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B-2017-1651
CITY OF CUPERTINO BUILDING PERMIT BUILDING ADDRESS: CONTRACTOR: PERMIT NO:B-2017-1651 10458 LOCKWOOD DR APT B CUPERTINO,CA(342 29 012)110458 LOCKWOOD J K MASONRY DR APT A CUPERTINO,CA(342 29 012) SAN JOSE,CA 95128 OWNER'S NAME: CAYTON.DAVID W TRUSTEE DATE ISSUED:09/25/2017 OWNER'S PHONE:909-802-5862 PHONE NO:(408)287-2398 LICENSED CONTRACTOR'S DECLARATION BUILDING PERMIT INFO: License Class C_29 Lic. 04086 Contractor J K MASONRY Date 05/31/2019 X BLDG _ELECT _PLUMB MECH X RESIDENTIAL_COMMERCIAL I hereby affirm that I am licensed under the provisions of Chapter 9(commencing with Section 7000)of Division 3 of the Business&Professions Code and that my license is in full force and effect. JOB DESCRIPTION: • REPLACE EXISTING FIREPLACES(2) I hereby affirm under penalty of perjury one of the following two declarations: i. I have and will maintain a certificate of consent to self-insure for Worker's Compensation,as provided for by Section 3700 of the Labor Code,for the performance of the work for which this permit is issued. I have and will maintain Worker's Compensation Insurance,as provided for by .or gj Section 3700 of the Labor Code,for the performanceof the work for which this permit is issued. Sq.Ft Floor Area: Valuation:$4465.00 APPLICANT CERTIFICATION I certify that I have read this application and state that the above information is correct.I agree to comply withall city and county ordinances APN Number: Occupancy Type: and state laws relating to building construction,and hereby authorize 342 29 012 representatives of this city to enter upon the above mentioned property for inspection purposes. (We)agree to save indemnify and keep harmless the City of Cupertino against liabilities,judgments,costs,and expenses which PERMIT EXPIRES IF WORK IS NOT STARTED may accrue against said City in consequence of the granting of this permit. WITHIN 180 DAYS OF PERMIT ISSUANCE OR Additionally,the applicant understands,and will comply with all non-point source reg' laiions per he Cupertin. ieipal Code,Section 9.18. 180 DAYS FROM LAST CALLED INSPECTION. Signatur: Date 09-25-2017 Issued by:Kim Dunbar IIIr Date:09/25/2017 OWNER-BUILDER DECLARATION I I I hereby affirm that I am exempt from the Contractor's License Law for one of the RE-ROOFS: following two reasons: All roofs shall be inspected prior to any roofing material being installed.If a roof is !1: I,as owner of the property,or my employees with wages as their sole installed without first obtaining an inspection,I agree to remove all new materials for compensation,will do the work,and the structure is not intended or offered for inspection. sale(Sec.7044,Business&Professions Code) 2. I,as owner of the property,am exclusively contracting with licensed Signature of Applicant: contractors to construct the project(Sec.7044,Business&Professions Code). Date:09-25-2017 I hereby affirm under penalty of perjury one of the following three declarations: ALL ROOF COVERINGS TO BE CLASS"A"OR BETTER 1. I have and will maintain a Certificate of Consent to self-insure for Worker's Compensation,as provided for by Section 3700 of the Labor Code,for the performance of the work for which this permit is issued. HAZARDOUS MATERIALS DISCLOSURE 2. I',have and will maintain Worker's Compensation Insurance,as provided for by I have read the hazardous materials requirements under Chapter 6.95 of the Section 3700 of the Labor Code,for the performance of the work for which this California Health&Safety Code,Sections 25505,25533,and 