IN DESIGN
UBBL : PART VI
Constructional Requirements
e.g. site preparation, constructional materials, method of construction and, architectural and related Structural and M&E requirements [By-Laws Sections 81 - 132],
[UBBL SELANGOR Rev2012] By Law 81 [AMENDED]
Building Site shall be treated based on geotechnical techniques to MS1754 and MS1756.
[UBBL SELANGOR Rev2012] By Law 83 [AMENDED]
All slopes in and around buildings shall be protected against failure, monitored and maintained regularly.
[UBBL SELANGOR Rev2012] By Law 84 [AMENDED]
84(3) Change of definitions | omissions of “brick or masonry” | change “strip footing” to “foundation” and “timber” to “portion”
By Law 86 – PARTY WALLS
PARTY WALL = Wall forming part of a building to separate adjoining buildings belonging to different owners and constructed over or abutting common boundary | By Law 2
Party Walls, generally Thickness min200mm of solid masonry or insitu concrete except,
• Multi-Storey Flats and Terrace houses of reinforced concrete or protected steel framed construction min100mm thick of solid masonry or insitu concrete
• Single Storey may be load-bearing 100mm thick of solid masonry or insitu concrete provided it complies with Part V, VI & VII.
• Party Walls to be extended min230mm measured perpendicular above roof surface
[UBBL SELANGOR Rev2012] By Laws 86 & 87 DELETED
By Law 88 – RECESS in Party Walls or External Walls,
• Wall behind Recess min100mm thick in external walls & min200mm in party walls
• Side of Recess to the INNER FACE of a Return External Wall min300mm
[UBBL SELANGOR Rev2012] By Laws 88 [AMENDED]
MINIMUM thickness of external walls behind a RECESS shall be 100mm
By Law 89 - CHASES for SERVICES to leave wall min100mm thick in external & party walls and min200mm width.
[UBBL SELANGOR Rev2012] By Law 89 DELETED
[UBBL SELANGOR Rev2012] By Law 92 DELETED
By Law 93 – MEASUREMENT OF LENGTH OF WALL
• divided by return walls
• measured centre-to-centre of cross walls or piers
[UBBL SELANGOR Rev2012] By Law 93 [AMENDED]
Terms piers replaced with columns
[UBBL SELANGOR Rev2012] By Law 94 DELETED
By Law 95 – PROPERLY SECURE BRICK or BLOCK WALLS TO RC FRAMEWORK
• bond the wall panel to rc columns with a METAL TIE OF min 14gauge & min 40mm width and built min 230mm into brickwork with vertical spacing of less than 400mm.
• METAL TIES to be securely fixed to rc columns
By Law 97 - TIMBER BUILT INTO PARTY WALLS
• min100mm gap between timbers in party walls and separated with cement or brick
[UBBL SELANGOR Rev2012] By Law 97 DELETED
By Law 98 – FENCES AND BOUNDARY WALLS
between properties of Detached Units, except abutting roads and back lanes,
• ≤1.8m max solid walls and
• ≤2.75m max impervious to air and light walls
[UBBL SELANGOR Rev2012] By Law 99 [AMENDED]
99(1) Residential building which may be let separately shall be provided with a kitchen
99(2) Common vertical kitchen riser shall continue up to a mechanical floor or roof for discharge to the open and constructed to 2hr Fire Rating
[UBBL SELANGOR Rev2012] By Law 100 DELETED
By Laws 103 – 105 – TIMBER STRUCTURES
• Shall be hardwood or of wood species preservative treated
• Trimming joist 25mm thicker than adjoining joists
• Joists sit min 100mm on supporting walls or on continuous corbels
• Joists built into party walls with gaps min 100mm fire resisting materials separating from neighbours
• Below Ground Floor must be ventilated
[UBBL SELANGOR Rev2012] By Laws 103 & 104 DELETED
[UBBL SELANGOR Rev2012] By Law 104 SUBTITUTING By Law 140
FIRE APPLIANCES ACCESS
104(1) Provided ACCESS WAY within the site for FIRE APPLIANCES and ACCESS OPENINGS along external walls fronting the access way for FIRE FIGHTING and RESCUE OPERATIONS
104(2) BOMBA ACCESS WAY
• 6m min width for fire apliances
• Metalled or paved or strengthened perforated slabs to withstand 30ton fire appliances on level platform or gradient max 1:15. Access Road max 1:8.3. Access road to access openings must be clear of obstructions.
