ALLIED HOME INSPECTION SERVICES APPENDIX A

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1 APPENDIX A SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: E 3502 PAGE 437 ELECTRICAL SERVICE AND RATING TABLE E MINIMUM SERVICE LOAD CALCULATION LOADS AND PROCEDURE 3-VOLT-AMPERES PER SQUARE FOOT OF FLOOR AREA FOR GENERAL LIGHTING AND CONVENIENCE RECEPTACLE OUTLETS. PLUS 1,500 VOLT-AMPERES X TOTAL NUMBER OF 20 AMPERE-RATED SMALL APPLIANCE AND LAUNDRY CIRCUITS PLUS THE NAMEPLATE VOLT-AMPERE RATING OF ALL FASTENED IN-PLACE PERMANENTLY CONNECTED OR DEDICATED CIRCUIT-SUPPLIED APPLIANCES SUCH A RANGES, OVENS, COOKING UNITS, CLOTHES DRYERS AND WATER HEATERS. APPLY THE FOLLOWING DEMAND FACTORS TO THE ABOVE SUBTOTAL: THE MINIMUM SUB-TOTAL FOR THE LOADS ABOVE SHALL BE 100 PERCENT OF THE FIRST 10,000 VOLT-AMPERES OF THE SUM OF THE ABOVE LOADS PLUS 40 PERCENT OF ANY PORTION OF THE SUM THAT IS IN EXCESS OF 10,000 VOLT-AMPERES. PLUS THE LARGEST OF THE FOLLOWING: NAMEPLATE RATING (S) OF AIR-CONDITIONING AND COOLING EQUIPMENT INCLUDING HEAT PUMP COMPRESSORS. NAMEPLATE RATING OF THE ELECTRIC THERMAL STORAGE AND OTHER HEATING SYSTEMS WHERE THE USUAL LOAD IS EXPECTED TO BE CONTINUOUS AT THE FULL NAMEPLATE VALUE. SYSTEMS QUALIFYING UNDER THIS SELECTION SHALL NOT BE FIGURED UNDER ANY OTHER CATEGORY IN THIS TABLE. SIXTY-FIVE PERCENT OF NAMEPLATE RATING OF CENTRAL ELECTRIC SPACE-HEATING EQUIPMENT, INCLUDING INTEGRAL SUPPLEMENTAL HEATING FOR HEAT PUMP SYSTEMS. SIXTY-FIVE PERCENT OF NAMEPLATE RATING (S) OF ELECTRIC SPACE- HEATING UNITS IF LESS THAN FOUR SEPARATELY CONTROLLED UNITS. FORTY PERCENT OF NAMEPLATE RATING (S) OF ELECTRIC SPACE-HEATING UNITS OF FOUR OR MORE SEPARATELY CONTROLLED UNITS. THE MINIMUM TOTAL LOAD IN AMPERES SHALL BE THE VOLT-AMPERE SUM CALCULATED ABOVE DIVIDED BY 240 VOLTS.

2 APPENDIX A-2 SOURCE: NATIONAL ELECTRICAL CODE (NEC 2002 EDITION) SECTION: SECTION (A) (5) PAGE SECTION (A) PAGE SYSTEM GROUNDING CONNECTIONS (A) (5) LOAD-SIDE GROUNDING CONNECTIONS A GROUNDING CONNECTION SHALL NOT BE MADE TO ANY GROUNDED CIRCUIT CONDUCTOR ON THE LOAD SIDE OF THE SERVICE DISCONNECTING MEANS EXCEPT AS OTHERWISE PERMITTED IN THIS ARTICLE. FPN: SEE (A) FOR SEPARATELY DERIVED SYSTEMS FOR CONNECTIONS AT SEPARATE BUILDINGS OR STRUCTURES, AND FOR USE OF THE GROUNDED CIRCUIT CONDUCTOR FOR GROUNDING EQUIPMENT (A) GROUNDING SEPARATELY DERIVED ALTERNATING - CURRENT SYSTEMS A. GROUNDED SYSTEMS A SEPARATELY DERIVED AC SYSTEM THAT IS GROUNDED SHALL COMPLY WITH (A) (1) THROUGH (6) EXCEPTION: HIGH-IMPEDANCE GROUNDED NEUTRAL SYSTEM GROUNDING CONNECTION REQUIREMENTS SHALL BE REQUIRED TO COMPLY WITH (A) (1) AND (2) AND SHALL BE MADE AS SPECIFIED IN AND (1) BONDING JUMPER A BONDING JUMPER IN COMPLIANCE WITH (A) THROUGH (D) THAT IS SIZED FOR THE DERIVED PHASE CONDUCTORS SHALL BE USED TO CONNECT THE EQUIPMENT GROUNDING CONDUCTORS OF THE SEPARATELY DERIVED SYSTEM TO THE GROUNDED CONDUCTOR. EXCEPT, AS PERMITTED BY (A) (3), THIS CONNECTION SHALL BE MADE AT ANY POINT ON THE SEPARATELY DERIVED SYSTEM FROM THE SOURCE TO THE FIRST SYSTEM DISCONNECTING MEANS OR OVERCURRENT DEVICE, OR IT SHALL BE MADE AT THE SOURCE OF A SEPARATELY DERIVED SYSTEM THAT HAS NO DISCONNECTING MEANS OR OVERCURRENT DEVICES. THE POINT OF CONNECTION SHALL BE THE SAME AS THE GROUNDING ELECTRODE AS REQUIRED IN (A) (2). EXCEPTION NO. 1: A BONDING JUMPER AT BOTH THE SOURCE AND THE FIRST DISCONNECTING MEANS SHALL BE PERMITTED WHERE DOING SO DOES NOT ESTABLISH A PARALLEL PATH FOR THE GROUNDED CIRCUIT CONDUCTOR. WHERE A GROUNDED CONDUCTOR IS USED IN THIS MANNER, IT SHALL NOT BE SMALLER THAT THE SIZE SPECIFIED FOR THE BONDING JUMPER BUT SHALL BE REQUIRED TO BE LARGER THAN THE UNGROUNDED CONDUCTOR (S). FRO THE PURPOSES OF THIS EXCEPTION, CONNECTION THROUGH THE EARTH SHALL NOT BE CONSIDERED AS PROVIDING A PARALLEL PATH. EXCEPTION NO 2: THE SIZE OF THE BONDING JUMPER FOR A SYSTEM THAT SUPPLIES A CLASS 1, CLASS 2, OR CLASS 3 CIRCUIT, AND IS DERIVED FROM A TRANSFORMER RATED NOT MORE THAN 1000 VOLT-AMPERES, SHALL NOT BE SMALLER THAN 14 AWG COPPER OR 12 AWG ALUMINUM.

3 APPENDIX A-3 SOURCE: NATIONAL ELECTRICAL CODE (NEC 2002 EDITION) SECTION: SECTION (A) PAGE (2) GROUNDED ELECTRODE CONDUCTOR SYSTEM GROUNDING CONNECTIONS THE GROUNDING ELECTRODE CONDUCTOR SHALL BE INSTALLED IN ACCORDANCE WITH (A OR (B). WHERE TAPS ARE CONNECTED TO A COMMON GROUNDING ELECTRODE, THE INSTALLATION SHALL COMPLY WITH 250.3O (A) (3). (A) SINGLE SEPARATELY DERIVED SYSTEMS A GROUNDING ELECTRODE CONDUCTOR FOR A SINGLE SEPARATELY DERIVED SYSTEM SHALL BE SIZED IN ACCORDANCE WITH FOR THE DERIVED PHASE CONDUCTORS AND SHALL BE USED TO CONNECT THE GROUNDED CONDUCTOR OF THE DERIVED SYSTEM TO THE GROUNDING ELECTRODE AS SPECIFIED IN (A) (4). EXCEPT AS PERMITTED BY (A) (3) OR (A) (4), THIS CONNECTION SHALL BE MADE AT THE SAME POINT ON THE SEPARATELY DERIVED SYSTEM WHERE THE BONDING JUMPER IS INSTALLED. EXCEPTION: A GROUNDING ELECTRODE CONDUCTOR SHALL NOT BE REQUIRED FOR A SYSTEM THAT SUPPLIES A CLASS 1, CLASS 2, OR CLASS 3 CIRCUIT AND IS DERIVED FROM A TRANSFORMER RATED NOT LESS THAN 1000 VOLT-AMPERES, PROVIDED THE SYSTEM GROUNDING CONDUCTOR IS BONDED TO THE TRANSFORMER FRAME OR ENCLOSURE BY A JUMPER SIZED IN ACCORDANCE WITH (A) (1), EXCEPTION NO. 2, AND THE TRANSFORMER FRAME OR ENCLOSURE IS GROUNDED BY ONE OF THE MEANS SPECIFIED IN (B) MULTIPLE SEPARATELY DERIVED SYSTEMS. WHERE MORE THAN ONE SEPARATELY DERIVED SYSTEM IS CONNECTED TO A COMMON GROUNDING ELECTRODE CONDUCTOR AS PROVIDED IN A) (3), THE COMMON GROUNDING ELECTRODE SHALL BE SIZED IN ACCORDANCE WITH , BASED ON THE TOTAL AREA OF THE LARGEST DERIVED PHASE CONDUCTOR FROM EACH SEPARATELY DERIVED SYSTEM.