25534. I will permit is issued. maintain compliance with the Cupertino Municipal Code,Chapter 9.12 and the 3. I'certify that in the performance of the work for which this permit is issued,I Health&Safety Code,Section 25532(a)should I store or handle hazardous shall not employ any person in any manner so as to become subject to the material. Additionally,should I use equipment or devices which emit hazardous air contaminants as defined by the Bay Area Air Quality Management District I Worker's Compensation laws of California. If,after making this certificate of will maintain compliance with the Cupertino Municipal Co •, hapter 9.12 and exemption,I become subject to the Worker's Compensation provisions of the the Health&Safety C 6d)Sectio 25505,255. ,a r 5534. Labor Code,I must forthwith comply with such provisions or this permit shall • J1 be deemed revoked. Owner.or authorized agent APPLICANT CERTIFICATION Date:09-25-2017 • I certify that I have read this application and state that the above information is 3 I a► ESDI Y correct.I agree to comply with all city and county ordinances and state laws I hereby affirm that there is a construction lending agency fo the performance relating to building construction,and hereby authorize representatives of this city of work's for which this permit is issued(Sec.3097,Civ C.) to enter upon the above mentioned property for inspection purposes. (We)agree Lender's Name to save indemnify and keep harmless the City of Cupertino against liabilities, judgments,costs,and expenses which may accrue against said City in Lender's Address consequence of the granting of this permit. Additionally,the applicant understands and will comply with all non-point source regulations per the Cupertino Municipal ARCHITECT'S DECLARATION Code,Section 9.18. I understand my plans shall be used as public records. Licensed Signature Date 09-25-2017 Professional CONSTRUCTION PERMIT APPLICATION \ // COMMUNITY DEVELOPMENT DEPARTMENT • BUILDING DIVISION 10300 TORRE AVENUE • CUPERTINO,CA 95014-3255 e. 9sw (408)777-3228 • building@cupertino.org PEMIT#B-20(1' - /(et,j 1 CUPERTINO REV# DEE# ❑in NEW CONSTRUCTION ❑ADDITION ❑ALTERATION ❑T.I. 111MEP ❑RE-ROOF ❑SWIMMING POOL/SPA PROJECT 0 --CD CV--VO vO 0 nrA I ` <-r t1 n�C- °ICI O v2-' �9 0 C Z NER NAME PHONE E-MAIL L/ love ar 41- <o�-'S�.c 'angel cL\oho @ \/cthc�').c� STREET ADDRESS J CITY, STATE,ZIP J %CONTRACTOR NAME 0 OWNER-BUILDER COMPANY NAME LICENSE NUMBER LICENSE TYPE racAlse_s lee-\Lc_u 3--"k \cSorwr 4 OH DS S C- 2\ STREET ADDRESS S ATE,ZIP 9.5\ i I L1()b ‘�ori e_S AV �n 3& e ( C- .5\ o5 E-MAIL g PHONE BUS.LIC# :Tkl\111o� 413 (a[(y\ �I.ccs C77-��'-�o a�s1 -a 39 I H 000�c- ❑ARCHITECT .❑OWNER ❑OWNER AG ENTI 1CONTRACTOR AGENTL]ENGINEER 0 DEVELOPER 0 TENANT CONTACT NAMEak me S vem ,E-MAIL- �1\� Lios �\ 'ca'Vr1S `i UV �- 1Ccey� Nv� CITY,STATE,ZIP Ukn �bC� l C 1 e\S .T UPHONE LEo6)).5 1 3- O DECRIPTON U TecAy- ckown k00-l-h -- \ r lacers --c\-cD cox: ' roafi\nom O.' i\a. rbow,\ - 1 ekc� -fib C! bvu 1d\ Cocs� , AESINGLE-FAY/DUPLEX��0 MULTI-FAMILY 0 INDUSTRIAL 0 COMMERCIAL I EXISTING USE EXISTING SF NEW FLOOR SF PORCH SF DECK SF DEMO SF STORIES#'TOTAL NET SF USE TYPE OCC SQ.FT. VALUATION($) REMODEL REMODEL KITCHEN REMODEL OTHR GARAGE ❑ATTACHED BATHROOM SF SF SF SF 0 DETACHED EXISING ❑YES E[cH•ILER 0 YES SECOND STORY ADDITION ❑YES FIRE SPRINKLERS 0 NO 0 NO ❑NO DWELLING. SECOND DWELLING ❑yES,0 ATTACHED❑DETACHED 1 OTHER ' U # UNIT ADDITON: ❑'NO S F ; I WY\nti 1 . ai l POOLS( 0 FIBERGLASS ❑VNYL-LINED ❑GUNITE PREFABRICATED - d POOL-SF SPA-SF I I ,SPA