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Home My WebLink AboutCODE REVIEW SEC 2B - 99-00010 - Upper Valley Industries - AdditionCode review far: Project Id,, jp Dev . Workshop w/ other proposed addition Address... 15 North end East St. SECTION 4 2 U;e� 42J C.C.0v 5 :r DzRECTToN K-912=1 BOUNDARY Sen-aration wall EAST Property line SOUTH Separation wall Tn]EST Public wdv Allowable area increased -- Sec. 505. 1 FL NAME Y -Ir - SEPARATION AREA. INCREASE 0. 0 Fejt 120. 0 Feet 0. 0 Feet 114. 0 Feet 50.% for open OCC MAX FLR FIRE PRQTECTION 0. 0 Feet 12 0. 0 Feet 0.0 Feet X4, 5 Feet area on 2 sides . AREA ALLOWED RATIO STATUS 2 Office 2 Apartment or Condo TOTAL FOR FLOOR 1 Woodworking Area 1 Storage/Stock Room B R1 F1 S1 ok ok ok ok 2640 1800 4440 4238 2640 12000 3000 5415 12000 12000 0.22 '0.6 0.82 0.35 0.22 ok ok ok ok ok 1 Storage/Stock Room 1 Office TOTAL FOR FLOOR BUILDING TOTAL S1 B ok ok 3000 1800 11678 16118 12000 12000 12000 17 9 77 6.25 0. 0.97 0.9 15 ok ok ok ok The maximum allowed R1 area on the 2nd floor is 3004 sq.ft. unless the building is of 1 hour fire -resistance con.structian, -- Sec. 3.10.2.2 Rooms for kindergarten, 1st and 2nd grade children are not permitted an any f loor otherthin the 1st f loor , --- Sec. 305.2.3 Nate : They may be on the end floor if there are at least 2 emits directly to. the exterior for the exclusive use: of such occupants. -- enc. 2 The actual height of this building is 28. feet. The maximum height of the building is 40. feed. -- Tables 5-B Caere review far:. Project Ic1.. DeV, 7�ddress: 15 North Workshop w/ other proposed addition end East St, EXTERIOR WALL FIRE RATINGS AND OPENING PROTECTION Table 5-A NORTH AREA SE?A.RATION WALL - See requirements listed. later in this report. EAST For Occupancy S1 N F1 R1 SOUTH Bearing ing mall 0 hour 0 hour 0 hour a hour Non-Sear ing Wal I Wall 0 hour D hour 0 hour 0 hour Opening Construction Protection Material None None None None Any Any Any Any Parapet Required No AREA SEPARATION WALL - See requirements listed later in this report. WEST For Occupancy S1 B F1 R1 Bearing --Bearing Wal I D hour 0 hour 0 hour 0 hour Ton --Bearing mall 4 hour 0 dour a hour D hour Opening Construction Protection Material None None None None Any Any Any Any Parapet Required No No No No None -- No fire protection requirements for openings.. Code review Project Id.; Address: 15 for: Dev. North Page # 17 Workshop w/ other proposed addition 2nd East St . 3 /4 hour --- Openirigs are to be protected with 3/4 hr fire assemblies. 50o of the area of the wall maximum. -- Table 5-A, Footnote 5 & Seg. 5Q3.2.2 Maximum single window size is 84 sq.ft, with no dimension greater than 12 feet. -- Sec. 713.8 Not Allowed -- Openings are not permitted in this wall. (]THEA BUILDING ELEMENTS Table 6-A ELEMENT MATERIAL RATIi1TG NOTES Interior fearing wall Any Q hr Interior nonbrg wall Any D hr See Footnote #5 Structural Frame Any 0 hr Exterior Strutt Frame Any D hr See footnote #1 Shaft Enclosure ,Any 1 h r Floor/Ceiling Assembly Any p hr Roof /Ceiling Assembly any p hr Stairs Any Ione NOTE.- dee Section 711 for shaft enclosure exceptions. FOOTNOTES - 1} Elements in an exterior wall located where openings are not permitted or whereprotection of openings is required, shall be protected against external dire exposure as required tor exterior bearing walls or the structural frame, whichever is greater. -- Table 6-A, footnote 1 DRAFT STOPS: If there is stops shall exceed 1, x00 stops does n If there is stops shah exceed 3, 000 stops does n combustible be installed square fejt cat exceed 60 combustible be installed square f eet of exceed 60 construction in the floor/ceiling assembly, draft so that the area of concealed space does not and so that the horizontal dimension between feet. -- Sic. 708,.3.1-1.3 construction in the roof/ceiling assembly, draft so that the area of concealed space does not and so thatthe horizontal dimension between feet. -- Sec. 7U8.3.1.2.2 Code --L- e v ' e I%A Project Id. Address: 15 f or: