2617 VIRGINIA AVE 2017-07-28 - Laserfiche WebLink

General Notes: (general notes cont) (general notes cont) (general notes cont) THE FOLLOWING"GENERAL NOTES"ARE EXCERPTS FROM THE 2009 STUDS-DRILLING AND NOTCHING: IRC Section 602.6: Drilling and notching of studs shall be GUARDS(continued): Exception: 1)Guards on the open sides of stairs shall have a height not EXTERIOR COVERING:IRC Section R703:Provide the building with a weather-resistant exterior INTERNATIONAL RESIDENTIAL CODE(IRC).THESE EXCERPTS ARE NOT In accordance with the following:1)Notching.Any stud in an exterior wall or bearing partition may leas than 34 inches measured vertically fmm a fine connecting the leading edges of the treads.2) wall envelope.The exterior wall envelope shall Include flashing as described In Section R703.8. INTENDED TO EXPRESS THE ENTIRE 2009 IRC REQUIREMENTS.THE be cut or notched to a depth not exceeding 25 percent of its width.Studs In nonbearing partitions Where the top of the guard also serves as a handrail on the open sides of stairs,the lop of the Ensure proper fastening for type used.wood siding may not be less than 3/8"thick.See Table BUILDING(S)REFERENCED WITHIN THESE DRAWINGS SHALL BE may be notched to a depth not to exceed 40 percent of a single stud width.2)Drilling.Any stud guard shag not be less than 34 inches and not mora than 38 Inches measured vertically from a line R703.4. CONSTRUCTED BY A QUALIFIED CONTRACTOR,KNOWLEDGEABLE OF may be bored or drilled,provided that the diameter of the resulting hole Is no more than 60 percent connecting the leading edges of the treads. of the stud width,the edge of the hole is no more than 5/8 inch to the edge of the stud,and the hole HEATING:IRC Section 303.8:When the winter design CW Design,Inc. CURRENT STATE&LOCAL BUILDING CODES INCLUDING STANDARD tin temperature in Table f maintain is below 60 g CONSTRUCTION METHODS. Is not located in the same section as a cut or notch.Studs located in exterior wells a bearing CEILING HEIGHT:IRC Section R305.1; Habitable space,hallways,bathrooms,toilet rooms, degrees F.every dwelling unit shall be provided the heating facilities capable of maintaining a wnvw.cwdesgninc.cvm partitions drilled over 40 percent and up to 60 percent shall also be doubled with no more than two laundry rooms and portions of basements containing these spaces shall have a ceiling height of not minimum room temperature of 68 degrees F at a point 3 feet above the floor and 2 feet from successive doubled studs bored.See IRC Section 602.6,figures R602.6(1)and R602.6(2). less than 7 feet. Exceptions: 1)For rooms with sloped ceilings,at least 50 percent of the exterior wags in all habitable rooms at the design temperature.The installation of one or more P.O.Box 476 FOUNDATION DRAINAGE: IRC Section R401.3 Drainage.Surface drainage shall be diverted to required floor area of the room must have a ceiling height of at least 7 feet and no portion of the portable space heaters shall not be used to achieve compliance with this section. Renton,WA 98057 an approved point of collection so as to not create a hazard.Lots shall be graded so as to drain DWELLINGIGARAGE OPENING PROTECTION: IRC Sections R302.5.1: Openings from a required floor area may have a ceiling height of less than 5 feet.2)Bathrooms shall have a 425-271-0082(office) surface water away from foundation walls.The grade away from foundation walls shall fan a private garage directly into a room used for sleeping purposes shall not be permitted.Other minimum ceiling height of 6 feel 8 inches at the center of the front clearance area for fixtures SMOKE DETECTORS:IRC Section R314.1: All smoke alarms shall be listed in accordance with 425-228-8699(fax) minimum of 6Inches within the first 10 feet.Exception:Where lot lines,walls,slopes or other openings between the garage and residence shall be equipped with solid wood doors not less than (Figure R307.1).The ceiling height above fixtures shall be such that the fixture Is capable of being UL 217 and installed in accordance with the provisions of this code and the household fire warning Copyright c physical bamers prohibit 6lnches of fall within 10 feet,drains or swales shall be constructed to 1318 inches in thickness,solid or honeycomb core steel doom not lase than 1-3/6 inches thick,or used for its intended purpose.A shower or tub equipped with a showerhaatl shall have a minimum equipment provisions of NFPA 72. IRC Section 314.2: Household fire alarm systems installed in ©CW Design, In ensure drainage away from the structure.Impervious surfaces within 10 feet of the building 20-minute fire-rated doors. ceiling height of 6 feet 8 inches above a minimum 30 Inches by 30 Inches at the showerhead. IRC accordance with NFPA 72 that include smoke alarms,or a combination of smoke detector and g foundation shall be sloped a minimum o12 percent away from the building. IRC Section R405.1 Secllon RS03.1.1: Portions of basements that do not contain habitable space,halhweys, audible notification device installed as required by