ATTACHED❑YES 0 NO TOTAIdFi REC $ ` . TOTA VALUATION: Commercial or Multi-Family Buildings with Public Swimming Pools requires Department of Environmental Heath approval Jy / u')�I °° e-j C./ 0 ` lP, VI 'C-lf. RE,-ROOF(EXISTING ROOF TYPE: ❑BUILT-UP ROOF❑ASPHALT SHINGLES❑WOOD SHAKES❑WOOD SHINGLES 0 TILE OTHER(SPECIFY) REIvMOVE/REPLACE❑NO 'IF NO PLYWOOD El 1/2- ❑3/8" PLYWOOD TYPE: PITCH: ROOF CLASS Ii' ElYES(;#OF'LAYERS THICKNESS❑5/8" OTHER :100 ❑CDX OTHER .12I PROPOSED ROOF TYPE:❑BUILT-UP ROOF ❑ASPHALT SHINGLES❑WOOD SHAKES❑WOOD SHINGLES ❑OTHER j *Provide a signed,copy of the Cupertino's Tear-Off Policy SF #of SQUARES J By my signature below certify'to each of the following: I am the property owner or authorized agent to act on the property owner's behalf. I have,read this application and the'nformation I have provided is correct. I have read the Description of Work and verify it is accurate. I agree td'comply with all applicable local ordinances and state laws relating to building construction. I authorize representatives of Cupertino to enter the above-identified property,for inspection purposes.' Iacknowledge and authorize all information contained on this application form to be made available for public record. CI ` r h Signature of Applicant/Agent: ''` Y / ' Date: SUPPLEMENTAL INFORMATION R,s AIRED [[ *New SFD/Second Dwellirig,pnits/M •., 'y Dwellings:A Demolition permit is required prior to issuance of a building permit for all new construction. *Commercial Buildings: Provide a,cbmpleted Hazardous Materials Disclosure form if any Hazardous Materials are being used as part of this project. *Copy of Planning Approval Letter{or Meeting with Planning prior to submittal of Building Permit application. *HOA-Provide a letter of approval frdni the Home Owner's Association , BldgApp_2017.doc revised 08/01/17 d..r CALIFORNIA RESIDENTIAL CODE — MATRIX ADOPTION TABLE CHAPTER 10 — CHIMNEYS AND FIREPLACES (Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. (' See Chapter 1 for state agency authority and building applications.) BSC- HCD DSA OSHPD Adopting agency BSCCG SFM 1 2 1/AC AC SS CC 1 2 3 4 BSCC DPH AGR DWR CEC CA SL SLC Adopt entire chapter Adopt entire chapter as amended(amended X sections listed below) Adopt only those sections X I I that are listed below ' Chapter/Section fi R1001.3 X ' R1001.4 X Table R1001.1, Note b' X R1003.3 X ' R1003.4 X 1R1003.9.2 1 X I I R1003.11.3 X ' R1003.14 X R1004.1.1 X II CHAPTER 10 • ( SECTION R1001 from bonding with the flue liner so that the flue liner is MASONRY FIREPLACES free to move with thermal expansion.For chimneys more R1001.1 General.Masonry fireplaces shall be constructed in than 40 inches(1016 mm)wide,two additional No.4 ver- accordance with this,section and the applicable provisions of tical bars shall be provided for each additional flue incor- Chapters 3 and 4. porated into the chimney or for each additional 40 inches (1016 mm)in width or fraction thereof. R1001.2 Footings and foundations. Footings for masonry fireplaces and their chimneys shall be constructed of concrete R1001.3.2 Horizontal reinforcing. Vertical reinforce- or solid masonry not less than 12 inches (305 mm) thick and ment shall be placed within '/4-inch (6.4 mm) ties, or shall extend not less than 6 inches(152 mm)beyond the face of other reinforcing of equivalent net cross-sectional area, the fireplace or foundation wall on all sides'.Footings shall be placed in the bed joints in accordance with Section R606 founded on natural,undisturbed earth or engineered fill below at not less than every 