Based on the requirement above, the total cost is rm7k..for L-box it depend on your ceiling height..if 9ft or less no need flat board at the middle..just skim coat the ceiling...L-box like the picture above...if u interested pls pm me..thanks

Ceiling height should be 11ft..

Woww...big house..no problem to do plaster ceiling and install the fan.

haha... ijan80, only a double storey link house (22'x75' - 2300sft)..

Hi Guys,

Have question regards plaster ceiling, hope sifu could give opinions. Thanks.

my new house comes with plain plaster ceiling 6 and 1/2 inches . Now the ceiling heigh left only 10ft.

Question: Can I do L-Box lighting just below the plain plaster ceiling? The vendor said the L-BOX will take up another 8 inches. No sure after adding the L-box will compromise the living room space.

Do i need to demolish the existing plaster ceiling before adding the L-box?

Adding the L-box to your existing plaster ceiling would make the edges of your room look lower as the L-box would sit on the perimeter of the room.
With regards to L-Box size 8" is normal, but how wide will your L-Box be? To give a nice look, 1.5-2ft width of the L-Box is sufficient but this differs according to preference and the design you have in mind.

With a 9ft + ceiling height, its is still ok. Have seen houses with 8ft ceilings.

Hi Adrianjc,

Thanks for you replied.

The size of my living room is 16ft x 40ft. If given mention the size of living room, what is the width of L-Box will be appropriated? How about having 2 L-Box on the living room??

I'll have to check what i'm using but if i'm not mistaken its between a 1.5-2ft wide L-Box.
2 L-Box in a living room no problem dude... As long as it matches your design.



This post has been edited by adrianjc: Nov 29 2011, 06:08 PM

Hi Guys,
Would like to ask you all some advice on plaster ceiling and wiring.

I buying a new double storey house from developer, the top floor already got plaster ceiling installed by developer and some simple fluorescent tube.

If i wanna install additional aircond point, water-heater point and install down-light in my master bedroom on the top floor,

Do i need to redo the entire plaster ceiling on the top floor?
or
It can be done by cutting some holes in the existing plaster ceiling then later re-plaster back?


Thanks...

Don't have to redo the entire plaster ceiling. They'll just cut the holes to install the downlights.
Not sure how the aircond and water heater points will affect your plaster ceiling but if you're referring to the embedding the wiring into the wall and the portion of the plaster ceiling that touches the wall... thats no problem either.

One thing you will have to do though is probably repaint the entire plaster ceiling once you're done. Hand prints tend to get left quite easily on plaster ceilings even if the hand is just slightly dirty.

@adrianjc
Yup, the aircond and water-heater point will be embedded into the wall and run above the plaster ceiling.

Thanks for the info as this is very helpful for me to plan the future renovation.

Just make sure they don't throw away the piece of the plaster ceiling that was cut out.

The plaster ceiling guy will need it to patch the hole.

thanks adrianjc.

i got another question, on the top floor there is only 1 manhole on top of the toilet and is pretty far away from the fuse box, above the ceiling of the fuse box is where all the wire run on top of the ceiling, is it necessary to make an additional manhole near the fuse box for easy access of future electrical wiring maintenance purposes?

Thanks...


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You don't need many manholes to access the ceiling. As long as the manhole can access all parts withing the ceiling, would be sufficient.

@kelvyn,
Thanks, maybe i should climb up the manhole to see how accessible is the manhole on top of the toilet.

Hi, anyone can gv opinion. My contractor doing a L-box light trough. My ceiling height is 9.2ft.
So he need to do a flat board which is 3" to cover the wiring on top. And 3" between the gap for the light through, and 2" for the height size L-box.(bottom)

My concern is 3" is tat enuf for the gap to let the t5 light effect come out?
I cant believe him anymore after some bad suggestion he offer me make me spend extra $$ to cover his fault.

Hope can get advise asap. Thanks

3" as in between the concrete ceiling to plaster ceiling? maybe too short for down light.

Light box usually have opening for 4" or more, you can ask plaster ceiling contractor to make the opening bigger. Mine is 4"

This post has been edited by weikee: Dec 27 2011, 08:25 AM

You can but it's not really necessary unless you want to pop-in and look at the fuse box every now and then, especially if your house is prone to tripping and that is a point which needs to be switched back on.

Otherwise the electrical guys are pretty adapt in walking around in your roof. It would makes things easier for you should anything happen in future and you need to access the fuse box. Maybe what you can do is get someone to check whether the fuse box area is suitable for people to climb into the roof as they'll need somewhere to grab and stand on close to the manhole.

If its suitable, maybe consider shifting the manhole from the toilet to the fusebox area. They should be able to reuse the manhole and also the cut out piece to patch back the old hole in the toilet.

---

Added on December 27, 2011, 11:33 amIf you're asking whether 3" is sufficient for the light in the L-box to shine out, yup it's sufficient. If you want to install down lights in future the ceiling is too low for down lights based on the 3" board being done to cover the wiring.

One thing to note though, 3" opening for your L-box will make it hard to change the bulbs, etc... in future as the gap would be quite close to the ceiling and can be a pain.

This post has been edited by adrianjc: Dec 29 2011, 06:43 AM

Sorry for tumpang thread. I am getting my Key coming january and looking into doing some renovation. Is a subsale property and already come with plaster ceilling. Anybody has any contact to recommend?

Is a condo unit with 1300sqft. I wonder if the existing plaster ceilling can be reuse and add a number of new downlight and fan point.

Thank you.

Should be able to reuse.
But get a few quotes.