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 Ask me anything abt Construction Industry!, Q&A

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TSiwubpreve
post Apr 26 2016, 09:30 AM

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QUOTE(kindaichitee @ Apr 10 2016, 06:46 PM)
Hi, i had viewed a Mah Sing project called Lakeville recently. The sales guy told me that this is commercial land but under HDA so it is consider as residential land and utilities follow residential land rate. I was confused as i thought utilities rate should follow the land title. Anyone can explain to me? Thanks.
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hi, the developer can request the authority to get them approve for using normal rate for residential.
TSiwubpreve
post Apr 26 2016, 09:40 AM

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QUOTE(IvanWong1989 @ Apr 21 2016, 11:50 PM)
Hi.

Want to know. In a multi block condo.  Will there be a risk if some blocks completed and get key.  While some blocks still in construction ?
Will the structure still be sound?

How to know they have done piling works.? Or if they start piling late will completed blocks be effected?
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for residential condominium, example XXX Condominium that consist of 3 block, it has to be complete the 3 block then only it will get the CCC (certificate of completion compliance). then VP will take place and u get the key. however in certain scenario partial completion could be allowed by authority.

I believe u talk about different project. just another block built at adjacent to the completed 1.

u will never know whether they done piling or not as u have no access to the drawing. ur management office do have a set of as built drawing copy. which mean what had been actually built would be recorded in the that set of drawing. and this case u just need to have faith they done the work thoroughly. just like having faith when u cross the green traffic light, opposite car won't against the red light and bang u. sweat.gif
TSiwubpreve
post Apr 26 2016, 09:46 AM

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QUOTE(chickenessence @ Apr 22 2016, 12:07 AM)
I m not capable of answering this. But quantity surveyor and Civil engineer should be able to help you.
In development, it is quite common to have phase by phase completion. So technically this can be done and not much issues.
But no one can guarantee things for sure.
There is also different types of piling that some will less** affect nearby building.

We also have dilapitation report, where we survey nearby existing building condition. If ex building has cracks the owner wont take advantage and blame it on the new development. However if previously no crack and because of piling work, new crack is found then they will be liable.

Also, have u heard of highland tower incident?
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highland tower case are more on construction work in slope / high ground. as per the finding of the court case, various of consultant didn't done the job well by discover the adjacent ground condition and etc. the design for the building to support itself is sufficient but the consideration of adjacent ground condition is not achieve.
TSiwubpreve
post Apr 26 2016, 09:50 AM

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QUOTE(IvanWong1989 @ Apr 22 2016, 11:58 AM)
Just wondering is it normal to have different building completed at different time. Haha
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I think when they going to do the piling work, if there are building close to the project they will use hydraulic jack piling method. more pricey method of driving the pile. it won't cause much vibration like usual hammering method.
TSiwubpreve
post Apr 26 2016, 09:59 AM

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QUOTE(leonard73 @ Apr 23 2016, 10:08 AM)
Normally will be around 4 to 6 mt. for steel bar.
Concrete, if my memory is good, you can simply estimated more o less about 25m3. And included varies of grade.
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QUOTE(pooglemoogle @ Apr 25 2016, 11:17 AM)
Thank you for your reply leonard73. In fact I just finished calculated it to be 4.9 Mt for steel bar. But my concrete is around 49 m3. With slab thickness around 115mm on average. Beams size on average is 200 x 450.
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for budgeting sake, client usually will use 150kg for every 1m3 of concrete. ur 4.9tonne should be the actual weight I suppose smile.gif
TSiwubpreve
post Apr 26 2016, 11:42 AM

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QUOTE(IvanWong1989 @ Apr 26 2016, 11:29 AM)
Nope. I'm talking about a XXX Condo that have 3 blocks and it will have one block completed later than the other two. Launching of the 3rd block is being delayed.

According to them, the first 2 blocks will be delivered as per schedule, but the 3rd block will be built up meanwhile.
They are using the space of the 3rd block to house their cement plant and etc.
I guess I have to have some faith. Haha. and hope they are not stupid/too greedy.
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that would be unusual if 3 block within same project. example the 3 block should be sharing the same facilities like gym room swimming pool etc. that facilities completed?
TSiwubpreve
post Apr 28 2016, 08:28 AM

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QUOTE(aurora97 @ Apr 26 2016, 01:49 PM)
@iwubpreve

Is there any professionals out there you can check defect liability? It's really a painful exercise.
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u mean as a purchaser checking defect while collecting key? that's solely up to purchaser sweat.gif if a purchaser can be fussy, any perfect house also have "defect". if he take out a 1.2m long aluminium hollow section as tool to check ur wall straightness, fail big time already laugh.gif
TSiwubpreve
post May 7 2016, 09:34 AM

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QUOTE(aurora97 @ Apr 28 2016, 04:32 PM)
I do agree, any house also got defect...