18 inches (457 mm) of vertical frost depth.In areas not subjected to freezing,footings shall be height. Two such ties shall be installed at each bend in not less than 12 inches (305 mm)below finished grade. the vertical bars. (t R1001.2.1 Ash dump, cleanout. Cleanout openings R1001.4 Seismic anchorage.Masonry or concrete chimneys `... located within foundation walls below fireboxes, when in all structures regulated by this code assigned to Seismic ' provided, shall be equipped with ferrous metal or masonry Design Category C, Do, D1 or D2 shall be anchored at each doors and frames constructed to remain tightly closed floor, ceiling or roof line more than 6 feet(1829 mm) above except when in use. Cleanouts shall be accessible and grade, except where constructed completely within the exte- located so that ash removal will not create a hazard to rior walls. Anchorage shall conform to the requirements of combustible materials. Section R1001.4.1. c R1001.3 Seismic reinforcing. Masonry or concrete chim- R1001.4.1 Anchorage..Two 3/15-inch by 1-inch (5 mm by neys in all structures regulated by this code assigned to Seis- 25 mm) straps shall be embedded not less than 12 inches mic Design Category C, Do, DI or D2 shall be reinforced. (305 mm)into the chimney. Straps shall be hooked around Reinforcing shall conform to the requirements set forth in the outer bars and extend 6 inches (152 mm) beyond the > Table R1001.1 and Section R606. bend. Each strap shall be fastened to not less than four R1001.3.1 Vertical reinforcing. For chimneys up to 40 floor ceiling or floor joists or rafters with two 1/2-inch l inches (1016 mm) wide, four No. 4 continuous vertical (12.7 mm)bolts. bars shall be placed between wythes of solid masonry or R1001.4.1.1 Cold-formed steel framing. Where cold- within thecells of hollow unit masonry and grouted in formed steel framing is used, the location where the 1/2- accordance with Section R606. Grout shall be prevented inch (12.7 mm) bolts are used to attach the straps to the 2016 CALIFORNIA RESIDENTIAL CODE 479 • CHIMNEYS AND FIREPLACES . A.1 o e SUMMARY OF REQUIREMENTS FOR MASONRY FIREPLACES AND•CHIMNEYS, ITEM LETTER° REQUIREMENTS — Hearth slab thickness A Hearth extensionB ' 8"fireplace opening<6 square foot. (each side of:;opening) ',. , .. 12",fireplace opening>_6 square:foot. ' Hearth extensionC • .-16"fireplace opening<6.square foot. (front of opening) 20",fireplace.opening' .6 square foot. .. Hearth slab reinforcing D Reinforced to carry its own weight and all imposed loads. - Thickness of wall of firebox E 10"solid brick or 8"where afirebrick lining is used. Joints in firebrick /4 maximum. , ; Distance from top of opening to throat F 8" - ' Smoke chamber wall thickness G 6" Unlined walls 8" Chimney Four No.4 full-length bars for chimney up to 40't.wide. Vertical reinforcing' H_ Add two No.4 bars for each additional 40"or fraction of width"or each additional flue. Horizontal reinforcing J 1/4'ties at 18"and two ties at each bend in vertical steel. Bond beams K No specified requirements. ' Fireplace lintel L Noncombustible material. Chimney walls with flue lining M Solid masonry units or Hollow masonry units grouted solid with not less than 4-inch nominal thickness. Distances between adjacent flues — See Section R1003.13. Effective flue area(based on area of fireplace opening) P See Section-R1003.15...`.,..