this section for smoke alarms,shall be permitted. Concrete or masonry foundations. Drains shall be provided around all concrete or masonry DWELLING/GARAGE DUCT PROTECTION: IRC Sections R302.6.2: Ducts In the garage and bathrooms,toilet rooms and laundry rooms shall have a ceiling height of not less than 6 feet 8 The household fire alarm system shall provide the same level of smoke detection and alarm as foundations that retain earth and enclose habitable or useable spaces located below grade. ducts penetrating the walls or ceilings separating the dwelling from the garage shall be constructed Inches. Exception: 1)Beams,girders,ducts or other obstructions may project to within 6 feet 4 Drainage tiles, ravel,or crushed stone drains,perforated pp y of a minimum No.26 gage sheet steel or other a 1 a cWretl at this section for smoke alarms.Where ic household fire warning system is Installed using .rx. " g 9 pipe or other approved systems it g g approved material and shall have no openings into Inches of the finished floor. a combination of smoke detector and audible notification device(s).It shall become a permanent a" c"^�+cr_H'*re 1;1 materials anal)be installed at or below the area ys e protected and shall discharge in gravity t the garage. fixture of the occupancy and owned by the homeowner.The system shall be monitored by an mvorws vwrsx nnrEmu.w.acw_ mechanical means into an approved drainage system.Gravel or crashed stone drains shell extend ACCESS:IRC Section R408.4: Access shall be provided at all under-floor spaces.Access approved supervising station and be maintained in accordance with NFPA 72. Exceptions: ,a.mxsorEsn.rre,ws-merra. - at least l-foot beyond the outside ed of the footling and at least 6 inches above the to of the wor.�on.no�r..mx se.- Y 9e 9 P DWELLINGIGARAGE FIRE SEPARATION: IRC Sections R302.6: The garage shall be separated openings through the floor shall be a minimum of 18 inches by 24 Inches.Openings through a Where smoke alarms are provided meeting the requirements of Section R314.4. IRC Section == tiles and be covered with an approved filler membrane material.The top of open joints of drain from the residence and since with not less than 1/2-inch gypsum board or equivalent applied to the perimeter wall shall be not less than 16 inches by 24 Inches.When any portion of the through-wall 314.3:When more than one smoke alarm is required fo be installed within an individual dwelling .00Mp�vxnoMracuc...=Z=-""� tiles shall be protected with strips of building paper,and the drainage tiles or perforated pipe shall be garage side.The garage shall be separated from all habitable rooms above the garage with not access Is below grade,an areaway not less than 16 inches by 24 Inches shall be provided.The unit the alarm devices shall be interconnected in such a manner that the actuation of one alarm will placed on a minimum 2 Inches of washed gravel or crushed rock at least one sieve size larger than less than 5/8-inch Type'X'gypsum board or equivalent.All structure(s)supporting floor/oeilling bottom of the areaway shalt be below the threshold of the access opening.Through wall access activate all of the alarms in the individual unit.Smoke alarms shall be Installed in the following the file joint opening or perforation and covered with not less than 6 inches of the same m material. assemblies used for separation required by this section shall be not less than 1/2inch gypsum openings shall not be located under a door to the residence.See Section M1305.1.4 for access locations: 1)In each sleeping mom.2)Outside each separate sleeping area in the Immediate _ _ hoard or equivalent. requirements where mechanical equipment is located under floors. IRC Section R8D7.1: Buildings vicinity of the bedmoms.3)On each additional story of the dwelling,including basements and . UNDER-FLOOR VENTILATION:IRC Section r any b Ventilation. The under-boor space between with combustible ceding or roof construction shall have an attic access opening to attic areas that habitable attics but not including crawl spaces and uninhabitable attics.In dwellings or dwelling �s,�,R'.-_"-_Ae.,°„° the bottom of the floor joists and the earth under any building(except space occupied by a FIREBLOCKING:IRC Sections R302.11: In combustible construction,fireblocking shall be exceed 30 square feet and have a vertical height of 30 inches or greater.The vertical height shall units with split levels and without on Intervening door between the adjacent levels,a smoke alarm basement)shall have ventilation openings through foundation walls or exterior wells.The minimum provided to cut off all concealed draft openings(both vertical and horizontal)and to form an be measured from the top of the ceiling framing members to the underside of the roof framing installed on the upper level shall suffice for the adjacent lower level provided that the lower level is net area of ventilation openings shall not be less than 1 square foot for each 150 square lost of effective in barrier between stories,and