My first condo which VP recently had about 60+ defects (BCB). Whereas, Berjaya had 288+ defects. Sometimes, purchaser just don't know there is defect and just take key and gloss through.

What do you think is the right tool/method then to assess defects in the house/condo? (example floor, plaster ceiling, tiles etc...)
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first is water leaking. best if u collect ur key and inspect the unit after heavy rain. all the termination area between windows and wall, and also the wall facing outside can seen water mark if there are water seepage.

beside that u might like to see if the tile line is align with the wall.

next 1 try to check if the toilet floor whether they do laid in a fall. just spray the water on floor, if got big puddle of water mean the tile not lay to fall. (fall toward floor trap) check if ceiling at toilet got wet or not incase the top floor toilet waterproofing fail.

basic checking la.
TSiwubpreve
post May 21 2016, 08:40 AM

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QUOTE(ulala2 @ May 18 2016, 04:08 PM)
Please check your SPA, there is always a term that related to defects. In standard practice, upon received the defect list from you, developer have 45 days to rectify the defects. In the event the defects is not rectify after 45 days,

1) purchaser need to obtain a quotation from third party;
2) issue a letter to developer where your intended to rectify the defects yourself by enclose the quotation;
3) if no feedback from the developer with the specific period, you can proceed with the work and claim back from the developer.
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anyway, depend on the developer u purchased from. if those not competent 1, they rather wait u issue letter to them only proceed. after 2 months time? some dilemma here. especially that 2 months time u probably in the midst of ur own renovation.
TSiwubpreve
post Aug 11 2016, 06:28 PM

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QUOTE(kabyss87 @ May 23 2016, 03:40 PM)
Greetings iwubpreve

First of all, thank you for sharing your expertise with us! i've been following the thread since it was here and now i have a question of my own in need of your expert opinion  biggrin.gif

Alright, recently i've been in debate with a fellow friend on the basis of how to determine a project's construction progress.

He was telling me that, base on his observation, most apartments should averagely built up between 1 to 1 1/2 Floor per month for a 30+- floor apartment (Regardless of the building size)

IMO, i think it was a bit of layman to measure progress with that way. But that is the only visual confirmation we can get to check the progress of a project.

so my question will be, what is the proper basis the one can use (As a homeowner or construction personnel) to determine the construction progress?  hmm.gif

Thanks  thumbsup.gif  thumbsup.gif
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QUOTE(WahBiang @ May 29 2016, 07:14 PM)
Would love to know this as well... on average after piling, what is the duration required to complete one floor??

Say if using simple example, SPA mentioned 36 months to complete and total got 36 floors. With this, does it mean that on average that developer need to complete at least 1.5 floor per month so that at least have spare time say half year for painting, furnishing with window etc, garden?
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hi, sorry for "abandon" this thread for a while. tongue.gif

actually is like the chart below, i try to put a simple chart so u can understand better. below is a chart for structure work. so for a building, we use the plan view and divide into 2 zone, namely zone A & zone B. if bigger site will divide into more zone. so each floor we have zone A and zone B. so horizontal denote as weeks, vertical is level of building. sequence of work is like this, complete level 1 zone A, only move to level 1 zone B. it look like u need 4 week to complete a floor, but in fact every 2 weeks u complete a floor. reason is because u have 2 team of workers. 1 team only do zone A, another do zone B. so level 1 zone A complete, then they move to level 2 zone a. in construction time is money. so have to plan the work within schedule. the chart only display structure. imagine u have all work included, the chart would be very massive and complex. u have facade, architectural work etc and different work might have different sequence. average there would be about 40 trades of work in each project. imagine this chart show 1 trade, put 40 trade inside would be really complicated. but this is important because it help u to plan the work, and at the same time it can be as a reference of claiming extension of time etc.
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TSiwubpreve
post Aug 11 2016, 06:32 PM

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QUOTE(yi1993x3 @ Aug 7 2016, 05:12 AM)
Hello seniors,

I've heard that alot of consultants opt to become contractors after a few years of experience (M&E and C&S).

Is that really viable? cause from what I can see contractor themselves are quite specialized and consultants are lacking in site-experience (i.e. they dont know the lifetime of cement etc).