> • ' Clearances Combustible materialR See Sections R1001.11 and R1003.18. Mantel and trim See Section R1001.11,Exception 4. Above roof 3• 'at roofline and 2'at 10'. Anchorage' . Strap3/16"X 1" - Number S Two - Embedment into chimney'`- 12"hooked around outer bar with 6"extension. Fasten to 4 joists Bolts . Two'%Z"diameter. Footing • Thickness „. . _ T 12"min. Width 6"each side of fireplace wall. For Sl: 1 inch=25,4 ny*n ''l foot=304.8'iuin 1 square foot=0.0929 m2. Note:This table provides a summary Of major requirements for the construction of masonry chimneys and fireplaces.Letter references are,to Figure gloom, which shows examples of typical construction.,This table,does not cover all requirements,.nor does it cover all:aspects of the indicated requirements.For the actual mandatory requirements of the code,see the indicated section of text. - f a.The letters refer to Figure R100k1 i . .^-• .' ` ..,,,m•,-,'5, t`" - t _ b.Not required in Seismic Design Category A or B. - `r> , ;i_ • . fr e„reinforced with not less than aµ3 inch Walls,*ii.be 10 inches (254 mm) of;solid masonry Fire- arcing•shall b 3.incht,x 0229-inch(76'mmX76 mm;X 5 8 mm)steel brick shall conform to ASTM C27)ori C1261 and shall be plate on top of the strap that is ed tell frami theng laid with medium duty refractory mortar,conforming to ' with notfewer,tlan seven No 6 screws for each bolt •• ASTM Cl99 5 }.4 >;as ,,-d r :, f s �,� r ? °�)t x § (., t�,tt +.6 t t.11 O.t, i .t S-' 6 n r i. -4 R10015 Firebox walls Masonry fireboxes shalt be con ; R100151 Steel fireplace units Installation of steel fire- structedl of;solid µmasonry-iunits,Atihma ollow.. sonry{units 1 place units with ma solid sonry to form a masonry fireplace grouted solid,`„stone or concrete Where'7 lining of firebrick ,i is permitted when installed either in accordance i with the not less than 2 inches(51 mm) thick or other approved lin- •requirements''of their listing or the;requ rements,of this mg)is.provided„the{muumum',thickness of back and,side- section Steel fireplace units incorporating a steel,firebox walls;"shall each be"8 inches (203'"nun) of solids.:masonry, lining shall be con`s`tructed with steel'not less than,/4'inch €'_ including the lining The width of joints between firebricks (6 4 .mm) thick, and lan air circulating chamber `that is % �,, ' shall'i o't be"greater than i/4'inch(6 4"mm) Where a lining'is ' 'duc`ted'to the'intenor of the building The`firebox lining , not provided;thetotal minimum thickness of back and side '. shall''be encased with solid masonry to provide a total ,. r :1 a ,:. 3 '? i r i', t' )•' ItiVAl' x i r•. r .d„r rpi Yir rt �e-� 'ai 1 k{i ! s” 7 {F:t � 3 ti X31 � ,#Ef P-3 1 4 4 4 E 480. 2016 CALIFORNIA RESIDENTIAL CODE L CHIMNEYS AND FIREPLACES Q BOND 2 FT MIN. BEAM MORTAR CAP 7 = E I MASONRY CAP BRICK BLOCK ( © 1 ' ,mmCsDO0 EFFECTIVE 1 1 CLEARANCE 1 -C � FLUE AREA 'f 1 10 FT MIN. __ -_ QK BOND BEAM I 1mi.I---- - 4..'.0 FLASHING 18 IN] II': I 1 ANCHORAGE WIDTH OF FIREPLACE OPENING 1 i ' PLAN VIEW FLUE LINING: 1• ' ` ' MORTAR CAP GI0 BOND BEAM QK BOND BEAM ' /' lit4 1 HORIZONTAL ©ANCHORAGE 2 FT MIN.di : IrMili REINFORCING TIES CLEARANCE ■ ./ HORIZONTAL _ 10 FT MIN. P .1 REINFORCING TIES 1 DETAIL FOR I' FULL MASONRY I VERTICAL P ,11 WALL \ LASHING ©REINFORCING ANCHOR STRAP QM WALL THICKNESS i r % VENEER TIE �m. oi�1 v. ;' ( PARGE WITH ref , CLEARANCE �I DETAIL WITH AIWA / ' MORTAR WOOD 8 IN.MIN. 0 ►�/ �! MATERIAL /� /'� ANCHORAGE 2'/IN. 4 SMOKE 1*0 , pi BOLTS EACH STRAP ©CHAMBER 'A • r FLUE LINER ''/:IN.MIN. ' V� THERMAL \ CLEARANCE % :1 �q DISTANCE 21 \ i 6 IN.MIN. ©RE REINFORCING CAL ' ,� IN.MIN. PARGE\8 IN_.,.8 INA ,/ / HORIZONTAL / WITH -�1 �/ . MORTAR 8 IN.MIN. '11164r- .0 i. , REINFORCING TIES 0 FIREBOX .IJ �M O MEASURE HEIGHT %IN.MIN. ©THICKNESAL�/ W - LINTEL© FFIIREPLACE FROMF FREE G 4 IN.MIN. % 1111 �it i4 IN.THICK MASONRY UNITS EXTENSION TOP OF FOOTING O ''' 1 HEARTH 20 IN. FIREPLACE i MIN.FIREBRICK �, I © OPENING \ 'i , ® 20 IN.ICCALL RELAP IF INFORCING DITO LINTEL FOOTING DOWELS HEARTH SLAB I� I~`I . HEARTH )11i/ II ®THICKNESS �— ►►, EXTENSION n $ I FIREBOX WALL _ /_ ��; I° il� THICKNESS /� 0 Ate__/ FOOTING WIDTH HEARTH SLAB 18 IN.MIN.