Dev. North Page # 1�3 Workshop Jnr/ other proposed addition end East St. OCCUPANCY SEPARATIONS — Table 3-B SI -B Ohr S1 -F1 Ohr S1 -R1 3hr B -F1 Ohr B -R1 1hr F1 -R1 1hr HEATING EQUIPMENT SEPARATIC]N FOR 51 OCCUPANCY qh A 1 hr. occupancy boiler or central -- Sec* 302.5 FOR B OCCUPANCYO A I hr, occupancy boiler or central --- Sec. 302.5 FOR Fl OCCUPANCY: A 1 hr. occupancy boiler or central -- Sec. 3Q2.5 FOR R1 OCCUPANCY A I hr. 0 occupancy ]oiler or central. -- Sec. 302.5 exc. separation is heating unit separation is heating unit separationis heating unit separation is heating unit z ADDITIONAL SEPARATIONS: required around roomy containing a greater than 400,000 BTU input.. required around rooms containing a greater than 400,000 BTU input. required around roams containing a greater than 4 4 0, 0 0 0 BTU input. required around serving more than A refrigeration machinery room shall b of the building as required for an H7 horizontal occupancy separation may be area of the machinery room. Structural protected for the type of construction A 1 hour separation is required from a FOR Fl OCCUPANCY* Woodworking areas with a f loor separated from other areas by -- 'fable 3-B, footnote #6 rooms containing one unit . e separated from tie remainder occupancy regardless of area. A limited to the actual f loor supporting elements shall be manly. -- Sec. 2802 n S1 occupancy. area greater than 2,500 sq . f t . must be one hour occupancy separation construction. Code review Project Id.: Address: 15 far. -Dear. North Page 4 19 Workshop w/ other proposed addition end East St. FSR R1 OCCUPANCyo A 1 hr, accupancy separation is required around common storage and laundry rooms. -- Sec. 310.x.2 A 1 hr. fire separation 'is required between dwelling units. -- Sec. 310.2.2 SEC'T'ION # 2 EXIT REQUIREMENTS: FL NAME NUMB MIN MIN PANIC RATED TJJC}OR NOTES occ EXITS WIDTH HDWR CORRIDOR SWING 2 Office 26 1 0.4 � No No NIR ~92 �_��_`_ Apartment or Condo 9 1 0.2 No IVo NIR TOTAL 35 2 0.9No Yes I 1 Woodworking Area 21 1. 0.4 Na N� N/F� 1 Storage/Stock Room 9 1 0.2 No No NIR 1 storage/Stock Roam 10 1 U.2 N� No �fR I Office 18 1 0.3 Na No NIR 9 TOTAL 58 2 1.0 �'�io Yes Out Ratted corridors are to have 1 hr, fi and ceiling. -- Sec. 1Q05.7 re protection on both sides of walls Door Q�enings are required to be protected with 20 minute assemblies. -- Sec. 1005.8.1 Window openings are required to be protected with labeled 3/4 hour assemblies. -- Sec. 1005.8.2 Elevator opening into a rated corridor shall be provided with an elevator lobby at each floor containing a rated corridor. -- Sec. 1005.1.0 Walls and openings between the corridor and the elevator lobby are required to be per Sections 10p5.7 and 1005.8 above. In areas where 2 exits are required, the maximum diagonal of the area or When 2 exits are to go in either except for dead 1 required, exits f-� 11 1 the minimum separation is 1/2 of floor. -- pec. 1003.3 TilLl. 5 t be a r r a n r� r� c.--, f- 7-,r- �-j--L t -n,: L--Luaj srom any ends not exceeding CL L - point i n a Corridor to 20 feet in length,, it is possible a separate emit, Sec. 1005.5 Code review Project Id. Address: 15 for& D. Nom 'L---- h Workshop wI other proposed addition end East St. Exit signs are required from all areas where 2 or exits -- Sec. 1013.1 Mann exterior exit doors which obviously and clearly as exits need not be signed when apgroved. -- exc. 1 Door swing is based on Sec. 1004.2 except as noted. Occupant load factor is based on Table 10-A. are required. are identifiable i•...«;,u�..-� �.•.- nZ) ..,_Z> aSE;,u on '.L'c1o1e 1 V -A 2XC2pt as noted. Exit width is in feet and based on Sec. 1003.2. Wzri +- r.» rq +- -�, 4 r. +-.. L..-. tea; ___ a_ � _------ - � - - Lr� lYY ILAL1i �,� �.�, ,.