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MATRIX OF RESPONSIBILITY OF<br />

THE ENGINEERING TEAM<br />

by<br />

Ir. Chen Thiam Leong<br />

Past President ACEM<br />

Kuching 31 st July 2010


WHO CONSTITUTE<br />

THE ENGINEERING TEAM ?<br />

The Building Industry players:-<br />

1. C & S <strong>team</strong><br />

2. M & E <strong>team</strong>


The Engineering Team Members<br />

• Qualified Person<br />

• Submitting Person<br />

• Design Engineer<br />

• Resident Engineer<br />

• Project Engineer<br />

• Clerk <strong>of</strong> Works<br />

• Main Contractor<br />

• Trade Contractors<br />

• Principal Submitting Person


MATRIX OF RESPONSIBILITY<br />

CCC or CFO or OP<br />

• Who is liable?<br />

• Who is responsible?<br />

• Who is accountable?


The Building Construction Matrix<br />

Design<br />

Engineer<br />

Engineering<br />

Assistant<br />

DESIGN STAGE<br />

Submitting Person<br />

IR<br />

Submit<br />

for<br />

Approval


The Building Construction Matrix<br />

Resident<br />

Engineer<br />

COWs<br />

CONSTRUCTION STAGE<br />

Submitting Person<br />

IR<br />

Main/Trade<br />

Contractors<br />

Sub<br />

Contractors


Liability?<br />

The Building Construction Matrix<br />

Accountability?<br />

POST CONSTRUCTION STAGE<br />

Resident<br />

Engineer<br />

COWs<br />

Submitting Person<br />

IR<br />

Main/Trade<br />

Contractors<br />

Responsibility?<br />

Accountability?<br />

Pr<strong>of</strong>essional<br />

Liability<br />

for Life<br />

Sub<br />

Contractors<br />

???


THE SUBMITTING PERSON<br />

• When does <strong>the</strong> <strong>responsibility</strong> and<br />

pr<strong>of</strong>essional liability begin? And end?<br />

Can it be for Design only ?<br />

Construction stage only ?<br />

What if Supervision is by O<strong>the</strong>rs ?<br />

Design NOT Supervise BUT sign CCC ?<br />

Any o<strong>the</strong>r permutations ?


CCC Master<br />

Flow-chart<br />

Submission to<br />

Technical depts<br />

R & D<br />

Street Lighting<br />

Landscape<br />

Liaise with<br />

Authorities to<br />

take over<br />

Planning Approved<br />

Pre-Comp Plan Approved<br />

Submission by<br />

AR/IR on Bldg Plan<br />

Planning Dept<br />

Structural Plan<br />

Sub-struct/Foundation<br />

Int Sanitary<br />

Issue CCC<br />

Passive Fire<br />

Int Water<br />

Active Fire<br />

Lift Etc<br />

Submission by IR<br />

for Infra Works<br />

Earthworks<br />

Ext Main Drains<br />

Ext Water Ret<br />

Sewerage Ret<br />

Ext Electrical Infra<br />

Telecommunication<br />

Completion <strong>of</strong> construction – certification by builder, tradesmen, IR, AR<br />

Liaise with<br />

Authorities to<br />

take over


Forms F’s and G’s<br />

• Form E replaced by Form F or F1<br />

• Forms G1 to G21- must be submitted toge<strong>the</strong>r<br />

with ei<strong>the</strong>r Form F or F1<br />

• Forms Gs serve to track those responsible,<br />

accountable and liable – THE MATRIX OF<br />

RESPONSIBILITY


“UNIFORM BUILDING BY-LAWS 1984<br />

FORM F<br />

CERTIFICATE OF COMPLETION AND COMPLIANCE<br />

[By -Law 25]<br />

To:<br />

*………………………………….<br />

Date:……………………..<br />

I hereby issue <strong>the</strong> Certificate <strong>of</strong> Completion and Compliance for <strong>the</strong> building/s<br />

on Lot/s………........ Section......……… Jalan...................................................<br />

upon being satisfied that it has been completed in accordance with approved<br />

plan No. ................. dated .......................<br />

I have supervised <strong>the</strong> erection and completion <strong>of</strong> <strong>the</strong> building/s and it is to <strong>the</strong><br />

best <strong>of</strong> my knowledge and belief that such work/s is/are in accordance with <strong>the</strong><br />