( ASH DUMP OPTIONAL6 IN.AROUND REINFORCEMEN GRADE ©Ao CLEAN OUT / �A_-� �- 'c . STANDING FIREPLACE �, c: '1' 12'-\\ .i l \�////, o¢ o -- o o I \ / FOOTING DEPTH � _ QT FOOTING WIDTH H �/ / tFOOTING WIDTH O NATURAL o'�'o�"."o at ' GRADE ,00 o ��' ..:.,--s) Q. Io BOOTING ARS IN ONCRET HEARTH 20 IN.MIN. it `•.1BRICK FIREBOX AND CHIMNEY– SECTIONAL SIDE VIEW ON WOOD FLOOR BRICK FIREBOX AND BLOCK CHIMNEY– SECTIONAL SIDE VIEW ON CONCRETE SLAB For SI 1 inch=25.4 mm,1 foot=304.8 mm. FIGURE R1001.1 limille ErIal�lkalD CI 1MNEY eI,ETA • 2016 CALIFORNIA RESIDENTIAL CODE 481 .:, . '.,I CHIMNEYS AND,FIREPLACES ' • thickness at the back and sides of not less than 8 inches or masonry, supported by noncombustible materials, and (203 mm), of which not less than 4 inches(102 mm) shall reinforced to carry their own weight and all imposed loads. ,: be-of-solid-masonry-or-c- re-re- air—Circulating-air ducts-used -Combustible-material_shalLnotzemain against the_underside _ with steel fireplace units shall be constructed of metal or of hearths and hearth extensions after construction. masonry. R1001.9.1 Hearth thickness. The minimum thickness of R1001.6 Firebox dimensions...The firebox of a concrete or fireplace hearths shall be 4 inches (102 mm)., masonry fireplace shall have a minimum depth of 20 inches R1001.9.2 Hearth extension thickness. The minimum (508 mm). The throat shall not be less than 8 inches (203 thickness of hearth extensions shall be 2 inches(51 mm). mm) above the fireplace'opening: The throat opening shall not be less than 4 inches (102 mm)deep.The cross-sectional Exception:Where the bottom of the firebox opening is area of the passageway: above the firebox, including the raised not less than 8 inches(2Q3 mm)above the top of throat, damper and smoke chamber, shall not be less than the the hearth extension, a hearth extension of not less than cross-sectional area of the flue. 3/8-inch-thick (10 mm) brick, concrete, stone, tile or Exception: Rumford fireplaces shall be permitted pro- other approved noncombustible material is permitted. vided that the depth of the fireplace is not less than 12 R1001.10 Hearth extension dimensions.Hearth extensions inches (305 mm) and not less than one-third of the width shall extend not less than 16 inches (406 mm)in front of and of the fireplace opening, that the throat is not less than 12 not less than 8 inches(203 mm).beyond each side of the fire- inches (305 mm) above the lintel and is not less than '/20 place opening. Where the fireplace opening is 6 square feet the cross-sectional area of the fireplace opening. (0.6 m2) or larger, the hearth extension shall extend not less R1001.7 Lintel and throat.Masonry over a fireplace open than 20 inches (508 mm) in front of and not less than 12 ing shall be supported by a lintel of noncombustible material. inches(305 mm)beyond each side of the fireplace opening. The minimum required bearing length on each end of the fire- R1001.11 Fireplace clearance. Wood beams, joists, studs place opening shall be 4 inches (102 mm). The fireplace and other combustible material shall have_a clearance of not