�� u�u�ueu dpproxlmately equally among exits. Width shown for all areas is based an other emits. (0.2) Width shown for 1st floor is based on other exits. (0.2) Width shown for other flours & basements is based an stairways. For the minimum width of doors, see Sec. 1004.6 For the minimum width of corridors, see Sec, 1005,2 For the minimum width of stairways, see Sec, 1006.2 (0.3) FOOTNOTES: 9 } If this entire story has an automatic sprinkler system and an automatic smoke -detection system is installed within the corridor, and actuation of any detector shall activate warms is all areas served by the corridor,, the corridor need not be rated if the occupant load i,s less than 1�0. -- Sec. 1aa5.7 exc. 5 FLUSH AND SURFACE BOLTS: Manually operated edge or surface -mounted flush bolts and surface halts are prohibited. When automatic flush bolts are used, the door leaf having the automatic flush bolt shall not have a door knob or surfaces --mounted hardware,. The unlatching of any leaf shall not require more than one Qpmration. -- Sec. 10Q4.3 LOCKS AND LATCHES: All means of egress doors shall be readily from which egress is to be made without the knowledge or effort. -- Sec, 1004.3 apenable from the side use of a key or special - �GY- oL_Lny ndraware may be used on the main exit when the maim exit consists of a single door or pair of doors if there is a sign. stating THIS DOOR MUST REMAIN UNLOCKED DURING BUSINESS HOURS. When urt 1 nrkimr� aQor(s) must swing without operation of any latching device. exc, Code review Project Idl, 4P Address: 15 far: Dev. North Page ik 21 Workshop w/ other Proposed addition 2nd East St. STAIR NOTES : Public stairways 1) The rise of steps shall not be less than 4 inches or greater than 7 inches. The minimum run is 11 inches. The maximum variation is 3/8 inch in a flight of stars. -- Sec. J-006.3 2) The minimum width of a stairway is 36 inches, 44 inches if the occupant load is greater than 49. -- Sec, 1006.2 Also see exit table above to see if minimum width is greater than 44 inches. 3) Provide a handrail on both sides of stairway 34 to 38 'Inches above nosing. May be on one side of stairways less than 44 inches wide. -- Sec. 1006.9 & exception 1 4) Provide a guard rail where drop off is greater than 30 inches. -- Sec. 509.1 5) The minimum height is. 42 inches. Sec. 509.2 6) Open guardrails shall .ave intermediate rails or ornamental pattern such that a sphere 4 inches in diameter cannot pass through. -- Sec. 509.3 The triangular opening formed. at the riser, tread and guardrail may be 6 inches, -- 509.3 exc. 2 7 1 Th p rn 1 n 4 mi i in A the �.JAL -LUUM -J-� 0 L-Ee- 6 incnes. Such clearance shall be measured vertically from a plane parallel and tangent to the stairway tread nosing to the soffit above at all points, -- Sec. 1006.15 8) Enclosed usable space under the stairs is required to be protected as required for I hr. fire -resistive construction, -- Sec. 1006.12 ELEVATOR REQUIREMENTS: 1) When the elevator vertical travel is 25 feet or more, each associated elevator lobby or entrance area and associated machine rooms ci-ated shall be provided with an approved listed smoke detector for elevator recall purposes only, -- Sec. 3003.2 2 ) in building three or more stories in height, at least one elevator serving all floors shall accommodate a wheelchair. See the complete list of requirements in code book. -- Sec., 3003-4.1 3 Shafts (hoistways) haus ung elevators extending through more than two floor levels shall be vented to the outside. The area of the vent shall not be less than 3 1/2 percent of the area of the elevator shaftf provided a minimum of 3 square feet per elevator is provided. -- sec • 3004. Vents shall be capable of manual oner;zo-inn nl--)] tT Cade review Project Id.; Address.: 15 fir: rev. North Page # 2 2 Workshop w/ other proposed addition .end East ,5t . RAMP REQLTIREMEN'TS 1) The minimum width is 44 inches. If a ramp serves an occupant load of 49 or less, it may be 36 inches wide. If the ramp is serving a high occupant load, check exit table above for required width. __ Sec., 1007.2 2) Tf the ramp is part of the accessible route, the maximum slope is 1 : 12, A11 other ramps may have a slope of 1: 8 or less. -- ,Sec. 107.3 37 When the slope is greater than 1:15, landings shall be provided at the top, bottom