4 APPENDIX A-4 SOURCE: NATIONAL ELECTRICAL CODE (NEC 2002 EDITION) SECTION: SECTION (A) PAGE & SYSTEM GROUNDING CONNECTIONS 3. GROUNDING ELECTRODE CONDUCTOR TAPS. IT SHALL BE PERMISSIBLE TO CONNECT TAPS FROM A SEPARATELY DERIVED SYSTEM TO A COMMON GROUNDING ELECTRODE CONDUCTOR. EACH TAP CONDUCTOR SHALL CONNECT THE GROUNDED CONDUCTOR OF THE SEPARATELY DERIVED SYSTEM TO THE COMMON GROUNDING ELECTRODE CONDUCTOR. (a) TAP CONDUCTOR SIZE. EACH TAP CONDUCTOR SHALL BE SIZED IN ACCORDANCE WITH FOR THE DERIVED PHASE CONDUCTORS OF THE SEPARATELY DERIVED SYSTEM IT SERVES. (b) CONNECTIONS. ALL CONNECTIONS SHALL BE MADE AT AN ACCESSIBLE LOCATION BY AN IRREVERSIBLE COMPRESSION CONNECTION LISTED FOR THE PURPOSE, LISTED CONNECTIONS TO COPPER BUSBARS NOT LESS THAN 6 mm X 50 mm (1/4 in. X 2 in.), OR BY THE EXOTHERMIC WELDING PROCESS. THE TAP CONDUCTORS SHALL BE CONNECTED TO THE COMMON GROUNDING ELECTRODE CONDUCTOR AS SPECIFIED IN (A)(2)(b) IN SUCH A MANNER THAT THE COMMON GROUNDING ELECTRODE CONDUCTOR REMAINS WITHOUT A SPLICE OR JOINT. (c) INSTALLATION. THE COMMODE GROUNDING ELECTRODE CONDUCTOR AND THE TAPS TO EACH SEPARATELY DERIVED SYSTEM SHALL COMPLY WITH (A), (B), (C) AND (E). (d) BONDING. WHERE EXPOSED STRUCTURAL STEEL THAT IS INTERCONNECTED TO FORM THE BUILDING FRAME OR INTERIOR METAL PIPING EXISTS IN THE AREA SERVED BY THE SEPARATELY DERIVED SYSTEM, IT SHALL BE BONDED TO THE GROUNDING ELECTRODE IN ACCORDANCE WITH GROUNDING ELECTRODE PREFERABLY IN THE SAME AREA AS THE GROUNDING ELECTRODE CONDUCTOR CONNECTION TO THE SYSTEM. THE GROUNDING ELECTRODE SHALL BE THE NEAREST ONE OF THE FOLLOWING: (1) AN EFFECTIVELY GROUNDED STRUCTURAL METAL MEMBER OF THE STRUCTURE (2) AN EFFECTIVELY GROUNDED METAL WATER PIPE WITHIN 1.5 mm (5 ft) FROM THE POINT OF ENTRANCE INTO THE BUILDING EXCEPTION: IN INDUSTRIAL AND COMMERCIAL BUILDINGS, WHERE CONDITIONS OF MAINTENANCE AND SUPERVISION ENSURE THAT ONLY QUALIFIED PERSONS SERVICE THE INSTALLATION AND THE ENTIRE LENGTH OF THE INTERIOR METAL WATER PIPE THAT IS BEING USED FOR THE GROUNDING ELECTRODE IS EXPOSED, THE CONNECTION SHALL BE PERMITTED AT ANY POINT ON THE WATER PIPE SYSTEM. (3) OTHER ELECTRODES AS SPECIFIED IN WHERE THE ELECTRODES SPECIFIED BY (A)(4)(1) OR (A)(4)(2) ARE NOT AVAILABLE.

5 APPENDIX A-5 SOURCE: NATIONAL ELECTRICAL CODE 2002 ARTICLE 220 BRANCH-CIRCUIT, FEEDER, AND SERVICE CALCULATIONS PAGES 70-61TO PAGES ARTICLE 225 OUTSIDE BRANCH CIRCUITS AND FEEDERS PAGES TO SINGLE FAMILY DWELLING LOAD CALCULATION FORM NO. NO. OF WATTS SQ., FT, LIVING AREA X 3 WATTS EACH SMALL APPLIANCE CIRCUITS X 1500 WATTS EACH 220 V. DRYER CIRCUITS X 5000 WATTS EACH 220 V RANGE / OVEN CIRCUITS X 8000 WATTS EACH 220 V OVEN CIRCUIT X 4,000 WATTS EACH 220 V COOKTOP CIRCUIT X 4500 WATTS EACH 220 V. WATER HEATER CIRCUIT X 3,000 WATTS EA. 110 V. LAUNDRY CIRCUITS X 1500 WATTS EACH. 110 V. DISHWASHER CIRCUITS X 1500 WATTS EA. 110 V. GARBAGE DISPOSAL CIRCUITS X 750 WATTS EA., 110 V. TRASH COMPACTOR CIRCUITS X 1,500 WATTS EA. OTHER USE CIRCUITS X 690 WATTS EA. FIRST 10, % REMAINING 40 % EQUALS TONS OF 100 % TIMES 1720 WATTS EQUALS (USE 1720 WATTS PER TON FOR A/C LOAD) TOTAL WATTS DIVIDED BY 240 VOLTS EQUALS TOTAL AMP AMOUNT NEEDED. NOTE: TOTAL ELECTRICAL SERVICE SHOULD MEET OR EXCEED THE TOTAL AMP AMOUNT.

6 APPENDIX B-1 SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: PAGE 57 R DRAINAGE DRAINAGE SURFACE DRAINAGE SHALL BE DIVERTED TO A STORM SEWER CONVEYANCE OR OTHER APPROVED POINT OF COLLECTION SO AS TO NOT CREATE A HAZARD. LOTS SHALL BE GRADED SO AS TO DRAIN SURFACE WATER AWAY FROM THE FOUNDATION WALLS. THE GRADE AWAY FROM THE FOUNDATION SHALL FALL A MINIMUM OF 6 INCHES (152mm) WITHIN THE FIRST 10 FEET (3,048mm). EXCEPTION: WHERE LOT LINES, WALLS, SLOPES, OR OTHER PHYSICAL BARRIERS PROHIBIT 6 INCHES (152mm) OF FALL WITHIN 6 FEET (3048mm), DRAINS OR SWALES SHALL BE PROVIDED TO ENSURE DRAINAGE AWAY FROM THE STRUCTURE.

7 APPENDIX B-2 SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: SECTION R AND R PAGE 204 SECTION R PAGE 208 EXTERIOR COVERING SECTION R 703 R GENERAL EXTERIOR WALLS SHALL PROVIDE THE BUILDING WITH A WEATHER- RESISTANT EXTERIOR WALL ENVELOPE. THE EXTERIOR WALL ENVELOPE SHALL INCLUDE FLASHING AS DESCRIBED IN SECTION R THE EXTERIOR WALL ENVELOPE SHALL BE DESIGNED AND CONSTRUCTED IN SUCH A MANNER AS TO PREVENT THE ACCUMULATION OF WATER WITHIN THE WALL ASSEMBLY BY PROVIDING A WATER-RESISTIVE BARRIER BEHIND THE EXTERIOR VENEER AS REQUIRED BY SECTION R R WEATHER-RESISTANT SHEATHING PAPER ASPHALT-SATURATED FELT FREE FROM HOLES AND BREAKS, WEIGHING NOT LESS THAN 14 POUNDS PER 100 SQ. FT. (0.683 kg/m2) AND COMPLYING WITH ASTM D 226 OR OTHER APPROVED WEATHER- RESISTANT MATERIAL SHALL BE APPLIED OVER STUDS OR SHEETING OF ALL EXTERIOR WALLS AS REQUIRED BY TABLE R SUCH FELT OR MATERIAL SHALL BE APPLIED HORIZONTALLY, WITH THE UPPER LAYER LAPPED OVER THE LOWER LAYER NOT LESS THAN 2 INCHES (51mm). WHERE JOISTS OCCUR, FELT SHALL BE LAPPED NOT LESS THAN 6 INCHES (152 mm) R FLASHING APPROVED CORROSION-RESISTANT FLASHING SHALL BE PROVIDED IN THE EXTERIOR WALL ENVELOPE IN SUCH A MANNER AS TO PREVENT ENTRY OF WATER INTO THE WALL CAVITY OR PENETRATION OF WATER TO THE BUILDING STRUCTURAL FRAMING COMPONENTS. THE FLASHING SHALL EXTEND TO THE SURFACE OF THE EXTERIOR WALL FINISH AND SHALL BE INSTALLED TO PREVENT WATER FROM REENTERING THE EXTERIOR WALL ENVELOPE. APPROVED CORROSION-RESISTANT FLASHING SHALL IN INSTALLED AT THE FOLLOWING LOCATIONS: 1 AT TOP OF ALL EXTERIOR WINDOW AND DOOR OPENINGS IN SUCH A MANNER AS TO BE LEAK PROOF, EXCEPT THAT SELF-FLASHING WINDOWS HAVING A CONTINUOUS LAP OF NOT LESS THAT 1 1/8" (28mm) OVER THE SHEATHING MATERIAL AROUND THE PERIMETER OF THE OPENING, INCLUDING CORNERS, DO NOT REQUIRE ADDITIONAL FLASHING; JAMB FLASHING MAY ALSO BE OMITTED WHEN SPECIFICALLY APPROVED BY THE BUILDING OFFICIAL 2 AT THE INTERSECTION OF CHIMNEYS OR OTHER MASONRY CONSTRUCTION WITH FRAME OR STUCCO WALLS, WITH PROJECTING LIPS ON BOTH SIDES UNDER STUCCO COPINGS. 3 UNDER AND AT THE ENDS OF MASONRY, WOOD, OR METAL COPINGS AND SILLS 4 CONTINUOUSLY ABOVE ALL PROJECTING WOOD TRIM 5 WHERE EXTERIOR PORCHES, DECKS, OR STAIRS ATTACH T A WALL OR FLOOR ASSEMBLY OF WOOD-FRAME CONSTRUCTION. 6 AT WALL AND ROOF INTERSECTIONS. 7 AT BUILT-IN GUTTERS.