throat or damper shall be located not less than 8 inches (203 less than 2 inches (51 mm) from the front faces and sides of mm)above the lintel. masonry fireplaces and not less than 4 inches(102 mm)from R1001.7.1 Damper.Masonry fireplaces shall be equipped the back faces of masonry fireplaces. The airspace shall not with a ferrous metal damper located not less than 8 inches be filled, except to provide fireblocking in accordance with- Section R1001.12. (203 mm)above the top of the fireplace opening.Dampers E shall be installed in the fireplace or the chimney venting Exceptions: ), the fireplace,and.shall be operable from the room contain- 1. Masonry fireplaces listed and labeled for use in con- ing the fireplace. tact with combustibles in accordance with UL 127 R1001.8 Smoke chamber. Smoke chamber walls shall be and installed in accordance with td'e'manufacturer's constructed of solid masonry units; hollow masonry units instru'ctions;are permitted to have combustible mate- grouted solid,,stone or,concrete The total minimum thickness rial;in contact with their exterior surfaces. of front, back and side walls shall be 8 inches (203 nun) of 2. Where masonry fireplaces are part of masonry or solid masonry. The inside surface shalLbe parged smooth concrete walls,combustible materials shall not be in with refractory mortar conforming to ASTM C199. Where a contact with the masonry or concrete walls less than lining of firebrick not less than 2 inches (51 mm) thick, or a 12 inches (306.mm) from the inside surface of the lining or vitrified clay not less than 5/$inch(16 mm)thick,.is ning nearest firebox lining provided,the,total minimum thickness of front,back.and side . walls shall be,6 inches(1'52 mm) of d c solid masonry,including 3. Exposeombustible trim and the edges of sheath- the lining Firebrick shall conform to ASTM C1261 and shall ing materials such as wood siding,flooring and gyp be'laid'with'medium-`duty:refractory mortar='conforming'to m`suboard shall be permitted`to abut the.masonry ASTM C199. Vitrified clay linings shall,conform'to ASTM. fireplace sidewalls and hearth extension in accor- C315. dance with Figure R1001 11 provided such coin- R1001.8:1 Smoke chamber dimensions The inside bustible trim or sheathing is notless than 12 inches height:of the smoke chamber from the fireplace throat to (305 mm)from the inside surface of the nearest fire the beginning of the flue shall not be greater than he box lining. inside width of the fireplace opening..The:mside surface of 4. Exposed combustible mantels'or trim may be placed U. the smoke`chamberj'shallqnot be`inclined more'than 45 directly on the masoiiuy fireplace front,surrounding degrees ,(0,79 rad) from vertical where prefabricated the fireplace opening ,providing such combustible smoke'"chamber• linings are .used or. where the smoke materials are not placed within 6 inches(152 min)of chamber walls are..'rolled or.sloped rather than corbeled. a fireplace opening yCombustible material within;12 Where the nside.surface of the'smoke chamber..is formed inches (306 mm) of the fireplace opening shall not by`corbeled masonry,the walls shall not be corbeled more j.' ,project''more than '/S inch"(3`mm) for each 1-inch than 30 degrees(0.52 rad)from vertical. . 1 (25 mm)distance from such an opening. R1001.9 Hearth and hearth extension: Masonry fireplace R1001.12 Fireplace.;fireblocking. Fireplace fireblocking hearths"and hearth extensions shall he constructed of concrete shall comply with the'provisions of Section R602 8. . 482 2016 CALIFORNIA RESIDENTALICODE