and for each 5 feet of rise. Top landings and inter -mediate landings shall be at least 5 feet in the direction of travel. Landings at the bot-L,---om of ramps shall be at least 5 feet in the direction of travel, -- Sec. 1007.4 4) Handrails shall be per stair requirements. -- Seg, 1007.5 5) The surface shall be roughened or shall be of Slip -resistant materials. -- Sec. 1007.7 LANDINGS AT DOORS: 1} A floor or landing shall be provided on each side of doors, When access for persons with disabilities is required. the floor or landing shall not be more than 1I2 inch lower than the threshold. When access is not required, the maximum is 1 inch. --- Sec 0 4 .9 2) Landings shall have a width not less than the W1h of the stairway or width of the doorway, whichever is the greater, The minimum length in the direction of exit travel is 44 inches. -- Sec. 10Q4.10 TRAVEL DISTANCE The maximum travel distance in this building is 15Q feet. -- Sec. 1003.4 Cede review Project Id. Address: 15 for: Dev. North Workshop W/ other proposed addition 2nd East St. BUILDING ACCESSIBILITY: 1 ) This building including each tenant one entrance which complies with the 2} shad be provided with at least accessible route provisions of J - 1 . �L 1ec3SL bu percent accessible. -- Sec, 11Q3.2.3 of all entrances shall be vuuen more treat one exit is required from any accessible space, each accessible portion of the space shall be served hy not less than two accessible means of egress. -- Sec. 1104.3.1 3 } When an exit stairway is part of an accessible means of egress, the stairway shall have a dear width of not legs than 48 inches between the handrails. The stairway shall either incorporate an area of refuge within an enlarged story -level landing or shall be accessed from an area of refuge . -- Sec. 1104.1.2 The area of refuge shall have direct access to the stairway that serves ito -- Sec. 1104.2.1 4} Each area of refuge shall be, sized to accommodate one wheelchair space not less than 30 inches by 4$ inches for each 200 occupants, or portion thereof. -- Sec. 11Q4,2,3 5} If the area of refuge is not within the stairway, it shall be separated from the rest of the story by a smoke barrier having at least a one- hour fire -resistance rating. Smoke barriers shall extend to the roof or floor deck above. Doors shall be smoke and draft control assemblies with a rating not less than 20 minutes. -- Sec. 1104.2.4 5} Two-way communications are required. -i Sec. 11Q ,2.5 7} Each area must be identified by a sign stating AREA OF REFUGE and the international symbol of acces-I I s'b'l g) NOTE: Exit stairways in buildings protected throughout by an approved automatic sprinkler system are NST required to incorporate an area of refuge. -- Sec. 1104.x,2 exception #2 ROOFING REQUIRENtENTS: 1} The roofing o� this building is required to be Class C. -- Table 15-A 2} See section 15Q4 and ICSH research reports for requirements. Cade review project Id. . Address: 15 for: Dev. North Workshop w/ other proposed addition 2nd East St. AREA SEPARATION WALL REQUIREMENTS: 1) The area separation wall is required to be a 2 hr fire assembly. Openings are limited to 25 percent of the length of the wa11 and protected with a 1 1l2 hour assembly. -- Sec. 504.6-.2 2} If the building has a projection., 1 hr. protection is required on the exterior wall each side of the area separation wall equal to the depth of the projection . --� Sec. 504.6.3/ exceptionsIf the projection has a concealed space at the area separation, wall, the area separation wall must extend through the projection. 