Act, Uniform Building By-laws 1984 and approved plans. I hereby certify that<br />

<strong>the</strong> building/s is/are safe and fit for occupation.<br />

……………………………………<br />

(Principal submitting person)


1. Particulars <strong>of</strong> principal submitting person<br />

Name : ………………….…………………………………………..<br />

Address: .……………..……………………………………………….<br />

**BAM/BEM Registration No. ……..............................……………..<br />

2. Copy to:<br />

(a) Local Authority : ...………………........................................<br />

(Name <strong>of</strong> Local Authority)<br />

(b) <strong>Board</strong> <strong>of</strong> Architects Malaysia (BAM)/<strong>Board</strong> <strong>of</strong> <strong>Engineers</strong><br />

Malaysia (BEM)<br />

* The developer, if it is for development o<strong>the</strong>r than individually built<br />

buildings or, <strong>the</strong> owner, if it is for an individually built building<br />

** Delete whichever is inapplicable.<br />

___________________________________________________”, and<br />

(c) by inserting after Form F <strong>the</strong> following forms:


UNIFORM BUILDING BY-LAWS 1984<br />

FORM G 1<br />

STAGE CERTIFICATION : EARTHWORKS<br />

(By-law 25 or 27)<br />

Project Title: .....................................................................<br />

*1. We certify that we have supervised and/or carried out <strong>the</strong> construction and<br />

completion <strong>of</strong> <strong>the</strong> earthworks and that to <strong>the</strong> best <strong>of</strong> our knowledge and belief<br />

such works are in accordance with <strong>the</strong> Approved Earthwork Plans Ref. No. :<br />

……………………….. and that we accept full <strong>responsibility</strong> for <strong>the</strong> same.<br />

Name (Individual) #Registration No. Signature<br />

(a) Contractor ............................ ........................... ....................<br />

(CIDB) (Date: )<br />

(b) Submitting person ............................ ........................... .....................<br />

(BEM) (Date: )<br />

I


UNIFORM BUILDING BY-LAWS 1984<br />

FORM G 4<br />

STAGE CERTIFICATION : STRUCTURAL<br />

(By-law 25 or 27)<br />

Project Title: .........................................................................<br />

* We certify that we have supervised and/or carried out <strong>the</strong> erection and<br />

completion <strong>of</strong> <strong>the</strong> structural works and that to <strong>the</strong> best <strong>of</strong> our knowledge and<br />

belief such works are in accordance with <strong>the</strong> Deposited Structural Plans Ref.<br />

No. : ................................. and that we accept full <strong>responsibility</strong> for <strong>the</strong> same.<br />

Name (Individual) #Registration No. Signature<br />

(a) Contractor ............................ ........................... ....................<br />

(CIDB) (Date: )<br />

(b) Submitting person ............................ ........................... .....................<br />

(BEM) (Date: )


UNIFORM BUILDING BY-LAWS 1984<br />

FORM G 5<br />

STAGE CERTIFICATION : INTERNAL WATER PLUMBING<br />

(By-law 25 or 27)<br />

Project Title: ...................................................................<br />

*1. We certify that we have supervised and/or carried out <strong>the</strong> erection and<br />

completion <strong>of</strong> <strong>the</strong> internal water plumbing works and that to <strong>the</strong> best <strong>of</strong> our<br />

knowledge and belief such works are in accordance with <strong>the</strong> *approved<br />

plans/Deposited Plans Ref. No. : ........................................... and that we<br />

accept full <strong>responsibility</strong> for <strong>the</strong> same.<br />

Name (Individual) #Registration No. Signature<br />

(a) Trade contractor ............................ ........................... .....................<br />

(Licensed plumber) +( ) (Date: )<br />

(b) Submitting Person ............................ ................................ .........................<br />

(*BAM/BEM) (Date: )


