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TABLE R1001.1 SUMMARY OF REQUIREMENTS FOR MASONRY FIREPLACES AND CHIMNEYS � <br /> 2 FT MiN O <br /> © MASONRY CAP <br /> BEAMD _ rTEM LETTER' REQUIREMENTS <br /> MORTAR CAP — BRICK BLOCK o <br /> �n Hearth slab thickness A flinches �Q wJ <br /> Hearth extension B 8 inch fireplace opening<6 square feet. w 0 w <br /> EFFECTIVE cL ANc L (each side of opening) 12 inch fireplace opening z 6 square feet z°S= <br /> U FLUE AREA 10 FT h11N _ _ `� a a <br /> I�I Hearth extension 16 inch fireplace opening<6 square feet C oQ <br /> (I SONO BEAM FLASHIN IN� l (front of opening) 20 inch fireplace opening a 6 square feet .I z E d <br /> r ANCHORAGE w~—� - -' o.'D <br /> f" WIDTH OF FIREPLACE Hearth slab reinforcing D Reinforced to carry its own weight and all imposed loads. �/o y R <br /> OPENING <br /> Thickness of wall offirebox E 10 inch solid brick or 8 inches where a firebrick lining is used. <br /> PLAN VIEW Thickness in firebrick 114 inch maximum. <br /> FLUE LINING Distance from top of opening to throat F 8 inches <br /> TAR CAP <br /> Smoke chamber wall thickness 6 inches <br /> ND BEAM Unlined walls G 8 inchesof ASI"" <br /> BOND�'M"I` NflffR(l <br /> ORIZONTAL Chimney Four No.4 full-length bars for chimney up to 40 inches wide. ? r <br /> ANCHORAGE Z FT MININFORCING TIES Vertical reinforcingb H Add two No.4 bars for each additional 40 inches or fraction ofwidth or each additional flue. <br /> CLEARANCE - ?� 30695 <br /> 10 FT MIN ® Horizontal reinforcing J 1/4 inch ties at 18 inches and two ties at each bend in vertical steel. RF:r o.? <br /> HORIZONTAL - 'S/ONALSt <br /> REINFORCING TIES, FULL MAS04YRY �H vERT1CAL Band beams K No specified requirements. S�is(2k <br /> WALL \ LASHING REINFORCING Fireplace lintel L Noncombustible material. <br /> ANCHOR STRAP Solid masonry units or hollow masonry units grouted solid with not less than 4-inch nominal <br /> WALL THICKNESS VENEER TIE Chimney walls With flue lining M thickness. <br /> PARGE WITH CLEARANCE DETAIL WITH <br /> MORTAR 1• WOOD <br /> 5 Distances between adjacentflues — See Section R1003.13. <br /> BIN MIN. — ANCHORAGE 2%IN <br /> SMOKE BOLTS EACH STRAP — Effective flue area(based on area of P See Section R1003.15. <br /> ©CHAMBER FLUE LINER fireplace opening) <br /> S�MIN 1 CLEARANCE Clearances <br /> DISTANCE 21 5 IN MIN. <br /> VERTICAL IN,MIN® PARGE18 IN Combustible material See Sections R1001.11 and RlD03.18.REINFORCING HORIZONTAL R <br /> MwrrH _MEASURE HEIGHT BIN MIN REINFORCING TIES Mantel and trim See Section R1001.11,Exception 4. <br /> h IN MIN <br /> FIREBOX WALL, LNT OF FREE STANDING A IN.MIN. 1 IN.THICK MASONRY UNITS Above roof 3 feet at roofline and 2 feet at 10 feet <br /> ©THICKNESS � FIREPLACE FROM _ <br /> HEARTH FIREPLACE TOP OF FOOTING REINFORCING Anchorageb J <br /> MAIN FIREBRICK I EXTENSION OPENING F I _ <br /> @ HEIGHT UNITE L I 20 IN LAP IF SPLICED TO Strap 31i8 inch x 1-inch LJ,f <br /> HEARTH SLAB oo I HEARTH 1— FOOTING DOWELS U M Q <br /> Q THICKNESS _ _ __ EXTENSIONS FIREBOX WALL Number S Two z LU O <br /> 01 SS Embedment into chimney 12 inches hooked around outer bar with 6 inch extension. oo w <br /> + FOOTING WIDTH W \ <br /> H SIAR 181N MIN GIN AROUND / Q <br /> ASH <br /> EANO TOPTIONAL IREMEORC6NItN�GRALIE �^;;,p��,`,'_. ! I FREE STANDING FIREPLACE Fasten to 4joists 0 Q C7 <br /> 1 FOOTING DEPTH J <br /> Bolts Two t/2 inch diameter (n Q <br /> QT FOOTMG WIOTh+ -F <br /> j + OOTING;YAOTH® GRADE w <br /> DE Footing <br /> m � <br /> BARS IN <br /> M CO HEARTH 2L IN MIN <br /> � Q F- <br /> - <br /> FOOT Thickness T 12 inches min. <br /> Width 6 inches each side of fireplace wall. W <br /> BRICK FIREBOX AND CHIMNEY— BRICK FIREBOX AND BLOCK CHIMNEY - W N <br /> SEC"ONAL SIDE VIEW ON WOOD FLOOR SECTIONAL SIDE VIEW ON CONCRETE SLAB For Si:1 inch=25.4 mm,1 foot=304.8 mm.1 square fxt=0.0929.2N W U <br /> Note:This table provides a summary of major requirements for the construction of masonry chimneys and fireplaces.Letter references we to Figure R1001.1,which shows examples of 0 to \ <br /> typical construction.This table does not cover ell requirements,nor does it cover all aspects of the indicated requirements.For the actual mandatory requirements of the code,see the O <br /> W <br /> indicated section of text. (I, <br /> a.The letters refer to Figure R1001.1. v <br /> FIGURE R1001.1 FIREPLACE AND CHIMNEY DETAILS b.Not required in Seismic Design Category A,Bor C. '^ <br /> wl <br /> U <br /> a O 2021 WASHINGTON STATE RESIDENTIAL CODE-FIGURE 1001.1 FIRE AND CHIMNEY DETAILS AND TABLE R1001.1 <br /> w N.T.S. <br /> w <br /> o <br /> O <br /> UI <br /> 16 <br /> a` a <br /> (R)GROUT FILL PER CRC R606 <br /> m (R)1/4"TIES VERTICALLY SPACED <br /> 18"CC MAX.PROVIDE 2 TIES AT (R)CLAY MASONRY UNITS <br /> EACH BEND IN VERTICAL BARS <br /> c <br /> a' o <br /> 3/16"X 1"STEEL ANCHOR STRAP EA SIDE.EMBED p- <br /> O (4)-H4 CONT VERTICAL BAR W/ -- -' _ 12"MIN AND HOOK AROUND OUTER VERTICAL <br /> BAR AND EXTEND HOOK 6"BEYOND THE BEND. rn <br /> MIN 1/2"GROUT COVER (n 0 <br /> FASTEN TO TIE BEAM W/2-1/2"DIA BOLTS <br /> Z <br /> (R)EXTERIOR WALL PER PLAN O <br /> in <br /> W <br /> of <br /> r O <br /> (E)EXTERIOR WALL PER PLAN (N)TIE BEAM PER PLAN Co <br /> 0 <br /> (E)CEILING JOIST PER PLAN (R)CEILING JOIST PER PLAN <br /> m DATE <br /> 8/15/2024 <br /> DRAWN <br /> O CHIMNEY ANCHORAGE KBM <br /> 3/4"=l'-0" <br /> 78 JOB NO <br /> C4651066.00 <br /> SHEET S4.1 <br /> [,t� <br /> n VT.1 <br />