3) If the area separation wall terminates at an inside corner, see the article in 'Building Standards' Sep/Oct 1982 for requireme�.ts. 4} A 30 inch high parapet wall is required above the roofing, -- Sec.504.6.4 See exceptions for alternate protection at roof_ The faces shall be momcombustible for the uppermost 18 inches including counterflashing and coping materials. -- Sec. 504.G.5 AUTOMATIC SPRINKLER SYSTEMS If openings are not is floor area more sprinkler system is � minimum dimension opening in every 5 4 provided in each 50 feet of exterior wall or there than 75 feet from an exterior opening, an automatic required. -- Sec. 904.2.E Nate: openings shall have of 30 inches. There must be at least 20 sq.ft, of lineal feet of wall. An automatic Sprinkler floor area greater than If the building sprinkler system Residential or units and guest system is required in woodworking areas when the 2,500 sq.ft. -- Sec. 306.8 contains 16 or more dwelling is required. -- Sec. 9x4.2.$ quick -response room portions snits, an automatic standard sprinklers shall be used in dwelliong of the build-ing, STANDPIPE REQUIREMENTS 4 There is no requirement for a standpipe_ FOOTNOTES: -- Table 9-A Code review Project Id.: Address: 15 VENTILATION: for: Dev. North Page # 2 5 Workshop w/ other proposed addi�i�n 2nd East St. x11 arias Customarily occupied by humans shall be provided with ventilation by meaner of openabl e exterior openings with an area less than 1f20 of the dotal floor area or shall be provided with mechanically operated �r�r�fi; 1 a�; �n c, +______�riti natural of not a - --,Y,4G11L. ,DuCll �y�em sall be capable Of supplying a minimum of l5 cubic 7fejt per minute of outside air per occupant. -- Sec. 12a2.2. 1 WALL AND CEIL3NG FINISH 1) Tn3al1 and ceiling finish materials are required Sec, 8Q4.1 and Tale 8-B. 2) Carpeting on the ceiling is required to have a spread rating. --- Sec. 8D4.2 3} Textile wall coverings shall have Class I flame and shall be protected by automatic sprinklers acceptance criteria of U,B.C. Standard No, g,2 to cam,Ply with Class I spread. or meet -- Sec. INSULATION NOTES: 1) All insulation material including facings are required flame -spread rating of 25 or less and a maximum smoke unless it is in a concealed spare and the facing is in a wall or ceiling. -- Sec. 707.3 exc.2 2} Foam plastic insulations are required to be protected, ADDITIUNAL REQUIREMENTS: flame rating. the 805 to have density contact �- Sec. a of 450 with For S1 occupancy For B occupancy For F1 occupancy Equipment, machinery or appliances which generate finely divided combustibles waste or which use finely divided. comhustible materia!shal1 be equipped withan approved rnetho� of cflll�ction and removal. -- Sec. 345.$ 2602 Code review Project Id.: Address: 15 for: Dev. North Workshop w/ other proposed addition 2nd East St . For RI occupancy 1) Provide a window or door tc sleeping, -- Sec. 1204. The the exterior from every xoom used window must provide a clear u -L D.i sq. =t. , a clear height of 24 inches minimum), and of 2 0 inches (min I'MUM) Sec. 3 10. 4 for open area a clear width nil aua;ji-E� LoUlcis require exterior glazed openings equal to 1/10 or more of the flour area. Amin 10 sq, f t ,) --� sec. 12 03.2 3) All habitable rooms require an operable exterior openings equal 1/20 or more of the floor area. Amin 5 sq.ft.) -- Sec. 1203,3 4= Apartments - Provide a smoke detector in all sleeping rooms and having access to sleeping rooms. -- Sic. 31Q,9,1.4 5} Hotel/Model - Provide a smoke detector in the main room or each seeping roam. --- Sec. 310.9.1.5 6} The minimum ceiling in a habitable space is 7 kitchens, halls, and baths may have a ceiling -- Sec. 31Q.6.1 to feet 6 inches except height of 7 feet. Code review Project Id, Address: 15 for: Page # 2 7 Devo Workshop w/ other proposed addition North end East St . ACCESSIBLE FACILITIES: NOTE.