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EXCERPTS OF THE 20I� International Residential Code: Part ill CHAPTER S � 9 C��,�;;r,1�-�1VE �
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<br /> SECTION RSOI CHAPTER 9 �
<br /> GENERAL ROOF ASSEMBLIES �; �
<br /> Precision � Grace ` -
<br /> Rg0�. I APPLICATION. 6619 132nd AVE NE
<br /> THE PROVISIONS OF THIS CHAPTER SHALL CONTROL THE DESIGN AND CONSTRIICTION OF THE R903. I GENERAL PMB 242 , �
<br /> RODF-CEILING SYSTEM FOR AL(. Bl11LDINGS. ROOF DECK$SHALL BE COVERED WITH APPROVED ROOF COVERING$SECURED TD THE Kirkland, WA 98033
<br /> BUILDING OR STRUCTURE 1N ACCORDANCE WITH THE PROVISIONS OF THIS CHAPTER. ROOF
<br /> RSO I.2 REQUIREMENTS. ASSEMBLIES SHALL BE DESIGNED AND 1NSTALLED IN ACCORDANCE WITH THIS CODE AND 206-619-3995
<br /> ROOF AND CEILING CONSTRUCTION SHALL BE CAPABLE OF ACCOMMODATING ALL LOADS THE APPROVED MANUFACTLIRER'S WSTALLATION INSTRUCTIONS SUCH THAT THE ROOF 2eclecuc7@gmail.com '
<br /> IMPOSED ACCORDING TO SECTION R301 AND OF TRANSMITTING THE RESULTING LOADS TO ASSEMBLY SHALL SERVE TO PROTECT THE BUILDING OR STRUCTURE. Skype:eclecucseven
<br /> THE Sl1PPORTING STRIICTIIRAL ELEMENTS.
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<br /> R801.3 ROOF DRAINAGE. �
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<br /> IN AREAS WHERE EXPANSIVE OR COLLAPSIBLE SOILS ARE KNOWN TO EXIST,ALL DWELLINGS � • �
<br /> SHALL HAVE A CONTROLLED METHOD OF WATER DISPOSAL FROM ROOFS THAT WILL COLLECT R903.2 FLASHING. �
<br /> AND DISCHARGE RODF DRAINAGE TO THE GROUND SLIRFACE AT LEAST 5 FEET(I 5�4 MM) FLASHINGS SHALL BE INSTALLED IN A MANNER THAT PREVENTS MOISTURE FROM ENTERING O
<br /> FROM FOLINDATION WALI.S OR TO AN APPROVED DR,4INAGE SYSTEM. THE WALL AND ROOF THROUGH JOINTS IN COPINGS, THROl1GH MOISTLIRE PERMEABLE U .
<br /> MATERIALS AND AT INTERSECTIONS WITH PARAPET WALLS AND OTHER PENETRATIONS '�
<br /> THROUGH THE ROOF PLANE. �
<br /> CHAPTER 8 �v�, �
<br /> ROOF-CEILING CONSTRUCTION R903.2. I LOCATIONS. �j �
<br /> FLASHINGS SHALL BE INSTALLED AT WALL AND ROOF INTERSECTIONS, WHEREVER � �
<br /> THERE IS A CHANGE W ROOF SLOPE OR DIRECTION AND AROl1ND ROOF �
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<br /> R806. I VENT►LATION REQUIRED. OPENINGS. WHERE FLASHING IS OF METAL, THE METAL SHALL BE CORROSION � '� �
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<br /> ENCLOSED ATTICS AND ENCLOSED RAFTER SPACES FORMED WHERE CEILINGS ARE APPLIED RESISTANT WITH A THICKNESS OF NOT LESS THAN 0.019 INCH(0.5 MM) (NO. 26 � � �s �
<br /> DIRECTLY TO THE LINDERSIDE OF ROOF RAFTERS SHALL HAVE CROSS VENTILATION FOR GALVANIZED SHEE�. '� � _
<br /> EACH SEPARATE SPACE BY VENTILATING OPENINGS PROTECTED AGAINST THE ENTR,4NCE OF � �
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<br /> RAIN OR SNOW. VENTI�ATING OPENINGS SHALL BE PROVIDED WITH CORROSION-RESISTANT R903.3 COPING. � � �
<br /> WIRE MESH, WITH I/8 INCH(3.2 MM)MINIMUM TO % INCH(6 MM)MAXIMIIM OPENINGS pARAPET WALLS SHALL BE PROPERLY COPED WITH NONCOMBUSTIBLE, WEATHERPROOF �v II
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<br /> MA7ERIALS OF A WIDTH NO LESS THAN THE THICKNESS OF THE PARAPET WALL. � �Q � ,
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<br /> R806.� MINtMUM AREA. � � �
<br /> THE TOTAL NET FREE VENTILATING AREA SHALL NOT BE LESS THAN I TO 150 OF THE AREA R903.4 ROOF DRAtNAGE. � � �
<br /> , OF THE SPACE VENTILATED EXCEPT THAT THE TOTAL AREA IS PERM►TTED TO BE REDLICED IINLESS ROOFS ARE SLOPED TO DRAIN OVER ROOF EDGES, ROOF DRAINS SHALL BE ;
<br /> INSTALLED AT EACH LOW POINT OF THE ROOF. WHERE REQUIRED FOR ROOF DRAINAGE, �:� .