8 APPENDIX C SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: M PAGE 289 APPLIANCES IN ATTICS. GENERAL MECHANICAL SYSTEM REQUIREMENTS APPLIANCE ACCESS ATTICS CONTAINING APPLIANCES REQUIRING ACCESS SHALL BE PROVIDED WITH AN OPENING AND A CLEAR AND UNOBSTRUCTED PASSAGEWAY LARGE ENOUGH TO ALLOW REMOVAL OF THE LARGEST APPLIANCE, BUT NOT LESS THAN 30 INCHES (762 mm) HIGH AND 22 INCHES ( 559 mm) WIDE AND NOT MORE THAN 20 FEET ( (6096 mm) IN LENGTH WHEN MEASURED ALONG THE CENTERLINE OF THE PASSAGEWAY FROM THE OPENING TO THE APPLIANCE. THE PASSAGEWAY SHALL HAVE CONTINUOUS SOLID FLOORING IN ACCORDANCE WITH CHAPTER 5 NOT LESS THAN 24 INCHES (610 mm) WIDE. A LEVEL SERVICE SPACE AT LEAST 30 INCHES (762 mm) DEEP AND 30 INCHES (762 MM) WIDE SHALL BE PRESENT ALONG ALL SIDES OF THE APPLIANCE WHERE ACCESS IS REQUIRED. THE CLEAR ACCESS OPENING DIMENSIONS SHALL BE A MINIMUM OF 20 INCHES BY 30 INCHES (508 mm X 762 mm) WHERE SUCH DIMENSIONS ARE LARGE ENOUGH TO ALLOW REMOVAL OF THE LARGEST APPLIANCE. EXCEPTION: THE PASSAGEWAY AND LEVEL SERVICE SPACE ARE NOT REQUIRED WHERE THE APPLIANCE IS CAPABLE OF BEING SERVICED AND REMOVED THROUGH THE REQUIRED OPENING. ELECTRICAL REQUIREMENTS SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: M PAGE 290 A LIGHTING FIXTURE CONTROLLED BY A SWITCH LOCATED AT THE REQUIRED PASSAGEWAY OPENING AND A RECEPTACLE OUTLET SHALL BE PROVIDED AT OR NEAR THE APPLIANCE LOCATION IN ACCORDANCE WITH CHAPTER 38

9 APPENDIX CC-1 SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: M PAGE 297 M CONDENSATE DISPOSAL CONDENSATE FROM ALL COOLING COILS OR EVAPORATORS SHALL BE CONVEYED FROM THE DRAIN PAN OUTLET TO AN APPROVED PLACE OF DISPOSAL. CONDENSATE SHALL NOT DISCHARGE INTO A STREET, ALLEY, OR OTHER AREA SO AS TO CAUSE A NUISANCE. M AUXILIARY AND SECONDARY DRAIN SYSTEMS IN ADDITION TO THE REQUIREMENTS OF SECTION M , A SECONDARY DRAIN OR AUXILIARY DRAIN PAN SHALL BE REQUIRED FOR EACH COOLING OR EVAPORATOR COIL WHERE DAMAGE TO ANY BUILDING COMPONENTS WILL OCCUR AS A RESULT OF OVERFLOW FROM THE EQUIPMENT DRAIN PAN OR STOPPAGE IN THE CONDENSATE DRAIN PIPING. DRAIN PIPING SHALL BE A MINIMUM OF 3/4 INCH (19.1 mm) NOMINAL PIPE SIZE ONE OF THE FOLLOWING METHODS SHALL BE USED: 1. AN AUXILIARY DRAIN PAN WITH A SEPARATE DRAIN SHALL BE PROVIDED UNDER THE COILS ON WHICH CONDENSATION WILL OCCUR. THE AUXILIARY PAN DRAIN SHALL DISCHARGE TO A CONSPICUOUS POINT OF DISPOSAL TO ALERT OCCUPANTS IN THE EVENT OF A STOPPAGE OF THE PRIMARY DRAIN. THE PAN SHALL BE A MINIMUM DEPTH OF 1.5 INCHES (38 mm), SHALL NOT BE LESS THAN 3 INCHES (76 mm) LARGER THAN THE UNIT OR THE COIL DIMENSIONS IN WIDTH AND LENGTH AND SHALL BE CONSTRUCTED OF CORROSION RESISTANT MATERIAL. METALLIC PANS SHALL HAVE A MINIMUM THICKNESS OF NOT LESS THAN INCH (0.7 mm) GALVANIZED SHEET METAL.NONMETALLIC PANS SHALL HAVE A MINIMUM THICKNESS OF NOT LESS THAN INCH (1.6mm). 2. A SEPARATE OVERFLOW DRAIN LINE SHALL BE CONNECTED TO THE DRAIN PAN PROVIDED WITH THE EQUIPMENT. SUCH OVERFLOW DRAIN SHALL DISCHARGE TO A CONSPICUOUS POINT OF DISPOSAL TO ALERT OCCUPANTS IN THE EVENT OF A STOPPAGE OF THE PRIMARY DRAIN. THE OVERFLOW DRAIN LINE SHALL CONNECT TO THE DRAIN PAN AT A HIGHER LEVEL THAN THE PRIMARY DRAIN CONNECTION. 3. AN AUXILIARY DRAIN PAN WITHOUT A SEPARATE DRAIN LINE SHALL BE PROVIDED UNDER THE COILS ON WHICH CONDENSATE WILL OCCUR. SUCH PAN SHALL BE EQUIPPED WITH A WATER LEVEL DETECTION DEVICE THAT WILL SHUT OFF THE EQUIPMENT SERVED PRIOR TO OVERFLOW OF THE PAN. THE AUXILIARY DRAIN PAN SHALL BE CONSTRUCTED IN ACCORDANCE WITH ITEM 1 OF THIS SECTION.

10 APPENDIX CC-2 (FLOAT SWITCH) SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2009 SECTION: M PAGE 486 M PAGE 485 M WATER-LEVEL MONITORING DEVICES ON DOWN-FLOW UNITS AND ALL OTHER COILS THAT HAVE NO SECONDARY DRAIN OR PROVISIONS TO INSTALL A SECONDARY OR AUXILIARY DRAIN PAN, A WATER-LEVELING MONITORING DEVICE SHALL BE INSTALLED INSIDE THE PRIMARY DRAIN PAN. THIS DEVICE SHALL SHUT OFF EQUIPMENT SERVED IN THE EVENT THAT THE PRIMARY DRAIN BECOMES RESTRICTED. DEVICES SHALL NOT BE INSTALLED IN THE DRAIN LINE. M DRAIN PIPE MATERIALS AND SIZES COMPONENTS OF THE CONDENSATE DISPOSAL SYSTEM SHALL BE CAST IRON, GALVANIZED STEEL, COPPER, POLYBUTELENE, POLYETHYLENE, ABS, CPVC, OR PVC PIPE OR TUBING. ALL COMPONENTS SHALL BE SELECTED FOR THE PRESSURE AND TEMPERATURE RATING OF THE INSTALLATION. JOINTS AND CONNECTIONS SHALL BE MADE IN ACCORDANCE WITH THE MATERIALS SPECIFIED IN CHAPTER 30. CONDENSATE WASTE AND DRAIN LINE SIZE SHALL NOT BE LESS THAN 3/4 INCH (19 mm) INTERNAL DIAMETER AND SHALL NOT DECREASE IN SIZE FROM THE DRAIN PAN CONNECTION TO THE PLACE OF CONDENSATE DISPOSAL. WHERE THE DRAIN PIPES FROM MORE THAN ONE UNIT ARE MANIFOLDED TOGETHER FOR CONDENSATE DRAINAGE, THE PIPE OR TUBING SHALL BE SIZED IN ACCORDANCE WITH AN APPROVED METHOD. M 1411,3,1,4 AUXILLARY & SECONDARY DRAIN SYSTEMS A WATER LEVEL DETECTION DEVICE CONFORMING TO UL 508 SHALL BE INSTALLED THAT WILL SHUT OFF THE EQUIPMENT SERVED IN THE EVENT THAT THE PRIMARY DRAIN LINE IS BLOCKED. THE DEVICE SHALL BE INSTALLED IN THE PRIMARY DRAIN LINE, THE OVER\FLOW DRAIN LINE, OR THE EQUIPMENT SUPPLIED DRAIN PAN., LOCATED AT A POINT HIGHER THAN THE PRIMARY DRAIN LINE CONNECTION AND BELOW THE OVERFLOW RIM OF SUCH PAN.

11 APPENDIX D SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: P & P PAGE 396 P 2902 PAGE 395 WATER SUPPLY AND DISTRIBUTION PROTECTION OF POTABLE WATER OUTLETS ALL POTABLE WATER OPENINGS AND OUTLETS SHALL BE PROTECTED BY AN AIR GAP, ATMOSPHERIC-TYPE VACUUM BREAKER, PRESSURE-TYPE VACUUM BREAKER OR HOSE CONNECTION BACKFLOW PREVENTOR. FLUSH TANKS FLUSH TANKS SHALL BE EQUIPPED WITH AN ANTISIPHON BALL COCK CONFORMING TO ASSE/ANSI THE BALL COCK SHALL BE INSTALLED A MINIMUM OF 1 INCH (25.4 mm) ABOVE THE FULL OPENING OF THE OVERFLOW PIPE. P 2902 PROTECTION OF POTABLE WATER SUPPLY P GENERAL A POTABLE WATER SUPPLY SYSTEM SHALL BE DESIGNED AND INSTALLED IN SUCH A MANNER AS TO PREVENT CONTAMINATION FROM NONPOTABLE LIQUIDS, SOLIDS, OR GASES BEING INTRODUCED INTO THE POTABLE WATER SUPPLY. CONNECTIONS SHALL NOT BE MADE TO A POTABLE WATER SUPPLY IN A MANNER THAT COULD CONTAMINATE THE WATER SUPPLY OR PROVIDE A CROSS-CONNECTION BETWEEN THE SUPPLY AND SOURCE OF CONTAMINATION UNLESS AN APPROVED BACKFLOW PREVENTION DEVICE IS PROVIDED. CROSS-CONNECTIONS BETWEEN AN INDIVIDUAL WATER SUPPLY AND POTABLE PUBLIC WATER SUPPLY SHALL BE PROHIBITED. P HOSE CONNECTION BACKFLOW PREVENTORS HOSE CONNECTION BACKFLOW PREVENTORS SHALL CONFORM TO ASSE / ANSI THE BACKFLOW PREVENTOR SHALL BE INSTALLED ON THE DISCHARGE SIDE OF A HOSE-THREADED OUTLET. P LAWN IRRIGATION SYSTEMS THE POTABLE WATER SUPPLY TO LAWN IRRIGATION SYSTEMS SHALL BE PROTECTED AGAINST BACKFLOW BY AN ATMOSPHERIC-TYPE VACUUM BREAKER, A PRESSURE-TYPE BREAKER OR A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTOR. A VALVE SHALL NOT BE INSTALLED DOWNSTREAM FROM AN ATMOSPHERIC VACUUM BREAKER. ALL DEVICES SHALL BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S INSTALLATION INSTRUCTIONS.