between a top story and the roof space.Fireblocking shall members.The rough-framed opening shall not be less than 22 inches by 30 inches and shall be less than one full story below the upper level. IRC Section 314.3.1: When alterations,repairs or under-floor space area,unless the ground surface is covered by a Class 1 vapor retarder material. be provided in wood-frame construction In the following locations: 1)In concealed spaces of stud located in a hallway or other readily accesslble location,When located in a wall,the opening shall additions requiring a permit occur,or when one or more sleeping rooms are added or created in When a Class 1 vapor retarder material is used,the minimum net area of ventilation openings shall walls and partitions,including furred spaces and parallel rows of studs or staggered studs;as be a minimum of 22 Inches wide by 30 Inches high.When access is located In a ceiling,minimum existing dwellings,the Individual dwelling unit shall be equipped with smoke alarms located as not be less than 1 square foot for each 1,500 square feet of under-floor space area.One such follows: 1.1)Vertical at the ceiling and floor levels.1.2)Horizontally at Intervals not exceeding 10 unobstructed headroom in the attic space shall be 30 Inches at some point above then access required for new dwellings. Exceptions: 1)Work involving the exterior surface of dwellings,such ventilating opening shall be within 3 feet of each corner of the building. IRC Section R408.2 feet.2)At all Interconnections between concealed vertical and horizontal spaces such as occur at measured vertically from the bottom of ceiling framing members.See Section M7305.1.3 for access as the replacement of roofing or siding,or the addition or replacement of windows or doors,or the Openings for under-floor ventilation. The minimum net ventilation openings shall not be less than soffits,drop ceilings and cove ceilings.3)In concealed spaces between stair stringers at the top requirements where mechanical equipment is located in attics. addition of a porch or deck,are exempt from the requirements of this section.2)Installation, I square fool for each 150 square feet of under-floor area.One ventilation opening shall be within 3 and bottom of the run.Enclosed spaces under stairs shall comply with IRC Section R302.7.4)At alteration or repairs of plumbing or mechanical systems are exempt from the requirements of this feel of each comer of the building.Ventilation openings shall be covered for thea height and width openings around vents,pipes,ducts,cables and wires at telling and floor level,with an approved WINDOW WELLS:IRC Section R310.2: The minimum horizontal area of the window well shall be section. IRC Section 314.4: Smoke alarms shall receive their primary power from the building With any of the following materials provided that the least dimension of the covering shall not exceed material to resist the free passage of flame and products of combustion.The material filling this 9 square feet,with a minimum horizontal projection and width of 36 inches.The area of the window wiring when such wiring is served from a commercial source,and when primary power is 1/4 inch: 1)Perforated sheet metal plates not less than 0.070 inch thick. 2)Expanded sheet metal annular space shall not be required to meet the ASTM E 136 requirements.5)For the f reblocking well shall allow the emergency escape and rescue opening to be fully opened. Exception: The interrupted,shall receive power from a battery.Wiring shall be permanent and without a plates not less than 0.047 inch thick. 3)Cast-iron grill or grating. 4)Extruded bed-bearing brick of chimneys and fireplaces,see IRC Section R1003.19.6)Fireblocking of comices of a two-family ladder or steps required by IRC Section R310.2.1 shall be permitted to encroach a maximum of 6 disconnecting switch other than those required for ovemurrent protection.Smoke alarms shag be vents. 5)Hardware doth of 0.035 inch wire or heavier. 6)Corrosion-resistant wire mesh,with the dwelling is required at the line of dwelling unit separation.Fire blocking material shall be in inches Into the required dimensions of the window wag. IRC Sectlon R310.2.1: Window wells interconnected. Exceptions: 1)Smoke alarms shall be permitted to be battery operated when least dimension being 1/8 inch. Exception:The total area of ventilation openings shall be permitted accordance with IRC Section R302.11.1. with a vertical depth greater than 44 inches shall be equipped with a permanently affixed ladder or installed in buildings without commercial power.2)Interconnection and hard-wrong of smoke to be reduced to 1/1,500 of the under-floor area where the ground surface is covered with an steps useable with the window in the fully open position.Ladders or steps required by this section alarms in existing areas shall not be required where alterations or repairs do not result in the approved Class 1 vapor retarder material and the required openings are placed to provide cross UNDER-STAIR PROTECTION:IRC