection when constructed with sawn lumberor glue laminated wood with the smallest minimumnominal dimension of 4 inches (102 mm). Sawn or glue‐laminated planks splined, tongue‐and‐grove, or set closetogether and well spiked.56 707A.9 Underside of appendages. When required by the enforcing agency theunderside of overhanging appendages shall be enclosed to grade in accordance with therequirements of this chapter or the underside of the exposed underfloor shall consist ofone of the following: 1. Noncombustible material 2. Ignition‐resistant material 3. One layer of 5/8‐inch Type X gypsum sheathing applied behind an exterior covering on the underside of the floor projection 4. The exterior portion of a 1‐hour fire resistive exterior wall assembly applied to the underside of the floor including assemblies using the gypsum panel and sheathing products listed in the Gypsum Association Fire Resistance Design Manual 5. The underside of a floor assembly that meets the performance criteria in accordance with the test procedures set forth in either of the following: 5.1. SFM Standard 12‐7A‐3; or 5.2. ASTM E29571/29/2020707A.8 Underside ofappendages Exception: Heavy timber Structural columns and beams do notrequire protection when constructed with sawn lumber or glue‐laminated wood with the smallest minimum nominal dimension of 4inches (102 mm). Sawn or glue‐laminated planks splined, tongue‐and‐grove, or set close together and well spiked. 5719

AIA East Bay Chapter 2019 CBCCode Update1/29/2020 708A.2.2 Operable Skylights.Operable skylights shall be protectedby a non‐combustible mesh screenwhere the dimensions of theopenings in the screen shall notexceed 1/8‐inch (3.2mm).1/29/2020708A.2.2 Operable skylights708A.4 (R337.8.4) Garagedoor perimeter gap weatherstripping 708A.4 (R337.8.4) Garage Door Perimeter Gap Weather stripping. Exteriorgarage doors shall be provided with weather stripping to resist the intrusionof embers from entering by preventing through gaps between doors anddoor openings, at the bottom, sides and tops of doors, from exceeding gabsexceed 1/8‐inch (3.2 mm). Weather stripping or seals shall be installed onthe bottom, sides, and tops of doors to reduce gaps between doors anddoor openings to 1/8‐inch (3.2 mm) or less. Gaps between doors and dooropenings shall be controlled by one of the following methods: 1. Weather stripping products made of materials that: (a) have been testedfor tensile strength in accordance with ASTM D638 (Standard Test Methodfor Tensile Properties of Plastics) after exposure to ASTM G155 (StandardPractice for Operating Xenon Arc Light Apparatus for Exposure of Non‐Metallic Materials) for a period of 2000 hours, where the maximumallowable difference in tensile strength values between exposed and non‐exposed samples does not exceed 10% , and (b) exhibit a V‐2 or betterflammability rating when tested to UL 94, Standard for Tests forFlammability of Plastic Materials for Parts in Devices and Appliances. 2. Door overlaps onto jambs and headers. 3. Garage door jambs and headers covered with metal flashing.1/29/20205859Instead of usingASTM E84 or UL723, the code nowallows compliancewith NFPA 286. Thistest is known as the“room corner” firetest. This test hasgood performanceprediction qualities.1/29/2020803.1.1Wall & Ceiling Finishtest criteria6020

AIA East Bay Chapter 2019 CBCCode Update1/29/2020803.3 HT in exit enclosures1/29/2020No interior finishrequirements forCLT or HT exceptnew provisionsfor meetingrequirements atinterior exitstairs & rampsand at exitpassageways61New sections address laminatedproducts over wood substrates. §803.11 covers factory‐producedmaterials and § 803.12 coverslaminates applied on‐site overwood substrates. The test criteriaare to be per NFPA 286 in §803.1.1.1, with the materialsmeeting the flame spread indexesfor ASTM E84 or UL 7231/29/2020803.11 & 12 Laminatedproducts on wood backing62903.3.1.2 – Attic SprinklersAttics that are used or intendedfor living purposes or storageare to be protected by anautomatic sprinkler system.1/29/2020Per § 903.3.1.2.3, attic fire protection must beprovided under certain conditions:Where fuel‐fired equipment isinstalled in an unsprinkleredattic, not fewer than one quick‐response intermediatetemperature sprinkler is to beinstalled above the equipment.6321

AIA East Bay Chapter 2019 CBCCode Update1/29/20201/29/2020Short BreakQuestions?64AS FOR EVERY PREVIOUSEDITION OF THE IBC‐BASEDCBC THE ORGANIZATIONAND SOME OF THENOMENCLATURE INCHAPTER 10 HAS BEENREVISED. MOST CHANGESARE EDITORIAL, BUTAPPROACH THE CHAPTERWITH CAUTION AND USEKEY WORD SEARCHES1/29/2020Chapter 10 – Means ofEgress65The occupant load factor forconcentrated business uses liketelephone call centers, tradingfloors, “tech industry” uses andsimilar business use areas with ahigher density of occupants thana normal business may be theactual occupant load with AHJapproval, but not less than oneoccupant per 50 square feet(4.65 m2) of gross occupiablefloor space.1/29/20201004.8 ConcentratedBusiness Uses6622

AIA East Bay Chapter 2019 CBCCode Update1/29/2020Per § 1006.3.1, thepath of egress travel toan exit may no

Code Update 1/29/2020 2 Learning Objectives 1. Identify significant changes made in the basic 2018 IBC and IRC that are included in the 2019 CBC. 2. Identify California‐specific changes to the 2018 IBC and IRC in the 2019 CBC and CRC. 3. Identify the changes made to the 2016

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