12 APPENDIX DD-1-A SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: P 2801 PAGE 393 P LOCATION WATER HEATER LOCATIONS & DRAIN PANS WATER HEATERS AND STORAGE TANKS SHALL BE LOCATED AND CONNECTED SO AS TO PROVIDE ACCESS FOR OBSERVATION, MAINTENANCE, SERVICING, AND REPLACEMENT. P REQUIRED PAN WHERE WATER HEATERS OR HOT WATER STORAGE TANKS ARE INSTALLED IN LOCATIONS WHERE LEAKAGE OF THE TANKS OR CONNECTIONS WILL CAUSE DAMAGE, THE TANK OR WATER HEATER SHALL BE INSTALLED IN A GALVANIZED STEEL PAN HAVING A MINIMUM THICKNESS OF 24 GAGE (0.016 inch) (0.4 mm) OR OTHER PANS LISTED FOR SUCH USE. P PAN SIZE AND DRAIN THE PAN SHALL BE NOT LESS THAN 1.5 INCHES (38 mm) DEEP AND SHALL BE OF SUFFICIENT SIZE AND SHAPE TO RECEIVE ALL DRIPPING AND CONDENSATE FROM THE TANK OR WATER HEATER. THE PAN SHALL BE DRAINED BY AN INDIRECT WASTE PIPE HAVING A MINIMUM DIAMETER OF 1 INCH (25.4 mm) OR THE OUTLET DIAMETER OF THE RELIEF VALVE, WHICHEVER IS LARGER. P PAN DRAIN TERMINATION THE PAN DRAIN SHALL EXTEND FULL-SIZE AND TERMINATE OVER A SUITABLY LOCATED INDIRECT WASTE RECEPTOR OR SHALL EXTEND TO THE EXTERIOR SIDE OF THE BUILDING AND TERMINATE NOT LESS THAN 6 INCHES (152 mm) AND NOT MORE THAN 24 INCHES (610 mm) ABOVE THE ADJACENT GROUND SURFACE. P WATER HEATERS INSTALLED IN GARAGES WATER HEATERS HAVING AN IGNITION SOURCE SHALL BE ELEVATED SUCH THAT THE SOURCE OF IGNITION SHALL BE NOT LESS THAN 18 INCHES (457 mm) ABOVE THE GARAGE FLOOR.

13 APPENDIX DD-1-B SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: P 2803 PAGE 393 P RELIEF VALVES REQUIRED WATER HEATER RELIEF VALVES APPLIANCES AND EQUIPMENT USED FOR HEATING WATER OR STORING HOT WATER SHALL BE PROTECTED BY: 1 A SEPARATE PRESSURE-RELIEF VALVE AND A SEPARATE TEMPERATURE-RELIEF VALVE; OR 2 A COMBINATION PRESSURE-TEMPERATURE-RELIEF VALVE P RATING RELIEF VALVES SHALL A MINIMUM RATED CAPACITY FOR THE EQUIPMENT SERVED AND SHALL CONFORM TO ANSI Z P PRESSURE-RELIEF VALVES PRESSURE-RELIEF VALVES SHALL HAVE A RELIEF RATING ADEQUATE TO MEET THE PRESSURE CONDITIONS FOR THE APPLIANCES OR EQUIPMENT PROTECTED. IN TANKS, THEY SHALL BE INSTALLED DIRECTLY INTO A TANK TAPPING OR IN A WATER LINE CLOSE TO THE TANK. THEY SHALL BE SET TO OPEN AT LEAST 25 psi (172 kpa) ABOVE THE SYSTEM PRESSURE BUT NOT OVER 150 psi (1034 kpa). THE RELIEF- VALVE SETTING SHALL NOT EXCEED THE TANK'S RATED WORKING PRESSURE. P TEMPERATURE-RELIEF VALVES TEMPERATURE-RELIEF VALVES SHALL HAVE A RELIEF RATING COMPATIBLE WITH THE TEMPERATURE CONDITIONS OF THE APPLIANCES OR EQUIPMENT PROTECTED. THE VALVES SHALL BE INSTALLED SUCH THAT THE TEMPERATURE- SENSING ELEMENT MONITORS THE WATER WITHIN THE TOP 6 INCHES (152 mm) OF THE TANK. THE VALVE SHALL BE SET TO OPEN AT A MAXIMUM TEMPERATURE OF 210 DEGREES F (99 C). P COMBINATION PRESSURE / TEMPERATURE RELIEF VALVES COMBINATION PRESSURE / TEMPERATURE RELIEF VALVES SHALL COMPLY WITH ALL THE REQUIREMENTS OF SEPARATE PRESSURE AND TEMPERATURE RELIEF VALVES.

14 APPENDIX DD-1-C SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: P 2803 PAGE 393 & 394 WATER HEATER RELIEF VALVE INSTALLATION AND DISCHARGE PIPE P INSTALLATION OF RELIEF VALVES A CHECK OR SHUTOFF VALVE SHALL NOT BE INSTALLED IN THE FOLLOWING LOCATIONS: 1. BETWEEN A RELIEF VALVE AND THE TERMINATION POINT OF THE RELIEF VALVE DISCHARGE PIPE 2. BETWEEN A RELIEF VALVE AND A TANK OR 3. BETWEEN A RELIEF VALVE AND HEATING APPLIANCE OR EQUIPMENT P REQUIREMENTS OF A DISCHARGE PIPE THE OUTLET OF A PRESSURE RELIEF VALVE, TEMPERATURE RELIEF VALVE, OR COMBINATION THEREOF, SHALL NOT BE DIRECTLY CONNECTED TO THE DRAINAGE SYSTEM. THE DISCHARGE FROM THE RELIEF VALVE SHALL BE PIPED FULL SIZE SEPARATELY TO THE OUTSIDE OF THE BUILDING OR TO AN INDIRECT WASTE RECEPTOR LOCATED OUTSIDE OF THE BUILDING. IN AREAS SUBJECT TO FREEZING, THE RELIEF VALVE SHALL DISCHARGE THROUGH AN AIR GAP INTO AN INDIRECT WASTE RECEPTOR LOCATED WITHIN A HEATED SPACE., OR BY OTHER APPROVED MEANS. THE DISCHARGE SHALL BE INSTALLED IN A MANNER THAT DOES NOT CAUSE PERSONAL INJURY OR PROPERTY DAMAGE AND THAT IS READILY OBSERVABLE BY THE BUILDING OCCUPANTS. THE DISCHARGE FROM A RELIEF VALVE SHALL NOT BE TRAPPED. THE DIAMETER OF THE DISCHARGE PIPING SHALL NOT BE LESS THAN THE DIAMETER FO THE RELIEF VALVE OUTLET. THE DISCHARGE PIPE SHALL BE INSTALLED SO AS TO DRAIN BY GRAVITY FLOW AND SHALL TERMINATE ATMOSPHERICALLY NOT MORE THAN 6 INCHES (152 mm) ABOVE THE FLOOR. THE END OF THE PIPE SHALL NOT BE THREADED.