Section R302.7: Enclosed accessible space under stairs shall shall not be required to comply with IRC Sections R311.7 and R311.8.Ladders or rungs shall have removal of Interior wail or ceiling finishes exposing the structure,unless there is an attic.crawl ventilation of the space.The installation of operable louvers shall not be prohibited, have walls,under-stair surface and any soffits protected on the enclosed side with 1/24nch gypsum an inside width of at least 12 inches,shall project at least 3 Inches from the wall and shall be space or basement available which could provide access for hard-wiring and Interconnection ROOF VENTILATION:IRC Seaton R806.1. Enclosed attics and enclosed rafter spaces formed board. spaced not more than 18 inches on center vertically for the full height of the window well. without the removal of interior finishes. W � where ceilings are applied directly to the underside of roof rafters shall have cross ventilation for STAIRWAY WIDTH:IRC Section R311.7.1: Stairways shall not be less than 36 inches In clear WINDOW SILLS:IRC Section R612.2: In dwelling units,where the opening of an operable CARBON MONOXIDE ALARMS:IRC Section R315.1: For new construction,an approved carbon C each separate space be ventilating openings protected against the entrance of rain or snow. width at all points above the permitted handrail height and below the required headroom height. window is located more than 72 Inches above finished grade of surface below,the lowest part of the monoxide alarm shall be installed outside of each separate sleeping area In the immediate vicinity = > � Ventilation openings shall have a least dimension of 1/16 inch minimum and 114 Inch maximum. Handrails shall not project more than 4.5 Inches on either side of the stairway and the minimum clear opening of the window shall be a minimum of 24 inches above the finished floor of the room in of the bedrooms in dwelling units within which fuel-fired appliances are Installed and in dwelling N Ventilation openings having a least dimension larger than 1/4 Inch shall.be provided with dear width of the stairway at and below handrail height,Including treads and landings,shag not be which the window is located.Operable sections of windows shall not permit openings that allow units that have attached garages. IRC Section R315.2: Where work requiring a permit occurs in W Q co corrosion-resistant wire doth screening,hardware cloth,or similar material with.openings having a less than 31.5 Inches where a handrail is installed on one side and 27 Inches where handralls are passage of a flinch diameter sphere where such openings are located within 24 inches of the existing dwellings that have attached garages or in existing dwellings within which fuel-fired _0 CU M least dimension of 1/16 inch minimum and 1/4 inch maximum. Openings in roof framing members provided on both sides. Exception: The width of spiral stairways shall be in accordance with IRC finished floor. Exceptions: 1)Windows whose openings win not all a 4-Inch diameter sphere to appliances exist,carbon monoxide alarms shall be provided In accordance with Section R315.1. to shall conform to the requirements of Section R802.7. IRC Section R806.2. The total net free Secton Ri 1.7.9.1. pass through the opening when the opening is in its largest opened position.2)Openings that are IRC Section R315.3: Single station carbon monoxide alarms shall be listed as complying with UL ventilating area shall not be fess than 1/150 of the area of the space ventilated except that reduction provided with window fag prevention devices that comply with Section R612.3.3)Openings the are 2034 and shall be installed In accordance with this code and the manufacturers installation . of the total area to 11300 is permitted provided that at least 50 percent and not more than 80 percent STAIRWAY HEADROOM:IRC Section R311.7.2: The minimum headroom in all parts of the provided with fall prevention devices that comply with ASTM F2090.4)windows that are provided instructions. of the required ventilating area is provided by ventilators located in the upper portion of the space to stairway shall not be less than 6 feet 8 inches measured vertically from the sloped line adjoining the with opening limiting devices that comply with Section R612.4. (n ` be ventilated at least 3 feet above the Save or comics vents with the balance of the required tread nosing or from the floor surface of the landing or platform on that portion of the stairway. WATER HEATERS:IRC Section P2801.7: In seismic design categories D and lownhousas in = / �., ventilation pmvided at save or comics vents.As an alternative,the net free cross-ventilation area Exception: Where the nosings of treads at the side of a flight extend under the edge of a floor EMERGENCY ESCAPE AND RESCUE OPENINGS: IRC Section R310.1: Basements,habitable Seismic design category C.water heaters shall be anchored or strapped in the upper one-third(1 6) may be reduced to 1/300 when a Gass I or 11 vapor barrier is installed