<br /> TO I TO 300, PROVIDED AT LEAST 50 PERCENT AND NOT MORE THAN SO PERCENT OF THE `�j m . ,
<br /> REG?111RED VENTILATING AREA IS PROVIDED BY VENTILATORS LOCATED IN THE UPPER SCUPPERS SHALL BE PLACED LEVEL WITH THE ROOf SURFACE IN A WALL OR PARAPET. THE N k
<br /> PORTION OF THE SPACE TO BE VENTILATED A7�EAST 3 FEET(914 MM)ABOVE EAVE OR SCUPPER SHALL BE LOCATED AS DETERMINED BY THE ROOF SLOPE AND CONTRIBIITING �►� �
<br /> CORNICE VENTS W1TH THE BALANCE OF THE REQLIIRED VENTIl.ATION PROVIDED BY EAVE ROOF AREA. � �`+ �
<br /> OR CORNICE VENTS.AS AN ALTERNATIVE, THE NET FREE CROSS-VENTILATION AREA MAY BE � v
<br /> REDUCED TO I TO 300 WHEN A VAPOR BARRIER HAVING A TRANSMISSION RATE NOT O �-�„
<br /> EXCEEDING i PERM (57.4 MG/S � M2PA) IS 1NSTALLED ON THE WARM SIDE OF THE CEILING. R9O3.4. I OVERFLOW DRAINS AND SCUPPERS. p� (� .
<br /> WHERE ROOF DRAINS ARE REQUIRED, OVERFLOW DRAINS HAVING THE SAME SIZE v
<br /> AS THE ROOF DRAINS SHALL BE INSTALLED WITH THE INLET FLOW LINE LOCATED 2 � �
<br /> INCHES(5 I MM)ABOVE THE LOW POINT OF THE ROOF, OR OVERFLOW SCLIPPERS O
<br /> HAVWG THREE TIMES THE SIZE OF THE ROOF DRAINS AND HAVING A MINIMIIM `
<br /> R806.3 VENT CLEARANCE. OPENING HEIGHT OF 4 INCHES(102 MM)SHALL BE INSTALLED IN THE ADJACENT � `:� �'
<br /> PARAPET WALLS WITH THE INLET FLOW LOCATED 2 INCHES(5 I MM)ABOVE THE � ` �
<br /> WHERE EAVE OR CORNICE VENTS ARE INSTALLED, INSULATION SHALL NOT BLOCK THE FREE LOW POINT OF THE ROOF SERVED. THE INSTALLATION AND SIZING OF OVERFLOW �
<br /> FLOW OF AIR. A MtNIMLIM OF A I-INCH(25 MM) SPACE SHALL BE PROVIDED BETWEEN THE DRAINS, LEADERS AND CONDUCTORS SHALL COMPLY WITH THE INTERNATIONAL
<br /> INSLILATION AND THE ROOF SHEATHING AND AT THE LOCATION OF THE VENT. PLUMBING CODE. � .
<br /> OVERFIOW DRAINS SHALL DISCHARGE TO AN APPROVED LOCATION AND SHALL �
<br /> NOT BE CONNECTED TO ROOF DRAIN LINES. w ,
<br /> R807. I ATTIC ACCESS.
<br /> IN Bl11LDiNGS WITH COMBLISTIBLE CEILING OR ROOF CONSTRUCTION, AN ATTIC ACCESS Project Site:
<br /> OPENING SHALL BE PROVIDED TO ATTIC AREAS THAT EXCEED 30 SQUARE FEET(2.S M2) 6623 Highland Drive �
<br /> AND HAVE A VERTICAL HEIGHT OF 30 INCHES(762 MM) OR GREATER. THE ROUGH-FRAMED Everett, WA 98203 '�' ��
<br /> OPENING SHALL NOT BE l.ESS THAN 22 INCHES BY 30 INCHES(559 MM BY 762 MM)AND ` -
<br /> SHALL BE LOCATED IN A HALLWAY OR OTHER READILY ACCESSIBLE LOCATION. A 30-INCH Building Department:
<br /> (762 MM)MINIMLIM LINOBSTRUCTED HEADROOM IN THE ATTIC SPACE SHALL BE PROVIDED City of Everett :
<br /> AT SOME POINT ABOVE THE ACCESS OPENING. SEE SECTION M I 305.I.3 FOR ACCESS ,
<br /> REQUIREMENTS WHERE MECHANICAL EQUIPMENT IS LOCATED IN ATTICS. Building Code:
<br /> I.R.C. 201�
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<br /> RSOB. I COMBUSTIBLE INSULATION. E:
<br /> COMBCISTIBLE INSLILATION SHALL BE SEPARATED A MINIMIIM OF 3 INCHES(76 MM) FROM `'�'�
<br /> RECESSED LIGHTING FIXTLIRES, FAN MOTORS AND OTHER HEAT-PRODLICING DEVICES. "�� ' -
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<br /> EXCEPT►ON: WHEN HEAT-PRODLICING DEVICES ARE LISTED FOR LESSER CLEARANCES, � �1
<br /> COMBCISTIBLE INSLILATION COMPl.Y1NG WITH THE LISTING REQl11REMENTS SHALL BE ��
<br /> SEPARATED IN ACCORDANCE WITH THE CONDITIONS STIPLILATED IN THE LISTING. .