- Except as noted, section numbers listed below are from CABD/ANSI A117.1 - 199Z WATER FOUNTAINS AND WATER COOLERS: At least 50 percent of drinking fountains, but not less than one, provided on every floor shall be accessible_ -- UBS Sec. 1105,4.1 Accessible units must coMply with the fallowing: 1 } Shout is to be within 36 inches of the floor, -- Sec, 4,15.2,1 2 } Spout arranged dor parallel approach sfiall be located 3 inc�-ies maximum from the front edge. Spouts of cantilevered units with knees and tom clearances shall be located 15 inches minimum from the vertical subpart and S inches maximum from the front edge. -- Sec. 4.15,2.2 3} Spouts shall provide a flow of water 4 inches height minimum. -- Sec. 4.15.x.3 4} Operable parts shall be located at or near the front edge of the unit and shall caMply with 4.25.4 -- Sec. 4.15.3 5} A cantilevered unit is required to extend 17 inches minimum from the vertical support. Clear knee space must provide a Clear area of 8 inches in depth at 27 inches high and 11 inches at 9 inches minimum above the floor. -- Sec. 4.15.4.1 6) Forward approach units shall comply with 4.2, Units in alcoves shall comply with 4.x.4.4. Units not having the necessary knee Cade review far : Project Id .: Dev. . Workshop w/ Address: 15 North 2nd fast St. is F -M nemg!� other proposed additian and toe clearance or clear space under them shall comply with 4.2.4 and have a clear floor space that allows a person in a wheelchair to make a parallel approach. -- Sec. 4.15,4.E TOILET FACILITIES l} A 64 inch diameter unobstructed turning space is required in the toiiet room. -- pec. 4.16.3. 4.2,3 & Fig. 84.2.3 2 } Water closet shall be mounted adjacent to a side wall or partition. The distances from the side wall or partition to the centerline of the water closet shall. be 18 in. Sec. 4.17.1 3 } tieVhen the accessible water closet is not in a stall The clear floor space shall be 48 in minimum in front of the water closet and 42 in from the center line of the water closet on the side not adjacent to the wall, -- Sec. 4.17.2 & Fig. X4.17.2 4} When theaccessible water closet is in a stall: The stall shall be 50 in wide minimum and 56 in deep minimum for wall hung water closets and 59 in deep minimum for floor mounted water closets,, --- Sec. 4.18.3.1 If the doter swings into the Mall, the required depth shall be increased. hy 3 6 inches minimum . -- Sec . 4.18.3o2 & Fig. B4. 18.3. 1 5 } The bars are to be 33 to 36 inches above the t1oor and shall he provided an the rear wall and on the side wall closest to Code review Project Id . Address: 15 for: Dev. North Page # 2 9 Workshop w/ other proposed addition 2nd East St. the water closet. -- Sec. 4. 24. 2.2 & Figs. 84. 17. 3, 84. 17 . 4 and B4.18.3. 1 ai side grab bar is required to start within 12 inches of the backwall and extend to 54 inches from the back wail. (The minimum length of the bar is 42 in) -- Sec.. 4_1'7,4,1 & Figs. B4.17.3 and B4.18.3.1 b} The rear bar shall be 24 in long minimum, centered on the water closet. Where spare permits, the bar shall be 36 in long minimum,with the additional length provided an the transfer side. -- ,Sec. 4.17,4.2 & Figs, B4.17.3, B4.17.4 and X4. 18.3, 1 6 j The tap of the seat on the water claret is required to be 17 to 19 inches above the floor, -- SSG. 4.17.3 & Fig. B4.17.3 7 ) Accessible urinals shall be of the Mall type or wall hung with the rim at 17 inches maximum above the floor. -- Sec. 4.19.2 8} A clew area of 30 X 48 inches minimum is required in front of the urinal. Privacy shields shall not extend beyond the front edge of the urinal rim, unless they are 30 inches apart minimum_ -- ,Sec. 4.19.3 9} Accessible lavatories shall he mounted with the rim 34 inches IP maximum above the floor and a clearance of 29 inches minimum from the floor to the bottom of the front edge of the apron.. -- Sec. 4.20.2-.1 & Fig. B4.20.3.1 l0} It shall extend 17 inches minimum from the wall. The clear knee space shall be 8 inches in depth minimum at 27 inches minimum above the floor and 11 inches in depth minimum at 9 in minimum above the f loor . The dip of the overf low shall be ignored when checking the clearances. -- Sec. 4.20.3.1 & Fig. 84.20.3.1 11) A clear floor spaces of 30 X 48 inches minimum shall be provided in front of the lavatory and shall extend 19 inches maximum under the lavatory-, -- Sec. 4.20.3.2 � Fig. B4.20.3.2 12} Water supply and drain pipes under lavatories shall be insulated or otherwise treated to protect against contact. -- Sec. 4.20.4 13) the bottom of mirror is required to be within 38 inches of the floor. --- Seg, 4.16,6 & Fig. B4.20.3.1