on the warm-in-winter side of opening through which the stair passes,the floor opening shall be allowed to project horizontally attics and every sleeping room shall have at least one operable emergency escape and rescue and in the lower one-third(1/3)of the appliance to resist a horizontal farce equal to one4hind(1/3) -0 r L the ceiling. IRC Section R806.3. Where save or cornice vents are installed,insulation shall not into the required headroom a maximum of 4-3/4 inches. opening.Such opening shall open directly Into a public street,public alley,yard or court.Where of the operating weight of the water heater,acting in any horizontal direction,or in accordance with block the free flow of air.A minimum of a troch space shall be provided between the insulation and basements contain one or more sleeping rooms,emergency egress and rescue openings shall be the manufachlrees recommendations.At the lower point,a minimum distance of 4 inches shall be -.f0 N > the roof sheathing and at the location of the vent. STAIRWAY TREADS AND RISERS:IRC Section R311.7.4.1: The maximum riser height shall be required in each sleeping room.Where emergency escape and rescue openings are provided they maintained above the controls with the strapping. IRC Section P2601.6: Water heaters having an v W 7-3/4 inches.The riser shall be measured vertically between leading edges of the adjacent treads. shall have a sill height of not more than 44 inches above the floor.Where a door opening having a ignition source shall be elevated such that the source of ignition is not less than 18 Inches above PROTECTION AGAINST DECAY:IRC Section R317.1 Location required. Protection of wood The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 threshold below the adjacent ground elevation serves as an emergency escape and rescue opening the garage floor. and wood based products from dewy shall be provided in the following locations by the use of inch. IRC Section R311.7.4.2: The minimum tread depth shall be 10 Inches.The tread depth and is provided with a bulkhead enclosure,the bulkhead enclosure shall comply with IRC Section naturally durable wood or wood that is preservative-treated In accordance with AWPA U1 for the shall be measured horizontally between the vertical planes of the foremost projection of adjacent R310.3.The net clear opening dimensions required by this section shall be obtained by the normal HAZARDOUS LOCATIONS(GLAZING): IRC Section R308.4: The following shall be considered species,product,preservative and end use.Preservatives shall be listed in Section 4 of AWPA U1. treads and at a right angle to the tread's leading edge.The greatest tread depth within any flight of operation of the emergency escape and rescue opening from the inside.Emergency escape and specific hazardous locations for the purposes of glazing: R308.4.1)Glazing in all fixed and 1)Wood joists or the bottom of a wood structural floor when closer than l 8 inches or wood girders stairs shall not exceed the smallest by more than 3/8 Inch.Consistently shaped winders at the rescue openings with a finished sill height below the adjacent ground elevation shall be provided operable panels of swinging,sliding and bdoid doors. Exceptions: 1)Glazed openings of a size when closer than 12 inches to the exposed ground in crawl spaces or unexcavated area located walkline shall be allowed within the same flight of stairs as rectangular treads and do not have to be with a window well in accordance with IRC Section R310.2 Emergency escape and rescue through which a 3-inch diameter sphere is unable to pass.2)Decorative glazing. R308.4.2) within the periphery of the building foundation. 2)All wood framing members that rest on concrete within 3/8 inch of the rectangular Dead depth.Winder treads shall have a minimum[mad depth of openings shall open directly into a public way,or to a yard or court that opens to a public way. Glazing in an Individual fixed or operable panel adjacent to a door where the nearest vertical edge is or masonry exterior foundation walls and are less than 8 inches from the exposed ground. 3)Sills 10 inches measured between the vertical planes of the foremost projection of adjacent treads at the Exception: Basements used only to house mechanical equipment and not exceeding total floor within a 24-inch arc of the door in a dosed position and whose bottom edge is less than 60 inches and sleepers on a concrete or masonry slab that is in direct contact with the ground unless intersections of the walkline.Winder treads shag have a minimum tread depth of 6Inches at any area of 200 square feel IRC Section R310.1.1: All emergency escape and rescue openings shall above the floor or walking surface. Exceptions: 1)Decorative glazing.2)When there s an separated from such slab by an impervious moisture barrier. 