<br /> RECESSED LIGHTING FfXTIIRES INSTALLED IN THE BUILDING THERMAL ENVELOPE SHALL MEET Project Compass
<br /> THE REQLIIREMENTS OF SECTION N 1 I01.3.
<br /> Designer: Vernon �
<br /> March 24, ,2016
<br /> lient:
<br /> R806.4 CONDITIONED ATTIC ASSEMBLIES. Mr� Mrs Griffin �=
<br /> LINVENTED CONDITIONED ATT1C ASSEMBLIES(SPACES BETWEEN THE CEILING JOISTS OF THE June S, 20I 6 �b` "�
<br /> 70P STORYAND THE ROOF RAFTERS)ARE PERMITTED UNDER THE FOLLOWING CONDITIONS: �
<br /> I. NO INTERIOR VAPOR RETARDERS ARE INSTALLED ON THE CEILING SIDE (ATTIC Drafter: Vernon
<br /> FLOOR) OF THE LINVENTED ATTIC ASSEMBLY. June 30, 20 I 6
<br /> 2. AN AIR-IMPERMEABLE INSULATION IS APPLIED IN DIRECT CONTACT TO THE Design Issued
<br /> LINDERSIDE/INTERIOR OF THE STRUCTURAL RDOF DECK. "AIR-IMPERMEABLE"SHALL BE June 14, �016
<br /> DEFINED BY ASTM E 283.
<br /> EXCEPTION: IN ZONES 28 AND 3B, INSULATION IS NOT REQUIRED TD BE AIR IMPERMEABLE. Bid Release
<br /> 3. IN THE WARM HUMID LOCATIDNS AS DEFINED IN SECTION N 1101.2.I:
<br /> 3.I. FOR ASPHALT ROOFING SHINGLES:A I-PERM (5.7 ' 10-I I KG/S x M2 x PA) OR
<br /> LESS VAPOR RETARDER (DETERMWED USING PROCEDl1RE 8 OF ASTM E 96) IS PLACED TO Construction Issue
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<br /> THE EXTERIOR OF THE STRLICTIIRAL ROOF DECK; THAT 1S, JUST ABOVE THE ROOF June 30, 20 I 6 �
<br /> STRLICTLIRAL SHEATHING. a�
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<br /> 3.�. FOR WOOD SHINGLES AND SHAKES:A MINIMUM CONTINUOLIS %-INCH (6 MM) Revision - I
<br /> VENTED AIR SPACE SEPARATES THE SHINGLES/SHAKES AND THE ROOFING FELT PLACED OVER
<br /> THE STRUCTURAL SHEATHING. �
<br /> 4. IN ZONES 3 THROLIGH S AS DEFINED IN SECTION N I I 01.2, SUFFICIENT Project Number �
<br /> INSLILATION IS INSTALLED TO MAINTAIN THE MONTH�Y AVERAGE TEMPERATLIRE OF THE 2 0 21 6
<br /> CONDENSING SLIRFACE ABOVE 45°F(7°C). THE CONDENSING SURFACE IS DEFINED AS EITHER
<br /> THE STRUCTURAL ROOF DECK OR THE INTERIOR SURFACE OF AN AIR-IMPERMEABLE •
<br /> INSLILATION APPUED IN DIRECT CONTACT WITH THE UNDERSIDE/INTERIOR OF THE `ll1 R'ghts Reser`'ed.
<br /> All contents within this sheet is
<br /> STRUCTLIRAL ROOF DECK. "AIR-IMPERMEABLE"IS QLIANTITATIVELY DEFINED BY ASTM E 283. the sole property of Creative
<br /> FOR CALCIILATION PURPOSES, AN INTERIOR TEMPERATl1RE OF 68°F(20°C) IS ASSUMED. THE Com£ort.Reproduction by any
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<br /> EXTERIOR TEMPERATLIRE IS ASSUMED TO BE THE MONTHLY AVERAGE OUTSIDE means eirher in whole or in part
<br /> TEMPERATLIRE. requires written permission by
<br /> Creauve Comfort. • ,
<br /> Sheet Number
<br /> A_-V • /
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