15 APPENDIX E SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: G 2437 (613) PAGE 375 CLOTHES DRYER EXHAUST G (613.1) INSTALLATION: CLOTHES DRYER SHALL BE EXHAUSTED IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS. DRYER EXHAUST SYSTEMS SHALL BE INDEPENDENT OF ALL OTHER SYSTEMS AND SHALL CONVEY THE MOISTURE AND ANY PRODUCTS OF COMBUSTION TO THE OUTSIDE OF THE BUILDING. G (613.2) DUCT PENETRATIONS: DUCTS THAT EXHAUST CLOTHES DRYERS SHALL NOT PENETRATE OR BE LOCATED ANY FIRE-BLOCKING, DRAFT STOPPING OR ANY WALL, FLOOR / CEILING OR OTHER ASSEMBLY REQUIRED BY THIS CODE TO BE FIRE- RESISTANCE-RATED, UNLESS SUCH DUCT IS CONSTRUCTED OF GALVANIZED STEEL OR ALUMINUM OF THE THICKNESS SPECIFIED IN THE MECHANICAL PROVISIONS OF THIS CODE AND THE FIRE-RESISTANCE RATING IS MAINTAINED IN ACCORDANCE WITH THIS CODE. G (613.6) CLOTHES DRYER DUCTS: EXHAUST DUCTS FOR DOMESTIC CLOTHES DRYERS SHALL HAVE A SMOOTH INTERIOR FINISH. THE EXHAUST DUCT SHALL BE A MINIMUM NOMINAL SIZE OF 4 INCHES (102 mm) IN DIAMETER. THE ENTIRE EXHAUST SYSTEM HALL BE SUPPORTED AND SECURED IN PLACE. THE MALE END OF THE DUCT AT OVER-LAPPED DUCT JOINTS SHALL EXTEND IN THE DIRECTION OF AIRFLOW. CLOTHES DRYER TRANSITION DUCTS USED TO CONNECT THE APPLIANCE TO THE EXHAUST DUCT SYSTEM SHALL BE METAL AND LIMITED TO A SINGLE LENGTH NOT TO EXCEED 8 FEET (2438 mm) IN LENGTH AND SHALL BE LISTED AND LABELED FOR THE APPLICATION. TRANSITION DUCTS SHALL NOT BE CONCEALED WITHIN CONSTRUCTION. G ( ) MAXIMUM LENGTH THE MAXIMUM LENGTH OF A CLOTHES DRYER EXHAUST VENT SHALL NOT EXCEED 25 FEET (7620 mm) FROM THE DRYER LOCATION TO THE OUTLET TERMINAL. THE MAXIMUM LENGTH OF THE DUCT SHALL BE REDUCED BY 2 1/2 FEET (762 mm) FOR EACH 45 DEGREE (0.79 rad) BEND AND 5 FEET (1524 mm) FOR EACH 90 DEGREE (1.6 rad) BEND. EXCEPTION: WHERE THE MAKE AND MODEL OF THE CLOTHES DRYER TO BE INSTALLED IS KNOWN AND THE MANUFACTURER'S INSTALLATION INSTRUCTIONS FOR SUCH DRYER ARE PROVIDED TO THE CODE OFFICIAL, THE MAXIMUM LENGTH OF THE EXHAUST DUCT, INCLUDING ANY TRANSITION DUCT, SHALL BE PERMITTED TO BE IN ACCORDANCE WITH THE DRYER MANUFACTURER'S INSTALLATION INSTRUCTIONS.

16 APPENDIX E-2 SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: R PAGE 49 & R317.2 POWER SOURCE SMOKE ALARMS R SINGLE AND MULTIPLE-STATION SMOKE ALARMS SINGLE AND MULTIPLE-STATION SMOKE ALARMS SHALL BE INSTALLED IN THE FOLLOWING LOCATIONS: 1 IN EACH SLEEPING ROOM 2 OUTSIDE OF EACH SEPARATE SLEEPING AREA IN THE IMMEDIATE VICINITY OF THE BEDROOMS 3 ON EACH ADDITIONAL STORY OF THE DWELLING, INCLUDING BASEMENTS AND CELLARS BUT NOT INCLUDING CRAWL SPACES AND UNINHABITABLE ATTICS.. IN DWELLINGS OR DWELLING UNITS WITH SPLIT LEVELS AND WITHOUT AN INTERVENING DOOR BETWEEN THE ADJACENT LEVELS, A SMOKE ALARM INSTALLED ON THE UPPER LEVEL SHALL SUFFICE FOR THE ADJACENT LOWER LEVEL PROVIDED THAT THE LOWER LEVEL IS LESS THAN ONE FULL STORY BELOW THE UPPER LEVEL. WHEN MORE THAN ONE SMOKE ALARM IS REQUIRED TO BE INSTALLED WITHIN AN INDIVIDUAL DWELLING UNIT, THE ALARM DEVICES SHALL BE INTERCONNECTED IN SUCH A MANNER THAT THE ACTUATION OF ONE ALARM WILL ACTIVATE ALL OF THE ALARMS IN THE INDIVIDUAL UNIT. THE ALARM SHALL BE CLEARLY AUDIBLE IN ALL BEDROOMS OVER BACKGROUND NOISE LEVELS WITH ALL INTERVENING DOORS CLOSED. ALL SMOKE ALARMS SHALL BE LISTED AND INSTALLED IN ACCORDANCE WITH THE PROVISIONS OF THIS CODE AND THE HOUSEHOLD FIRE WARNING EQUIPMENT PROVISIONS OF NFPA 72. R POWER SOURCE IN NEW CONSTRUCTION, THE REQUIRED SMOKE ALARMS SHALL RECEIVE THEIR PRIMARY POWER FROM THE BUILDING WIRING WHEN SUCH WIRING IS SERVED FROM A COMMERCIAL SOURCE, AND WHEN PRIMARY POWER IS INTERRUPTED, SHALL RECEIVE POWER FROM A BATTERY. WIRING SHALL BE PERMANENT AND WITHOUT A DISCONNECTING SWITCH OTHER THAN THOSE REQUIRED FOR OVERCURRENT PROTECTION. SMOKE ALARMS SHALL BE PERMITTED TO BE BATTERY OPERATED WHEN INSTALLED IN BUILDINGS WITHOUT COMMERCIAL POWER OR IN BUILDINGS THAT UNDERGO ALTERATIONS, REPAIRS, OR ADDITIONS REGULATED BY SECTION

17 APPENDIX E-3 SOURCE: INTERNATIONAL MECHANICAL CODE SECTION: CHAPTER 5, EXHAUST SYSTEMS, SECTION 501 PAGE 31 SECTION TRANSFER AIR PAGE 28 EXHAUST SYSTEMS SCOPE THIS CHAPTER SHALL GOVERN THE DESIGN, CONSTRUCTION, AND INSTALLATION OF MECHANICAL EXHAUST SYSTEMS, INCLUDING DUST, STOCK, AND REFUSE CONVEYOR SYSTEMS AND EXHAUST SYSTEMS SERVING COMMERCIAL FOOD HEAT- PROCESSING APPLIANCES INDEPENDENT SYSTEM REQUIRED SINGLE OR COMBINED MECHANICAL EXHAUST SYSTEMS FROM BATH, TOILET, URINAL, LOCKER, SERVICE SINK CLOSETS AND SIMILAR ROOMS SHALL BE INDEPENDENT OF ALL OTHER EXHAUST SYSTEMS. TYPE I EXHAUST SYSTEMS SHALL INDEPENDENT OF OTHER EXHAUST SYSTEMS EXCEPT AS PROVIDED IN SECTION SINGLE OR COMBINED TYPE II EXHAUST SYSTEMS FOR FOOD-PROCESSING OPERATIONS SHALL BE INDEPENDENT OF ALL OTHER EXHAUST SYSTEMS. KITCHEN EXHAUST SYSTEMS SHALL BE CONSTRUCTED IN ACCORDANCE WITH SECTION 505 FOR DOMESTIC EQUIPMENT AND SECTIONS 506 THROUGH 509 FOR COMMERCIAL EQUIPMENT OUTDOOR DISCHARGE THE AIR REMOVED BY EVERY MECHANICAL EXHAUST SYSTEM SHALL BE DISCHARGED OUTDOORS AT A POINT WHERE IT WILL NOT CAUSE A NUISANCE AND FROM WHICH IT CANNOT BE READILY DRAWN IN BY A VENTILATING SYSTEM. AIR SHALL NOT BE EXHAUSTED INTO AN ATTIC OR CRAWL SPACE. EXCEPTION: WHOLE HOUSE VENTILATION-TYPE ATTIC FANS THAT DISCHARGE INTO THE ATTIC SPACE OF DWELLING UNITS HAVE HAVING PRIVATE ATTIC SHALL NOT BE PROHIBITED TRANSFER AIR EXCEPT WHERE RECIRCULATION FRO SUCH SPACES IS PROHIBITED BY TABLE , AIR TRANSFERRED FROM OCCUPIED SPACES IS NOT PROHIBITED FROM SERVING AS MAKEUP AIR FOR REQUIRED EXHAUST SYSTEMS IN SUCH SPACES AS KITCHENS, BATHS, TOILET ROOMS, ELEVATORS, AND SMOKING LOUNGES. THE AMOUNT OF TRANSFER AIR AND EXHAUST AIR SHALL BE SUFFICIENT TO PROVIDE THE FLOW RATES AS SPECIFIED IN SECTIONS AND THE REQUIRED OUTDOOR AIR RATES SPECIFIED IN TABLE SHALL BE INTRODUCED DIRECTLY INTO SUCH SPACES OR INTO THE OCCUPIED SPACES FROM WHICH AIR IS TRANSFERRED OR A COMBINATION OF BOTH.

18 APPENDIX EE-1-A SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS (2000) SECTION: SECTION 1501 PAGE 299 M 1501 CLOTHES DRYER EXHAUSTS M GENERAL EXHAUST SYSTEMS DRYER EXHAUST SYSTEMS SHALL BE INDEPENDENT OF ALL OTHER SYSTEMS, SHALL CONVEY THE MOISTURE TO THE OUTDOORS AND SHALL TERMINATE ON THE OUTSIDE OF THE BUILDING. EXHAUST DUCT TERMINATION SHALL BE IN ACCORDANCE WITH DRYER MANUFACTURER'S INSTALLATION INSTRUCTIONS. SCREENS SHALL NOT BE INSTALLED AT THE DUCT TERMINATION. EXHAUST DUCTS SHALL NOT BE CONNECTED WITH SHEET-METAL SCREWS OR FASTENING MEANS WHICH EXTEND INTO THE DUCT. EXHAUST DUCTS SHALL BE EQUIPPED WITH A BACKDRAFT DAMPER. EXHAUST DUCTS SHALL BE CONSTRUCTED OF MINIMUM INCH THICK (O.406 mm) RIGID METAL DUCTS, HAVING SMOOTH INTERIOR SURFACES WITH JOINTS RUNNING IN THE DIRECTION OF THE AIR FLOW. FLEXIBLE TRANSITION DUCTS USED TO CONNECT THE DRYER TO THE EXHAUST DUCT SYSTEM SHALL BE LIMITED TO SINGLE LENGTHS, NOT TO EXCEED 8 FEET (2438 mm) IN LENGTH AND SHALL BE LISTED AND LABELED IN ACCORDANCE WITH UL 2158A. TRANSITION DUCTS SHALL NOT BE CONCEALED WITHIN CONSTRUCTION. M EXHAUST DUCT SIZE THE MINIMUM DIAMETER OF THE EXHAUST DUCT SHALL BE AS RECOMMENDED BY THE MANUFACTURER AND SHALL BE AT LEAST THE DIAMETER OF THE APPLIANCE OUTLET.