FORM F<br />

CERTIFICATE OF COMPLETION AND COMPLIANCE<br />

FORM F1<br />

PARTIAL CERTIFICATE OF COMPLETION AND<br />

COMPLIANCE<br />

FORM G 1 (Approved Plans)<br />

STAGE CERTIFICATION : EARTHWORKS<br />

FORM G 2 (Approved Plans)<br />

STAGE CERTIFICATION : SETTING OUT<br />

FORM G 3 (Deposited Plans)<br />

STAGE CERTIFICATION : FOUNDATIONS<br />

FORM G 4 (Deposited Plans)<br />

STAGE CERTIFICATION : STRUCTURAL


FORM G 5 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : INTERNAL WATER<br />

PLUMBING<br />

FORM G 6 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : INTERNAL SANITARY<br />

PLUMBING<br />

FORM G 7 (Submitting person’s Endorsed Plans)<br />

STAGE CERTIFICATION : INTERNAL ELECTRICAL<br />

FORM G 8 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : FIRE-FIGHTING (PASSIVE)<br />

FORM G 9 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : FIRE-FIGHTING (ACTIVE)<br />

FORM G 10 (Submitting person’s Endorsed Plans)<br />

STAGE CERTIFICATION : MECHANICAL VENTILATION


FORM G 11 (Submitting person’s Endorsed Plans)<br />

STAGE CERTIFICATION : LIFT/ESCALATOR<br />

INSTALLATION<br />

FORM G 12 (Approved Plans)<br />

STAGE CERTIFICATION : BUILDING<br />

FORM G 13 (Approved Plans)<br />

STAGE CERTIFICATION : EXTERNAL WATER SUPPLY<br />

SYSTEM<br />

FORM G 14 (Approved Plans)<br />

STAGE CERTIFICATION : SEWERAGE RETICULATION<br />

FORM G 15 (Approved Plans)<br />

STAGE CERTIFICATION : SEWERAGE TREATMENT<br />

PLANT<br />

FORM G 16 (Approved Plans)<br />

STAGE CERTIFICATION : EXTERNAL ELECTRICAL<br />

SUPPLY SYSTEM<br />

FORM G 17 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : ROAD AND DRAIN


FORM G 18 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : STREET LIGHTING<br />

FORM G 19 (Approved)<br />

STAGE CERTIFICATION : EXTERNAL MAIN DRAIN<br />

FORM G 20 (Approved/Deposited Plans)<br />

STAGE CERTIFICATION : TELECOMMUNICATION<br />

FORM G 21 (Approved)<br />

STAGE CERTIFICATION : LANDSCAPE


Building Services (M&E) Failures –<br />

“How extensive is this problem in<br />

Malaysia ?”


• Engineering Failures: Building Services<br />

engineers (M&E) are a lucky lot compared<br />

to <strong>the</strong>ir (C&S) brethrens<br />

• The fault <strong>of</strong> <strong>the</strong> engineer (be it <strong>the</strong> designer,<br />

installer or supervisor) can hardly be<br />

disputed when a landslide or building<br />

structure collapses<br />

• One and/or <strong>the</strong> o<strong>the</strong>r <strong>of</strong> <strong>the</strong>se relevant<br />

<strong>engineering</strong> pr<strong>of</strong>essionals will be held<br />

responsible and accountable<br />

• The call for someone’s head to roll is<br />

normally associated with such failures<br />

especially when <strong>the</strong>re are human fatalities<br />

• These failures are almost always visible and<br />

cannot be swept under <strong>the</strong> carpet


• Difficult and usually cumbersome, if not<br />

almost inconclusive to establish who is at<br />

fault when an M&E failure occurs<br />

• Only rarely is <strong>the</strong>re a fatality (or even<br />

casualty) and even <strong>the</strong>n it is more likely to<br />

be established to be due to human error<br />

(operational fault)<br />

• Therefore, it is not surprising to perceive<br />

that M&E failures are not prevalent,<br />

including in our local industry<br />

• Does not mean that <strong>the</strong> nation should be at<br />

ease with our track record because whilst<br />

injury and lives may not be at stake,<br />

unnecessary monetary losses can affect our<br />

national economy and progress


• Whenever <strong>the</strong>re is need to establish <strong>the</strong><br />

party responsible for a particular M&E<br />

failure, <strong>the</strong> end-user is “short-changed”<br />

• In recognizing <strong>the</strong> need to address this<br />

fundamental service to <strong>the</strong> community at<br />

large, <strong>the</strong> ACEM-IEM Panel <strong>of</strong> Experts was<br />

set up in 2000, which includes a register <strong>of</strong><br />

M&E experts side by side with C&S<br />

engineers


ENGINEERING FAILURES<br />

• Earliest tragic building industry failure in<br />

Malaysia: <strong>the</strong> 1968 collapse <strong>of</strong> <strong>the</strong> 4-Storey Jalan<br />