4)The ends of wood girders entering point within the dear width of the stair.Within any flight of stairs,the largest winder tread depth at have a minimum net dear opening of 5.7 square feet. Exception: Grade Poor openings shall intervening wall or other permanent barrier between the door and the glazing.3)Glazing in walls on exterior masonry or concrete walls having clearances of less than 0.5 inch on ops,sides and ends. the walkline shall not exceed the smallest winder tread by more than 3/8 Inch. have a minimum net dear opening of 5 square feet. IRC Section R310.1.2: The minimum net the latch side of and perpendicular to the plane of the door in a closed position.4)Glazing adjacent 5)Wood siding,sheathing and wall framing on the exterior of a building having a clearance of less clear opening height shall be 24 inches. IRC Section R310.1.3: The minimum net clear opening to a door where access through the door Is to a closet or storage area 3 feet or less in depth.5) than 6 inches from the ground or less than 2 inches measured vertically from concrete steps,porch STAIRWAY LANDINGS_IRC Section R311.7.5: There shall be a floor or landing at the top and width shall be 20 inches. IRC Section R310.1.4: Emergency escape and rescue openings shall Glazing that is adjacent to the fixed panel of patio doors. R308.4.3)Glazing in an Individual fixed slabs,patio slabs,and similar horizontal surfaces exposed to the weather. 6)Wood structural bottom of each stairway. Exception: A floor or landing is not required at the top of an interior be operational from the inside of the room without the use of keys,tools or special knowledge. or operable panel that meets all of the following conditions:3.1)The exposed area of an individual members supporting moisture-permeable floors or roofs that are exposed to the weather,such as flight of stairs,including stairs In an enclosed garage,provided a door does not swing over the pane is larger than 9 square feet;and 3.2)The bottom edge of the glazing is less than 18 inches concrete or masonry slabs,unless separated from such floors or roofs by an impervious moisture stairs. A flight of stairs shall not have a vertical rise larger than 12 feet between floor levels or WATER-RESISTANT GYPSUM BACKING BOARD: IRC Section R702.3.8: Gypsum board used above the floor;and 3.3)The top edge of the glazing is more than 36 Inches above the floor,and barter. 7)Wood furring strips or other wood framing members attached directly to the Interior of landings. The width of each landing shall not be less than the width of the stairway served.Every as a base or backer for adhesive application of ceramic lila or other nonabsorbent materlal shall 3.4)One or more walking surfaces ere within 36 inches,measured horizontally and in a straight line, exterior masonry walls or concrete walls below grade except where an approved vapor retarder Is landing shall have a minimum dimension of 36 inches measured in the direction of travel. conform with ASTM C630 or C1178.Use of water-resistant gypsum backing board shall be of the glazing. Exceptions: 1)Oewrelive glazing.2)When a horizontal mil Is Installed on the No. Remarks Date applied between the wall and the furring strips of framing members. IRC Section R319.1.1 Field permitted to be used on ceilings where framing spacing does not exceed 12 inches o.c.for X"thick accessible sides)of the glazing 34!0 38 Inches above the walking surface,The ran shall be treatn the ment Field-cut ends,notches and dolled holes ofpreservative-treated wood shall be treated STAIRWAY ILLUMINATION:IRC Section R303.8: All interior and exterior stairways shall be or 16 inches o.c.for 518"thick gypsum board.Water resistant gypsum wallboard shall not be capable of withstanding a horizontal load of 50 pounds per linear fool without contacting the glass - - in the field in accordance with AWPA M4, pmvided with a means to illuminate the stairs,including the landings and treads.Interior stairways installed over a vapor retarder,or on ceilings in a shower or tub compartment.Cut or exposed and be a minimum of 1-1/2 Inches in cross sectional height.3)Outboard panes in insulating glass shag be provided with an artificial light source located in the immediate vicinity of each landing of edges,including those at wall intersections,shall be sealed as recommended by the manufacturen units and other multiple glazed panels when the bottom edge of the glass is 25 feet or mom above FASTENERS:IRC Section R317.3.1:Fasteners for preservative-treated wood shall be of the stairway.For interior stairs the artificial light sources shall be capable of illuminating treads and IRC Section R702.3.8.1:Water-resistant gypsum backing board shall not be used where there will grade,a roof,walking surfaces or other horizontal[within 45 degrees of horizontal]surface adjacent hot-dipped zinc-coated galvanized steel,stainless steel,silicon bronze or copper.Coating types and landings to levels not less than 1 foot-candle(11 lux)measured at the writer of treads and landings. be direct exposure to water,or in areas subject to continuous high humidity. to the glass exterior. R308.4.4)All glazing in railings regardless of area or height above a walking weights for connectors in contact