Also, can I know what is the average profit margin for contractors in residential projects? Does main-contractor earn more than sub-contractor in terms of % profit margin?

Thank you ! smile.gif
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main contractor have lesser margin compare to subcontractor.

let's say a subcontractor cost 1mil + 15% profit, he have 1.15mil of contract.

but contractor have 150 mil + 3% profit = 154.5 mil of contract.

also main contractor distribute the risk to subcontractor. main contractor no need much asset like machinery, equipment or material but subcontractor need to have those thing to operate their work. in conclusion, main contractor manage the work and earn the money while subcontractor need to own the machine to carry out the work and earn money.
TSiwubpreve
post Aug 15 2016, 09:11 AM

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QUOTE(kabyss87 @ Aug 11 2016, 11:59 PM)
more like a "holiday" instead of "abandon"..  biggrin.gif

Thanks for taking your time for the explanation... it also clarify the different section's height.

btw, from your experience, what would the normal progression of a 33 storey service apartment that is build on top of approximately 2 acres of land? by standard 1 storey in 2 weeks after completion of all the ground work and stuff..?
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how many units per floor? if u mean after ground work (substructure work i mean) complete, it take abt 24 months to complete a condo with 15 units x 1500 sqft per floor.

of course it could be varies depend on the complexity of building. and also things will happen in the midst of construction. like design changes or compliance issue and it will probably draw another few months.
TSiwubpreve
post Aug 15 2016, 09:19 AM

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QUOTE(yi1993x3 @ Aug 13 2016, 11:18 PM)
Thanks a lot dude ! Do you know how does a person start to become a main contractor? Like which company do they join before becoming a full-fledged independent main con.

I am a fresh grad working in a engineering consultancy firm at Malaysia, just started my job 2 weeks ago. I always feel that there's too much Ir. at Malaysia dont you think so? I feel like by the time I get my Ir. it's probably gonna be very common already.

On a side note, can I know what you did previously? You seem super knowledgeable.

Thanks a lot for answering ! smile.gif
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any profession in construction industry also have opportunity to be a main contractor. but u need to have capital, that is the most important things. cash flow is the crucial thing as a main contractor, need to play around it will. if ur cash flow got problem, that's quite risky as could be easily get wind up by other.

u can start of with consulting engineer and then u can become associate partner (which is partner of firm) from there on u can slowly move on to be a contractor. there are always short of competent engineer and it won't be common. market flooded with contractor. and contractor not an easy path, coz u need to compete with other contractor. u might want to have a higher profit margin but imagine ur competitor lower the price to get the job, what would u do? a contractor, u bid the project with high price, u can't get the job. u bid with low price, u might suffer loss at the end. is a dilemma to be a contractor.
TSiwubpreve
post Aug 17 2016, 05:49 PM

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QUOTE(kabyss87 @ Aug 17 2016, 03:37 PM)
Its about 27 units per floor. Ground work is completed, they are now building up the parking floors and was at 5th floor already.

Land clearing commenced at somewhere around October'15.

They did have the problem to keep all the raw materials and machinery as there is limited space at the site for storage.

IMHO, the parking floor  should be up pretty quick since it was not as complex as the rest? correct me if i'm wrong.

Thanks again for the reply  biggrin.gif
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on the contrary, lower floor take longer time. it considered podium and a lot of services would be commence at lower level. and also at the beginning lot of planning and coordination require hence take time. main contractor will incorporated all service into 1 drawing to ensure there are fit and no clashing / discrepancy happen.

also car park consist of ramp and also is a heavy loading structure. perhaps they might also do pre-stress concrete slab which also take time.

until the typical apartment unit, things getting faster as everyone familiar with the pace of the work and also typical floor generally is same so they will pick up progress from there biggrin.gif

is it normal condo? without special facade? should be within 2 years. from ground work biggrin.gif
TSiwubpreve
post Aug 22 2016, 04:42 PM

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QUOTE(WahBiang @ Aug 18 2016, 07:38 AM)
U mean 2yrs after done ground works?? Is it the same for those 3yrs and 4yrs SPA?? Heard nw even 5yrs!

But the way, it seems when most ppl talk about the built quality, we seems tends to look at developer instead of their main con, is this correct?

For eg Developer A may engage Main Con A, B and C for their Project A, B and C respectively, but will the quality be similar since they are done by diff main con?