Raja Laut Flats in Kuala Lumpur, which<br />

contributed to <strong>the</strong> subsequent gazetting <strong>of</strong> UBBL<br />

1984<br />

• Most devastating ‘failure’ was undoubtedly <strong>the</strong><br />

Highland Towers tragedy in 2003<br />

• Both relate to C&S <strong>engineering</strong> failures with<br />

fatalities that led to wide spread media coverage<br />

and White Papers<br />

• O<strong>the</strong>r less ‘impactful’ failures are <strong>the</strong> Defence<br />

Bunker, MRR2, Matsushita bridge, ro<strong>of</strong><br />

structure collapses and so on<br />

• All <strong>the</strong>se C&S failures made it to <strong>the</strong> news since<br />

such failures are ra<strong>the</strong>r obvious and visible


• What about M&E failures ?<br />

• Building fires immediately come to mind, such as<br />

<strong>the</strong> Campbell Complex fire, <strong>the</strong> series <strong>of</strong> Subang<br />

Airport fires, <strong>the</strong> Bank Bumiputra fire, Bright<br />

Sparklers fire, UM Hall fire, and so on<br />

• However, none <strong>of</strong> <strong>the</strong>se are ever classified as M&E<br />

<strong>engineering</strong> failures but ra<strong>the</strong>r as purely fire<br />

incidents and “avoidable tragedies”<br />

• Next list: <strong>the</strong> ‘Hospital Mould’ fiasco, TNB Substation<br />

explosions, Elevator mishaps etc<br />

• Here again it is not conclusive to pin <strong>the</strong>se failures<br />

decisively on M&E <strong>engineering</strong> per se


• Therefore, it is true that M&E engineers tend to<br />

get away ra<strong>the</strong>r easily, especially when <strong>the</strong>re are<br />

no human casualties but merely financial<br />

setbacks<br />

• None<strong>the</strong>less, it cannot be disputed that <strong>the</strong>re<br />

have indeed been significant failures (or errors)<br />

attributed to M&E <strong>engineering</strong> in this country


LOCAL MODUS OPERANDI<br />

• In general, (potential) failures <strong>of</strong> M&E<br />

installations can occur during <strong>the</strong> following<br />

stages (or a combination) <strong>of</strong> <strong>the</strong> building<br />

construction industry;<br />

Design stage<br />

Supervision stage<br />

Installation stage (including procurement)<br />

Testing & Commissioning stage<br />

Operation stage<br />

Maintenance stage


EXAMPLES OF M&E<br />

FAILURES


DOWNCOMER PROBLEM<br />

• Lack <strong>of</strong> water pressure for fire fighting at<br />

topmost floor <strong>of</strong> an apartment block<br />

• When a fire broke out at <strong>the</strong> topmost floor <strong>of</strong> a<br />

20 storey apartment block, <strong>the</strong>re was<br />

insufficient water pressure at <strong>the</strong> landing valves<br />

to fight <strong>the</strong> fire although <strong>the</strong> Downcomer fire<br />

riser system was in proper working order


20 Storey<br />

Apartment<br />

Building<br />

10000gal<br />

Downcomer<br />

Water Tank<br />

on ro<strong>of</strong> top<br />

= 80m


• Was this a case <strong>of</strong> design fault ?<br />

• No, because UBBL ’84 (& SBO ’94), permits<br />

<strong>the</strong> installation <strong>of</strong> a Downcomer system instead<br />