19 APPENDIX F SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: R 315 PAGE 49 R WIDTH PAGE 48 STAIR HANDRAILS & STAIR WIDTH R HANDRAILS HANDRAILS HAVING MINIMUM AND MAXIMUM HEIGHTS OF 34 INCHES AND 38 INCHES (864 mm AND 965 mm), RESPECTIVELY, MEASURED VERTICALLY FROM THE NOSING OF THE TREADS, SHALL BE PROVIDED ON AT LEAST ONE SIDE OF STAIRWAYS. ALL REQUIRED HANDRAILS SHALL BE CONTINUOUS THE FULL LENGTH OF THE STAIRS WITH TWO OR MORE RISERS FROM A POINT DIRECTLY ABOVE THE TOP RISER OF A FLIGHT TO A POINT DIRECTLY ABOVE THE LOWEST RISER OF THE FLIGHT. ENDS SHALL BE RETURNED OR SHALL TERMINATE IN NEWEL POSTS OR SAFETY TERMINALS. HANDRAILS ADJACENT TO A WALL SHALL HAVE A SPACE OF NOT LESS THAN 1.5 INCHES (38 mm) BETWEEN THE WALL AND THE HANDRAIL. EXCEPTIONS: 1. HANDRAILS SHALL BE PERMITTED TO BE INTERRUPTED BY A NEWEL POST AT A TURN. 2. THE USE OF A VOLUTE, TURNOUT, OR STARTING EASING SHALL BE ALLOWED OVER THE LOWEST TREAD. R HANDRAIL GRIP SIZE THE HANDGRIP PORTION OF HANDRAILS SHALL HAVE A CIRCULAR CROSS SECTION OF 1 1/4 INCHES (32 mm) MINIMUM TO 2 5/8 INCHES (67 mm) MAXIMUM. OTHER HANDRAIL SHAPES THAT PROVIDE AN EQUIVALENT GRASPING SURFACE ARE PERMISSIBLE. EDGES SHALL A MINIMUM RADIUS OF 1/8 INCH (3.2 mm). R WIDTH STAIRWAYS SHALL NOT BE LESS THAN 36 INCHES (914 mm) IN CLEAR WIDTH AT ALL POINTS ABOVE THE PERMITTED HANDRAIL HEIGHT AND BELOW THE REQUIRED HEADROOM HEIGHT. HANDRAILS SHALL NOT PROJECT MORE THAN 4.5 INCHES (114 mm) ON EITHER SIDE OF THE STAIRWAY AND THE MINIMUM CLEAR WIDTH OF THE STAIRWAY AT AND BELOW THE HANDRAIL HEIGHT, INCLUDING TREADS AND LANDINGS, SHALL NOT BE LESS THAN 31.5 INCHES (787 mm) WHERE A HANDRAIL IS INSTALLED ON ONE SIDE AND 27 INCHES (698 mm) WHERE HANDRAILS ARE PROVIDED ON BOTH SIDES. EXCEPTION: THE WIDTH OF THE SPIRAL STAIRWAYS SHALL BE IN ACCORDANCE WITH SECTION R314.5.

20 APPENDIX F-2 SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: R 314 PAGE 40 AND R PAGE 49 AND R PAGE 40 STAIRWAYS R WIDTH STAIRWAYS SHALL NOT BE LESS THAN 36 INCHES (914 mm) IN CLEAR WIDTH AT ALL POINTS ABOVE THE PERMITTED HANDRAIL HEIGHT AND BELOW THE REQUIRED HEADROOM HEIGHT. HANDRAILS SHALL NOT PROJECT MORE THAN 4.5 INCHES (114 mm) ON EITHER SIDE OF THE STAIRWAY AND THE MINIMUM CLEAR WIDTH OF THE STAIRWAY AT AND BELOW THE HANDRAIL HEIGHT, INCLUDING TREADS AND LANDINGS, SHALL NOT BE LESS THAN 31.5 INCHES (787 mm) WHERE A HANDRAIL IS INSTALLED ON ONE SIDE AND 27 INCHES (698 mm) WHERE HANDRAILS ARE PROVIDED ON BOTH SIDES. EXCEPTION: THE WIDTH OF SPIRAL STAIRWAYS SHALL BE IN ACCORDANCE WITH SECTION R R TREADS AND RISERS THE MAXIMUM RISER HEIGHT SHALL BE 7 3/4 INCHES (196 mm) AND THE MINIMUM TREAD DEPTH SHALL BE 10 INCHES (254 mm). THE RISER HEIGHT SHALL BE MEASURED VERTICALLY BETWEEN THE LEADING EDGES OF THE ADJACENT TREADS. THE TREAD DEPTH SHALL BE MEASURED HORIZONTALLY BETWEEN THE VERTICAL PLANES OF THE FOREMOST PROJECTION OF ADJACENT TREADS AT A RIGHT ANGLE TO THE TREAD'S LEADING EDGE. THE WALKING SURFACE OF TREADS AND LANDINGS OF A STAIRWAY SHALL BE SLOPED NO STEEPER THAN ONE UNIT VERTICAL IN 48 UNITS HORIZONTAL (2 PERCENT SLOPE). THE GREATEST RISER HEIGHT WITHIN ANY FLIGHT OF STAIRS SHALL NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH (9.5 mm). THE GREATEST TREAD DEPTH WITHIN ANY FLIGHT OF STAIRS SHALL NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH (9.5 mm). R HEADROOM THE MINIMUM HEADROOM IN ALL PARTS OF THE STAIRWAY, SHALL NOT BE LESS THAN 6 FEET, 8 INCHES (2032 mm) MEASURED VERTICALLY FROM THE SLOPED PLANE ADJOINING THE TREAD NOSING OR FROM THE FLOOR SURFACE OF THE LANDING OR PLATFORM.

21 APPENDIX FF-1-A SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: SECTION R PAGE 112 SECTION R UNDER STAIR PROTECTION SECTION R PAGE 264 R FIREBLOCKING REQUIRED. FIREBLOCKING SHALL BE PROVIDED TO CUT OFF ALL CONCEALED DRAFT OPENINGS (BOTH VERTICAL AND HORIZONTAL) AND TO FORM AN EFFECTIVE FIRE BARRIER BETWEEN STORIES, AND BETWEEN A TOP STORY AND THE ROOF SPACE. FIREBLOCKING SHALL BE PROVIDED IN WOOD-FRAME CONSTRUCTION IN THE FOLLOWING LOCATIONS: 1 IN CONCEALED SPACES OF STUD WALLS AND PARTITIONS, INCLUDING FURRED SPACES, AT THE CEILING AND FLOOR LEVEL AND AT 10 FOOT (3048mm) INTERVALS BOTH VERTICAL AND HORIZONTAL. BATTS OR BLANKETS OF MINERAL OR GLASS FIBER OR OTHER APPROVED NON-RIGID MATERIALS SHALL BE ALLOWED AS FIREBLOCKING IN WALLS CONSTRUCTED USING PARALLEL ROWS OF STUDS OR STAGGERED STUDS. 2 AT ALL INTERCONNECTIONS BETWEEN CONCEALED VERTICAL AND HORIZONTAL SPACES SUCH AS OCCUR AT SOFFITS, DROP CEILINGS, AND COVE CEILINGS. 3 IN CONCEALED SPACES BETWEEN STAIR STRINGERS AT THE TOP AND BOTTOM OF THE RUN. ENCLOSED SPACES UNDER STAIRS SHALL COMPLY WITH SECTION R AT OPENINGS AROUND VENTS, PIPES, AND DUCTS AT CEILING AND FLOOR LEVEL, WITH AN APPROVED MATERIAL TO RESIST THE FREE PASSAGE OF FLAME AND PRODUCTS OF COMBUSTION. 5 FOR THE FIREBLOCKING OF CHIMNEYS AND FIREPLACES, SEE SECTION R FIREBLOCKING OF CORNICES OF A TWO-FAMILY DWELLING IS REQUIRED AT THE LINE OF DWELLING UNIT SEPARATION. R UNDER STAIR PROTECTION ENCLOSED ACCESSIBLE SPACE UNDER STAIRS SHALL HAVE WALLS, UNDER STAIR SURFACE AND ANY SOFFITS PROTECTED ON THE ENCLOSED SIDE WITH 1/2 INCH (12.7mm) GYPSUM BOARD. R CHIMNEY FIREBLOCKING ALL SPACES BETWEEN THE CHIMNEYS AND FLOORS AND CEILINGS THROUGH WHICH CHIMNEYS PASS SHALL BE FIREBLOCKED WITH NONCOMBUSTIBLE MATERIAL SECURELY FASTENED IN PLACE. THE FIREBLOCKING OF SPACES BETWEEN CHIMNEYS AND WOOD JOISTS, BEAMS, OR HEADERS SHALL BE TO A DEPTH OF 1 INCH (25mm) AND SHALL ONLY BE PLACED ON STRIPS OF METAL OR METAL LATH LAID ACROSS THE SPACES BETWEEN COMBUSTIBLE MATERIAL AND THE CHIMNEY.

22 APPENDIX FF-2-A SOURCE: NATIONAL ELECTRICAL CODE (NEC 2002 EDITION) SECTION: SECTION PAGE HEATING, AIR CONDITIONING, AND REFRIGERATION EQUIPMENT OUTLET A 125-VOLT, SINGLE-PHASE, 15 OR 20 AMPERE-RATED RECEPTACLE OUTLET SHALL BE INSTALLED AT AN ACCESSIBLE LOCATION FOR THE SERVICING OF HEATING, AIR CONDITIONING AND REFRIGERATION EQUIPMENT. THE RECEPTACLE SHALL BE LOCATED ON THE SAME LEVEL AND WITHIN 7.5 m (25 FT.) OF THE HEATING, AIR CONDITIONING, AND REFRIGERATION EQUIPMENT. THE RECEPTACLE OUTLET SHALL NOT BE CONNECTED TO THE LOAD SIDE OF THE EQUIPMENT DISCONNECTING MEANS.