Similarly, for Developer A, B, and C may engage Main ConĀ  A for their respective Project. But will the quality of these projects be similar since it is done by same main con?
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the years of course can be change. due to some project require longer. therefore when the developer sign SPA with u they will amend it and let u know that this would take more years. so at the end it is abt the agreement between buyer and seller.

as a purchaser, u only have contractual relationship with developer. so how the main con did, u only can complain to developer. of course as purchaser, if u know who is the main con it will help u determine well whether u wanna buy from them as u know which main contractor going to do the work.

the quality actually all depend on how the developer implement their quality plan against main contractor. if the developer is competent enough, different contractor will build the similar quality for project a,b, and c.

This post has been edited by iwubpreve: Aug 22 2016, 04:42 PM
TSiwubpreve
post Aug 23 2016, 12:46 AM

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QUOTE(WahBiang @ Aug 22 2016, 09:34 PM)
Thanks.
Indirectly, I cn interpretate that even same main con, the outcome could be diff as diff developer may hve diff QC criteria?
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depend 1. even developer not good but a responsible main contractor will do it. but it is like chicken and egg thing. so a responsible main contractor will usually be competent but their competent come with a price. so usually they are not the lowest bidder for the project. most of the time, developer wanna maximize profit so they will award to lowest bidder. u know a lot of main contractor that willing to throw the price in order to get the project. at least they need to take care for their company employee. so award to lowest bidder they will usually save cost and save a lot of work sweat.gif

in general u can't expect much if u pay lower price for property sweat.gif

but of course i did see some good developer (high end property) they really honour their purchaser. Selangor Dredging have a lot of come back purchaser. so even after defect liability period they still change the brand new kitchen cabinet to their purchaser. some purchaser take over unit after 2 years also didn't move in. so things spoil and they take initiative to rectify it for free. of course SDB properties is pricey sweat.gif
TSiwubpreve
post Sep 8 2016, 10:19 PM

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QUOTE(266K @ Sep 8 2016, 02:32 PM)
wanna ask sifu, at current economic situation, is it better to buy property fr big player rather than small time developer? is it true now most small developers get financial support fr bank before begin construction even not all units are sold?
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well, all developer do that including big developer. if company capable to get loan, why not? coz example u have 100mil cash. this is sufficient to build 1 high end condo. but why not u borrow another 1 billion to build 11 high end condo? biggrin.gif
TSiwubpreve
post Sep 14 2016, 11:47 AM

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QUOTE(266K @ Sep 14 2016, 11:06 AM)
thx sifu for explaining.. so now days housing project abandon half way, possibility shud be zero?  many years ago many projects were stopped half way, why so?
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still possible now. reason is because the developer no money to finance the job. say this project building cost 100mil and it have 200 units with 600k each unit which can sell 120 million. usually when certain amount of unit sold then they will start the project. say at the middle of project progressively it hit 50 million (progress 50%) while sales only hit 70 million, bank will release 70 million times progress 50% which is 35 million. if developer no cash then gg already. no money finance and need to declare insolvency. simple explanation.
TSiwubpreve
post Sep 14 2016, 05:40 PM

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QUOTE(266K @ Sep 14 2016, 05:29 PM)
that's why I asked if developer got support from bank to finish thier project if need arises fr ur example given.

If I am bank(s), developer come to me to borrow money for his project...I say ok u must sell this % unit before I support u to start building...sure dev wont start building if sell less than certain %...after hit target construction begin...those are most critical time when bank support needed most......if calculate correctly when sales target hit, dev shud not run out of money right...with bank support.?
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bank will not support developer. bank pay developer because the purchaser borrow money from bank for the unit they purchase. bank just release the money purchaser borrow to developer base on the progress % certified by architect.

so if fully sold then developer shouldn't have any issue. unless they have design issue, need to redesign and redo then that is other issue. cost overrun.
TSiwubpreve
post Sep 15 2016, 07:35 AM

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QUOTE(266K @ Sep 14 2016, 07:52 PM)
K, thx for ur explanation. U see I paid a booking fee for a low dense condo which is building in progress. It is a bumi rel unit, I no need to sign spa yet only after 80% completion then they will apply for conversion n spa follow. It is small time developer, first time building condo. I was attracted by the red clay bricks used in construction. To not cost overrun why they using red bricks?, brochure pun mentioned cement brick only.. luckily building is almost completed at roof now, 17 floors total. 144 units some 90+% sold, not sure true or not. I oso ask bro n sis consider buying but not sure if this is right decision bcos what if project stop next year I ll kena blame..
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that's good deal I guess. well, this can't be blame. cOz nobody can predict the future. u can't guaranty ur next iPhone 7 won't explode what sweat.gif



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