<strong>of</strong> a pressurized Wet Riser system<br />

• This has resulted in <strong>the</strong> lack <strong>of</strong> adequate water<br />

pressure for <strong>the</strong> upper floors where it is most<br />

needed in times <strong>of</strong> emergency<br />

• (Note that with or without <strong>the</strong> Downcomer<br />

system, <strong>the</strong> lower floors can be easily served by<br />

<strong>the</strong> Fire Tender)<br />

• The industry will sooner than later need to<br />

address this issue for a permanent solution


20 Storey<br />

Apartment<br />

Building<br />

Hose Pressure<br />

75 psi<br />

only<br />

at 13F & below<br />

10000gal<br />

Downcomer<br />

Water Tank<br />

on ro<strong>of</strong> top<br />

>13F water<br />

Pressure<br />

NOT ok<br />


Fire sprinkler failure during a hotel fire<br />

• When a fire broke out on <strong>the</strong> upper floor <strong>of</strong> a<br />

high rise hotel, <strong>the</strong> sprinkler bulb broke but<br />

water only dripped out although <strong>the</strong> sprinkler<br />

pump was working<br />

• Clearly <strong>the</strong>re was insufficient water pressure and<br />

all fingers pointed to an under-sized sprinkler<br />

pump


• Subsequent investigation uncovered <strong>the</strong><br />

following embarrassment;<br />

– The hotel was designed with a 2-stage<br />

sprinkler pumping system and both designs<br />

are in compliance with <strong>the</strong> relevant codes and<br />

standards<br />

– The upper stage sprinkler pump was<br />

unfortunately connected to <strong>the</strong> lower stage<br />

sprinkler riser, and <strong>the</strong> lower stage pump to<br />

<strong>the</strong> upper stage riser, with <strong>the</strong> end result <strong>of</strong><br />

one being over-pressurised and <strong>the</strong> o<strong>the</strong>r<br />

under-pressurised


• There was no design error but ra<strong>the</strong>r <strong>the</strong> failure<br />

<strong>of</strong> proper supervision <strong>of</strong> installation and<br />

commissioning<br />

• Hopefully, such an error will never be repeated,<br />

and fortunately <strong>the</strong>re was no human casualty in<br />

this fire


Diners smelling like <strong>the</strong> food<br />

• Diners patronizing a 5-star restaurant<br />

complained that <strong>the</strong>ir expensive clothing smelled<br />

like <strong>the</strong> food <strong>the</strong>y ate<br />

• Such a problem is common with low-end shoplot<br />

type restaurants which are air-conditioned<br />

with low budget split units but certainly<br />

avoidable for high end restaurants with a<br />

properly designed air-conditioning and<br />

ventilation system


Split fan<br />

Coil unit<br />

Conditioned air recirculated<br />

No fresh air introduced


Supply air duct<br />

AHU / FCU<br />

Conditioned air recirculated<br />

with fresh air introduced<br />

Fresh air duct<br />

Return air


• The problem was traced to defective installation<br />

ra<strong>the</strong>r than <strong>the</strong> original design<br />

• In this instance, <strong>the</strong> resident project manager<br />

modified <strong>the</strong> design when encountered with<br />

space constraint to install <strong>the</strong> supply and exhaust<br />

fans<br />

• The lack <strong>of</strong> sufficient air-change resulted in <strong>the</strong><br />

‘undiluted’ recirculated conditioned air to be<br />

absorbed by <strong>the</strong> clothing <strong>of</strong> <strong>the</strong> patrons (toge<strong>the</strong>r<br />

with its odour)


exhaust<br />

Supply air duct<br />

AHU / FCU<br />

Conditioned air recirculated<br />

with fresh air introduced<br />

Fresh air duct<br />

Return air


BEM Circulars (13)<br />

• Submission <strong>of</strong> Plans by Architects, Pr<strong>of</strong>essional<br />

<strong>Engineers</strong> and Registered Building Draughtsmen<br />

• Supervision <strong>of</strong> Construction <strong>of</strong> Projects<br />

• A Guide to Good Engineering Practice for M&E<br />

<strong>Engineers</strong><br />

• Guidelines for An Engineer Taking Over The<br />

Work <strong>of</strong> Ano<strong>the</strong>r


END<br />

THANK YOU

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