• Near edge of access way ≥ 2m or ≤ 10m from centre of access opening.
• Dead-End access way and access Road ≤ 46m long. If > 46m long, to be provided with a turning area. Outer Turning Radius of access to comply with Bomba.
• Overhead Clearance for fire appliances access ≥ 4.5m high
• Public Roads may be access way if in compliance with requirements of distance from access openings
104(3) ACCESS WAY MARKERS
104(4) PROPORTION OF BUILDING PERIMETER TO ACCESS WAY for Buildings in excess of 7,000m3
By Law 106 - Rules on STAIRCASES
• RISERS ≤180mm max & TREAD 255mm min.
To save on space BHA advocates ±170mm Risers & min 260mm Treads for fire stairs. However, 275mm Treads and slightly over 150mm Risers or about 29 degree incline would give a nicer to walk stairs.
Refer By Law 168 for Staircase Width requirements | Landing no less than stairs width
By Law 107 - Rules on HANDRAILS TO STAIRCASES
• min 4Risers stairs to have handrails,
• min 2225mm width stairs to have intermediate handrails spaced equally,
• min 1100mm width stairs to have handrails on both sides of staircase [non-residential]
• Handrails to be ≤100mm from face of walls,
• Stairs Handrail : 825mm = < Height < = 900mm, measured from Nosing Steps,
• Handrails Height at Landing min 900mm
[UBBL SELANGOR Rev2012] By Law 107 [AMENDED]
Dimensions for min 2225mm width stairs changed to min 2200mm
By Law 108 - MAXIMUM FLIGHT
• Residential - stairs landings of no less than 1.8m depth at max 4.25m height interval;
• Other Buildings – stairs of ≤16Risers between landings
• Stairs min 2Risers
By Law 109 – WINDING STAIRCASE
• Spiral Stairs permitted as secondary stairs where top floor ≤12.2m or not as required means of egress
[UBBL SELANGOR Rev2012] By Law 109 [AMENDED]
Winding and spiral stairs shall not form part of exit routes
By Law 110 – No OBSTRUCTIONS in staircase. No projections except handrails and overhead min 2m high.
By Law 111 – Stairs to be lit and ventilated properly
[UBBL SELANGOR Rev2012] By Law 111 [AMENDED]
All stairs shall be lit ≥100lux and ventilated to By Laws 198 – 200.
By Law 112 - Stairs in Shops accessed from street to be enclosed with incombustible material
By Law 113 – Timber Staircases only for buildings no more than 3-Storeys – Detached, Semi-Detached and Terraced Residential, Shophouse at upper floor only.
• All other staircases to have min 2hr Fire Resistant Rating.
By Laws 114 & 115 – Timber Roofs and Roof Covering & Drainage
[UBBL SELANGOR Rev2012] By Law 114 DELETED
By Law 116 – Accessible FLAT ROOF, BALCONY & ELEVATED AREAS min1.8m above adjacent area to be protected along edges with RAILINGS, PARAPETS or similar of min 1.0m height.
By Law 117 (1) – Provision of Access to Roof Space
[UBBL SELANGOR Rev2012] By Law 117(1) [AMENDED]
Access to roof space shall be via a trap door of minimum 600 x 600mm
By Law 117 (2) – Verandahway / footway to be constructed as per Local Councils specifications and to have a 25mm fall towards drain
By Laws 118 – 122 - REFUSE chutes & alternative means for refuse disposal for Residentials.
By Law 123 – Rules on Pipes and Service Ducts
[UBBL SELANGOR Rev2012] By Laws 118, 120 - 123 DELETED
By Law 124 - LIFTS
• Non-residential Buildings >4 storeys above or below ground to be provided with a lift.
Refer By Law 151 – Ventilation to Lift Shafts and By Law 243 – Fire Lifts
By Laws 125 – 132 - Public SWIMMING POOL requirements
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