23 APPENDIX G SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: R 316 PAGE 49 R GUARDS GUARDS PORCHES, BALCONIES, OR RAISED FLOOR SURFACES LOCATED MORE THAN 30 INCHES (762 mm) ABOVE THE FLOOR OR GRADE BELOW SHALL HAVE GUARDS OT LESS THAN 36 INCHES (914 mm) IN HEIGHT. OPEN SIDES OF STAIRS WITH A TOTAL RISE OF MORE THAN 30 INCHES (762 mm) ABOVE THE FLOOR OR GRADE BELOW SHALL HAVE GUARDS NOT LESS THAN 34 INCHES (864 mm) IN HEIGHT MEASURED VERTICALLY FROM THE NOSING OF THE TREADS. R GUARD OPENING LIMITATIONS REQUIRED GUARDS ON OPEN SIDES OF STAIRWAYS, RAISED FLOOR AREAS, BALCONIES AND PORCHES SHALL HAVE INTERMEDIATE RAILS OR ORNAMENTAL CLOSURES THAT DO NOT ALLOW THE PASSAGE OF A SPHERE 4 INCHES (102 mm) IN DIAMETER. REQUIRED GUARDS SHALL NOT BE CONSTRUCTED WITH HORIZONTAL RAILS OR OTHER ORNAMENTAL PATTERNS THAT RESULTS IN A LADDER EFFECT. EXCEPTION: THE TRIANGULAR OPENINGS FORMED BY THE RISER, TREAD, AND BOTTOM RAIL OF A GUARD AT THE OPEN SIDE OF A STAIRWAY ARE PERMITTED TO BE OF SUCH A SIZE THAT A SPHERE 6 INCHES (152 mm) CANNOT PASS THROUGH.

24 SOURCE: INTERNATIONAL FUEL GAS CODE SECTION: 409 (IFGC) SHUTOFF VALVES PAGE 67 ALLIED HOME INSPECTION SERVICES APPENDIX H GENERAL PIPING SYSTEMS SHALL BE PROVIDED WITH SHUTOFF VALVES IN ACCORDANCE WITH THIS SECTION VALVE APPROVAL SHUTOFF VALVES SHALL BE OF AN APPROVED TYPE. SHUTOFF VALVES SHALL BE CONSTRUCTED OF MATERIALS COMPATIBLE WITH THE PIPING. SHUTOFF VALVES INSTALLED IN A PORTION OF A PIPING SYSTEM OPERATING ABOVE 0.5 psig SHALL COMPLY WITH ASME B SHUTOFF VALVES INSTALLED IN A PORTION OF A PIPING SYSTEM OPERATING AT 0.5 psig OR LESS SHALL COMPLY WITH ANSI Z21.15 OR ASME B PROHIBITED LOCATIONS SHUTOFF VALVES SHALL BE PROHIBITED IN CONCEALED LOCATIONS AND SPACES USED AS PLENUMS ACCESS TO SHUTOFF VALVES SHUTOFF VALVES SHALL BE LOCATED IN PLACES SO AS TO PROVIDE ACCESS FOR OPERATION AND SHALL BE INSTALLED SO AS TO BE PROTECTED FROM DAMAGE METER VALVE EVERY METER SHALL BE EQUIPPED WITH A SHUTOFF VALVE LOCATED ON THE SUPPLY SIDE OF THE METER SHUTOFF VALVES FOR MULTIPLE-HOUSE LINE SYSTEMS WHERE A SINGLE METER IS USED TO SUPPLY GAS TO MORE THAN ONE BUILDING OR TENANT, A SEPARATE SHUTOFF VALVE SHALL BE PROVIDED FOR EACH BUILDING OR TENANT EQUIPMENT SHUTOFF VALVE EACH APPLIANCE SHALL BE PROVIDED WITH A SEPARATE SHUTOFF VALVE SEPARATE FROM THE APPLIANCE. THE SHUTOFF VALVE SHALL BE LOCATED IN THE SAME ROOM AS THE APPLIANCE, NOT FURTHER THAN 6 FEET (1829 mm) FROM THE APPLIANCE AND SHALL BE INSTALLED UPSTREAM FROM THE UNION, CONNECTOR, OR QUICK DISCONNECT DEVICE IT SERVES. SUCH SHUTOFF VALVES SHALL BE PROVIDED WITH READY ACCESS.

25 . APPENDIX HH-1 SOURCE: INTERNATIONAL FUEL GAS CODE 2000 SECTION: PAGE 72 VENTING OF GAS APPLIANCES VENT CONNECTORS FOR CATEGORY I EQUIPMENT VENT CONNECTORS FOR CATEGORY I EQUIPMENT SHALL COMPLY WITH SECTIONS THROUGH WHERE REQUIRED A VENT CONNECTOR SHALL BE USED TO CONNECT EQUIPMENT TO A GAS VENT, CHIMNEY, OR SINGLE WALL METAL PIPE, EXCEPT WHERE THE GAS VENT, CHIMNEY, OR SINGLE WALL METAL PIPE IS DIRECTLY CONNECTED TO THE EQUIPMENT MATERIALS VENT CONNECTORS SHALL BE CONSTRUCTED IN ACCORDANCE WITH SECTIONS THROUGH GENERAL A VENT CONNECTOR SHALL BE MADE OF NONCOMBUSTIBLE CORROSION-RESISTANT MATERIAL CAPABLE OF WITHSTANDING THE VENT GAS TEMPERATURE PRODUCED BY THE EQUIPMENT AND OF SUFFICIENT THICKNESS TO WITHSTAND PHYSICAL DAMAGE VENT CONNECTORS LOCATED IN UNCONDITIONED AREAS WHERE THE VENT CONNECTOR USED FOR EQUIPMENT HAVING A DRAFT HOOD OR A CATEGORY I APPLIANCE IS LOCATED IN OR PASSES THROUGH AN ATTIC SPACE OR OTHER UNCONDITIONED AREA, THAT PORTION OF THE VENT CONNECTOR SHALL BE LISTED TYPE B OR TYPE L OR LISTED VENT MATERIAL OR LISTED VENT MATERIAL HAVING EQUIVALENT INSULATION QUALITIES RESIDENTIAL - TYPE APPLIANCE CONNECTORS WHERE VENT CONNECTORS FOR RESIDENTIAL-TYPE APPLIANCES ARE NOT INSTALLED IN ATTICS OR OTHER UNCONDITIONED SPACES, CONNECTORS FOR LISTED APPLIANCES HAVING DRAFT HOODS AND FOR APPLIANCES HAVING DRAFT HOODS AND EQUIPPED WITH LISTED CONVERSION BURNERS SHALL BE ONE OF THE FOLLOWING: 1 TYPE B OR TYPE L VENT MATERIAL 2 GALVANIZED SHEET STEEL NOT LESS THAN 0.18 INCH (0.46 mm) THICK 3 ALUMINUM (1100 OR 3003 ALLOY OR EQUIVALENT) SHEET NOT LESS THAN INCH (0.69 mm) THICK 4 STAINLESS STEEL SHEET NOT LESS THAN INCH (0.31mm) THICK 5 SMOOTH INTERIOR WALL METAL PIPE HAVING RESISTANCE TO HEAT AND CORROSION EQUAL TO OR GREATER THAN THAT OF ITEM 2,3, OR 4 ABOVE. 6 VENT CONNECTORS SHALL NOT BE COVERED WITH INSULATION.

26 APPENDIX HH-2 SOURCE: INTERNATIONAL FUEL GAS CODE 2000 SECTION: , , & PAGES 70 & 71 INSTALLATION OF VENTING OF GAS APPLIANCES ROOF PENETRATIONS A PIPE PASSING THROUGH A ROOF SHALL EXTEND WITHOUT INTERRUPTION THROUGH THE ROOF FLASHING, ROOF JACKET, OR ROOF THIMBLE. WHERE A SINGLE-WALL METAL PIPE PASSES THROUGH A ROOF CONSTRUCTED OF COMBUSTIBLE MATERIAL, A NONCOMBUSTIBLE, NONVENTILATING THIMBLE SHALL BE USED AT THE POINT OF PASSAGE. THE THIMBLE SHALL EXTEND AT LEAST 18 INCHES (457 mm) ABOVE AND 6 INCHES (152 mm) BELOW THE ROOF WITH THE ANNULAR SPACE OPEN AT THE BOTTOM AND CLOSED ONLY AT THE TOP. THE THIMBLE SHALL BE SIZED IN ACCORDANCE WITH SECTION INSTALLATION SINGLE-WALL METAL PIPE SHALL NOT ORIGINATE IN ANY UNOCCUPIED ATTIC OR CONCEALED SPACE AND SHALL NOT PASS THROUGH ANY ATTIC, INSIDE WALL, CONCEALED SPACE, OR FLOOR. THE INSTALLATION OF A SINGLE-WALL METAL PIPE THROUGH AN EXTERIOR COMBUSTIBLE WALL SHALL COMPLY WITH SECTION SINGLE-WALL MEAL PIPE USED FOR VENTING AN INCINERATOR SHALL BE EXPOSED AND READILY EXAMINABLE FOR ITS FULL LENGTH AND SHALL HAVE SUITABLE CLEARANCE MAINTAINED CLEARANCES MINIMUM CLEARANCES FROM SINGLE-WALL METAL PIPE TO COMBUSTIBLE MATERIAL SHALL BE IN ACCORDANCE WITH TABLE THE CLEARANCE FROM SINGLE-WALL METAL PIPE TO COMBUSTIBLE MATERIAL SHALL BE PERMITTED TO BE REDUCED WHERE THE COMBUSTIBLE MATERIAL IS PROTECTED AS SPECIFIED FOR VENT CONNECTORS IN TABLE SIZE OF A SINGLE-WALL METAL PIPE A VENTING SYSTEM CONSTRUCTED OF A SINGLE-WALL METAL PIPE SHALL BE SIZED IN ACCORDANCE WITH ONE OF THE FOLLOWING METHODS AND THE EQUIPMENT MANUFACTURER'S INSTRUCTIONS: 1 FOR A DRAFT-HOOD-EQUIPPED APPLIANCE, IN ACCORDANCE WITH SECTION FOR A VENTING SYSTEM FOR A SINGLE APPLIANCE WITH A DRAFT HOOD, THE AREAS OF THE CONNECTOR AND THE PIPE EACH SHALL BE NOT LESS THAN THE AREA OF THE APPLIANCE FLUE COLLAR OR DRAFT HOOD OUTLET,. WHICHEVER IS SMALLER. THE VENT AREA SHALL NOT BE GREATER THAN SEVEN TIMES THE DRAFT HOOD OUTLET AREA. 3 OTHER APPROVED ENGINEERING METHODS.