with preservative-treated wood shall be in accordance with the Exterior stairways shall be provided with an artificial light source located in the immediate vicinity of surface.Included are structural baluster panels and nonstructural ling panels. R308.4.5)Glazing connector manufacturers recommendations.In the absence of manufactumrs recommendations,a the top landing of the stairway.Exterior stairways providing access to a basement from the outside BATHTUB AND SHOWER SPACES:IRC Section R307.2: Bathtub and shower floors and walls in enclosures for or walls facing hot tubs,whirlpools,saunas,steam rooms,bathtubs and showers minimum of ASTM A 653 type G185 zinc-coated galvanized steel,or equivalent,shag be used. grade level shall be provided with an artificial light source located in the immediate vicinity of the above bathtubs with installed shower heads and in shower compartments shag be finished with a where the bottom exposed edge of the glazing Is less than 60 inches measured vertically above any Exceptions: 1)One-had-Inch diameter or greater steel bolts.2)Fasteners other than nails and bottom landing of the stairway. Exception: An artificial light source is not required at the top and nonabsorbent surface.Such wall surfaces shall extend to a height of not less than 6 feet above the standing or walking surface. Exceptions:Glazing that is more than 60 inches,measured timber rivets shall be permitted to be of mechanically deposited zinc-mated steel with waling bottom landing,provided an artificial light source is located directly over each stairway section. IRC floor. horizontally and in a straight line,from the waters edge of a hot tub,whlripool or bathtub. weights in accordance with ASTM B 695,Class 55,minimum. Section R303.6.1: Where lighting outlets are installed in interior stairways,there shall be a wall R308.4.6)Glazing in walls and fences adjacent to indoor and outdoor swimming pools,hot tubs and switch at each floor level to control the lighting outlet where the stairway has six or mom risers.The WEATHER.RESISTANT SHEATHING PAPER:_IRC Section R703.2:One layer of No.15 asphalt spas where the bottom edge of the glazing is less than 60 inches above a walking surface and COLUMNS AND POSTS:IRC Section R317.1.4.Wood columns shall be approved wood of natural illumination of exterior stairways shall be controlled from inside the dwelling unit. Exception: felt,fine from holes and breaks,complying with ASTM D226 for Type 1 felt or other approved within 60 inches,measured horizontally and in a straight line,of the water's edge.This shall apply I to dewy resistance or approved pressure-preservative-treated wood. Exceptions: 1)Columns Lights that are continuously illuminated or automatically controlled. water-resistive border shall be applied over studs or sheathing of all exterior wells.Such tett or single glazing and all panes in multiple glazing, R308.4.7)Glazing adjacent to stairways,landings exposed to the weather or in basements when supported by concrete piers or metal pedestals material shall be applied horizontally,with the upper layer lapped over the lower layer not less than and ramps within 36 inches horizontally of a walking surface when the exposed surface of the projecting 1 Inch above a concrete floor or 6 inches above exposed earth and the earth is covered HANDRAILS:IRC Section R311.7.7: Handrails shall be provided on at least one side of each 2 inches.Where joints occur,felt shall be lapped not less than 6 inches.The left or other approved glazing is less than 60 inches above the plane of the adjacent walking surface. Exceptions:1) Sheet Name: by an approved Impervious moisture barrier.2)Columns in enclosed crawl spews or unexcavated continuous ran of treads or Right with four or more risers. IRC Section R311.7.7.1: Handrail material shall be continuous to the top of walls and terminated at penetrations and building When a rail is installed on the accessible side(s)of the glazing 34 to 38 inches above the walking areas located within the periphery of the building when supported by a concrete pier or metal height measured vertically from the sloped plane adjoining the tread nosing,or finish surface of appendages in a manner to meet the requirements of the exterior wall envelope as described in surface.The rail shall be capable of withstanding a horizontal load of 50 pounds per linear foot pedestal at a height mom than 8 inches from exposed earth and the earth is covered by an ramp slope,shall be not less than 34 inches and not mom than 38 inches. Exceptions: 1)The Section R703.1. Exception:Omission of the water-resistive barrier is permitted In the following without contacting the glass and be a minimum of 1-1/2 inches In cross sectional height.2)The approved impervious moisture barrier. IRC Section R407.3: The columns shall be restrained to use of a volute,tumout or starting easing shall be allowed over the lowest tread.2)When handrail situations:1)In detached accessory buildings.2)Under exterior wall finish materials as permitted side of the stairway has a guardrail or handrail,including balusters on in-fill panels,mm with General Notes prevent lateral displacement at the bottom end.Wood columns shall not be less than 4 inches by 4 fittings a bendings are used to provide continuous transition from handrail to guardrail,or used at In Table R703.4.3 Under a erbacked stucco lath when the paper backing is an a roved P P�^g P a P Pe 9 pD Sections a solid wand R312 and the prone of the glass is more than w tines from the raging;or s inches.Steel columns shall not be less than 3-inch diameter Schedule 40 pipe manufactured in the start of a flight,the handrail height at the fittings a bendings shall be permitted o exceed the weather-resistive sheathing paper. 