27 APPENDIX HH-3 SOURCE: INTERNATIONAL FUEL GAS CODE 2000 SECTION: 202 DEFINITIONS & EQUIPMENT REQUIRING DRAFT HOODS PAGE 12 & 75 DRAFT HOOD DEFINITION 1 A NONADJUSTABLE DEVICE BUILT INTO AN APPLIANCE, OR MADE AS PART OF THE VENT CONNECTOR FROM AN APPLIANCE, THAT IS DESIGNED TO 2 PROVIDE FOR READY ESCAPE OF THE FLUE GASES FROM THE APPLIANCE IN THE EVENT OF NO DRAFT, BACK-DRAFT, OR STOPPAGE BEYOND THE DRAFT HOOD. 3 PREVENT A BACK-DRAFT FROM ENTERING THE APPLIANCE NEUTRALIZE THE EFFECT OF STACK ACTION OF THE CHIMNEY OR GAS VENT UPON OPERATION OF THE APPLIANCE EQUIPMENT REQUIRING DRAFT HOODS VENT EQUIPMENT SHALL BE INSTALLED WITH DRAFT HOODS EXCEPTION: DUAL OVEN TYPE COMBINATION RANGES, INCINERATORS, DIRECT-VENT EQUIPMENT, FAN-ASSISTED COMBUSTION SYSTEM APPLIANCES, EQUIPMENT REQUIRING CHIMNEY DRAFT FOR OPERATION, SINGLE FIREBOX BOILERS EQUIPPED WITH CONVERSION BURNERS WITH INPUTS GREATER THAN 400,000 BTU (117 Kw), EQUIPMENT EQUIPPED WITH BLAST, POWER, OR PRESSURE BURNERS THAT ARE NOT LISTED FOR USE WITH DRAFT HOODS, AND EQUIPMENT DESIGNED FOR FORCED VENTING INSTALLATION A DRAFT HOOD SUPPLIED WITH OR FORMING A PART OF LISTED VENTED EQUIPMENT SHALL BE INSTALLED WITHOUT ALTERATION, EXACTLY AS FURNISHED AND SPECIFIED BY THE EQUIPMENT MANUFACTURER. IF A DRAFT HOOD IS NOT SUPPLIED BY THE EQUIPMENT MANUFACTURER WHERE ONE IS REQUIRED, A DRAFT HOOD SHALL BE INSTALLED, SHALL BE OF A LISTED OR APPROVED TYPE AND, IN THE ABSENCE OF OTHER INSTRUCTIONS, SHALL BE OF THE SAME SIZE AS THE EQUIPMENT FLUE COLLAR. WHERE A DRAFT HOOD IS REQUIRED WITH A CONVERSION BURNER, IT SHALL BE OF A LISTED OR APPROVED TYPE. EXCEPTION WHERE IT IS DETERMINED THAT A DRAFT HOOD OF SPECIAL DESIGN IS NEEDED OR PREFERABLE FOR A PARTICULAR INSTALLATION, THE INSTALLATION SHALL BE IN ACCORDANCE WITH THE RECOMMENDATIONS OF THE EQUIPMENT MANUFACTURER AND SHALL BE APPROVED DRAFT CONTROL DEVICES WHERE A DRAFT CONTROL DEVICE IS PART OF THE EQUIPMENT OR IS SUPPLIED BY THE EQUIPMENT MANUFACTURER, IT SHALL BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS. IN THE ABSENCE OF MANUFACTURER'S INSTRUCTIONS, THE DEVICE SHALL BE ATTACHED TO THE FLUE COLLAR OF THE EQUIPMENT OR AS NEAR TO THE EQUIPMENT AS PRACTICAL.

28 APPENDIX I SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: R PAGE 48 AND R PAGE 49 R SPIRAL STAIRS SPIRAL STAIRS SPIRAL STAIRWAYS ARE PERMITTED, PROVIDED THE MINIMUM WIDTH SHALL BE 26 INCHES (660 mm) WITH EACH TREAD HAVE A 7 1/2 INCH (190 mm) MINIMUM TREAD WIDTH AT 12 INCHES (305 mm) FROM THE NARROW EDGE. ALL TREADS SHALL BE IDENTICAL, AND THE RISE SHALL BE NO MORE THAN 9 1/2 INCHES (241 mm), A MINIMUM HEADROOM OF 6 FEET, 6 INCHES (1982 mm) SHALL BE PROVIDED. R314.6 CIRCULAR STAIRS CIRCULAR STAIRS CIRCULAR STAIRWAYS SHALL HAVE A TREAD DEPTH AT A POINT NOT MORE THAN 12 INCHES (305 mm) FROM THE SIDE WHERE THE TREADS ARE NARROWER OF NOT LESS THAN 11 INCHES (279 mm) AND THE MINIMUM DEPTH OF ANY TREAD SHALL NOT BE LESS THAN 6 INCHES (152 mm). TREAD DEPTH AT ANY WALKING LINE, MEASURED A CONSISTENT DISTANCE FROM A SIDE OF THE STAIRWAY, SHALL BE UNIFORM AS SPECIFIED IN SECTION R (SEE APPENDIX F)

29 APPENDIX I-2 SOURCE: IRC (INTERNATIONAL RESIDENTIAL CODE FOR ONE AND TWO FAMILY DWELLINGS) 2000 SECTION: R 303 LIGHT, VENTILATION, AND HEATING PAGES 42 & 43 LIGHT, VENTILATION, AND HEATING R HABITABLE ROOMS ALL HABITABLE ROOMS SHALL BE PROVIDED WITH AGGREGATE GLAZING AREA OF NOT LESS THAN 8 PERCENT OF THE FLOOR AREA OF SUCH ROOMS. NATURAL VENTILATION SHALL BE THROUGH WINDOWS, DOORS, LOUVERS OR OTHER APPROVED OPENINGS TO THE OUTDOOR AIR. SUCH OPENINGS SHALL BE PROVIDED WITH READY ACCESS OR SHALL OTHERWISE BE READILY CONTROLLABLE B THE BUILDING OCCUPANTS. THE MINIMUM OPENABLE AREA TO THE OUTDOORS SHALL BE 4 PERCENT OF THE FLOOR AREA BEING VENTILATED. EXCEPTIONS: 1 THE GLAZED AREAS NEED NOT BE OPENABLE WHERE THE OPENING IS NOT REQUIRED BY SECTION R 310 AND AN APPROVED MECHANICAL VENTILATION SYSTEM IS PROVIDED CAPABLE OF PRODUCING O.35 AIR CHANGE PER HOUR N THE ROOM OR A WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM IS INSTALLED CAPABLE OF SUPPLYING OUTDOOR VENTILATION AIR OF 15 CUBIC FEET PER MINUTE (CFM) (7.08 L/s) PER OCCUPANT COMPUTED ON THE BASIS OF TWO OCCUPANTS FOR THE FIRST BEDROOM AND ONE OCCUPANT FOR EACH ADDITIONAL BEDROOM. 2 THE GLAZED AREAS NEED NOT BE PROVIDED IN ROOMS WHERE EXCEPTION 1 ABOVE IS SATISFIED AND ARTIFICIAL LIGHT IS PROVIDED CAPABLE OF PRODUCING AN AVERAGE ILLUMINATION OF 6 FOOT-CANDLES (6.46 lux) OVER THE AREA OF THE ROOM AT A HEIGHT OF 30 INCHES (762mm) ABOVE THE FLOOR LEVEL. R ADJOINING ROOMS FOR THE PURPOSE OF DETERMINING LIGHT AND VENTILATION REQUIREMENTS, ANY ROOM SHALL BE CONSIDERED AS A PORTION OF AN ADJOINING ROOM WHEN AT LEAST ONE HALF OF THE AREA OF THE COMMON WALL IS OPEN AND UNOBSTRUCTED AND PROVIDES AN OPENING OF NOT LESS THAN ONE-TENTH OF THE FLOOR AREA OF THE INTERIOR ROOM BUT NOT LESS THAN 25 SQUARE FEET (2.32M2). R REQUIRED HEATING WHEN THE WINTER DESIGN TEMPERATURE IN TABLE R (1) IS BELOW 60 DEGREES F (16 DEGREE C), EVERY DWELLING UNIT SHALL BE PROVIDED WITH HEATING FACILITIES CAPABLE OF MAINTAINING A MINIMUM ROOM TEMPERATURE OF 68 DEGREES F (20 DEGREE C) AT A POINT 3 FEET (914 mm) ABOVE THE FLOOR AND 2 FEET (610 mm) FROM EXTERIOR WALLS IN ALL HABITABLE ROOMS AT THE DESIGN TEMPERATURE.