3)When a solid wall or panel extends from the plane of the adjacent walking surtaw to 34 inches to accordance with ASTM A 53 Grade B or approved equivalent. maximum height. IRC Section R311.7.7.2 Handrails for stairways shall be continuous for the full 36 inches above the walking surface and the construction at the top of that wait or panel is capable length of the flight,from a point directly above the top riser of the flight o a point directly above the FLASHING:IRC Section R703.8: Approved corrosion-resistant flashing shag be applied of withstanding the same horizontal load as a guard. R308.4.8)Glazing adjacent o stairways Scale: WOOD WALL FRAMING:IRC Sections 602.3.1: The size,height and spacing of studs shall be in lowest riser of the flight.Handrail ends shall be returned or shall terminate In newel posts or Safety shingle-fashion in such a manner to prevent entry of water Into wall cavity or penetration of water to within 60 inches horizontally of the bottom tread of a stairway In any direction when the exposed accordance with Table R602.3(5). Exceptions: 1)Utility grade studs shall not be spaced more terminals.Handrails adjacent to a wall shall have a space of not less than 1-1/2 inch between the the building structural framing components.The flashing shag extend to the surface of the exterior surface of the glazing is less than 60 inches above the nose of the tread. Exce tions:1 P )The side Project No: 12085 than 16 inches on center,shah not support more than a roof and calling,and shall not exceed 8 feet wall and the handrails. Exceptions: 1)Handrails shall be permitted to be Interrupted by a newel well finish.Approved corrosion-resistant flashings shall be installed at all of the following locations: of the stairway has a guardrail or handing,including balusters or in-fill panels,complying with in height for exterior welts and load-bearing walls or 10 feel for interior nonload-bearing walls,2) post at the tum. 2)The use of a volute,turnout,starting easing or starting newel shall be allowed 1)Exterior window and door openings.Flashing at exterior window and door openings shag extend Sections R311.7.6 and R312 and the plane of the glass Is more than 18 Inches from the railing;or Date: Jan 9 2013 Studs more than 10 feet in height which are in accordance with Table R602.3.1. IRC Section over the lowest tread. to the surface of the exterior wag finish or to the water-resistive barrier or subsequent drainage.2) 2)When a solid wall or panel extends from the plane of the adjacent walking surface to 34 inches to R602.3.2;Wood stud walls shall be capped with a double top plate installed to provide overlapping At the intersection of chimneys or other masonry construction with frame or stucco walls,with 36 inches above the walking surface and the construction at the top of that wall or panel is capable Drawn By: WJB at corners and intersections with bearing partitions.End Joints in top plates shall be onset at least 24 GUARDS:IRC Section R3i2.1: Guards shall be located along open-sided walking surfaces, projecting lips on both sides under stucco copings.3)Under and at the ends of masonry,wood or of withstanding the same horizontal load as a guard. Inches.Joints In plates need not occur over studs.Plates shall not be less than 2-Inches nominal including stairs,ramps and landings,that are located more than 30 Inches measured vertically to metal mpings and sills.4)Continuously above all projecting wood trim.5)Whom exterior porches, thickness and have a width at least equal to the width of the studs. IRC Section R602.3.4:Studs the floor or grade below at any point within 36 inches horizontally to the edge of the open side. decks or stairs attach to a Wall or floor assembly of wood-frame construction.6)Al wall and root Status: Submittal Set shall have a full bearing on a nominal 2-by or larger plate or sill having a width at least equal to the Insect screening shall not be considered as a guard. IRC Section R312.2; Required guards at Intersections.7)At built-in gutters.. width of the studs. open-sided walking surfaces,Including stairs,porches,balconies or landings.shall be not less than /� Ao s 36 inches high measured vertically above the adjacent walking surface,adjacent fixed seating or the line connecting the leading edges of the treads.