Help! My Plastered Ceiling Is Falling Apart

[becks150 0]

Dear All,

Need some advice on my situation.

I am in the midst of renovating a 30 yr old 4 rm flat. My ceiling in the kitchen was recently plastered about a wk ago. When I went over to have a look, a portion bulged out and started to fall when I went probed it.

It seems like my contractor used inferior "cornice" plaster that was powdery and not suitable for wet areas like kitchen and toilets. He should have used chemical cement and put a layer of oil-based sealant. Is it true? When I approach my contractor, he insists that it was done correctly, to use the"cornice" plaster. And apparently, my ceiling will disintegrate with time due to the moisture content and if I inhale such powdery residues, I will get kidney stones. Pls advise.

Tks!

[S418hedp 0]

Dear All,

Need some advice on my situation.

I am in the midst of renovating a 30 yr old 4 rm flat. My ceiling in the kitchen was recently plastered about a wk ago. When I went over to have a look, a portion bulged out and started to fall when I went probed it.

It seems like my contractor used inferior "cornice" plaster that was powdery and not suitable for wet areas like kitchen and toilets. He should have used chemical cement and put a layer of oil-based sealant. Is it true? When I approach my contractor, he insists that it was done correctly, to use the"cornice" plaster. And apparently, my ceiling will disintegrate with time due to the moisture content and if I inhale such powdery residues, I will get kidney stones. Pls advise.

Tks!

Hi becks150

BCA recommends that a cement-sand plaster or a gypsum plaster is to be used for plastering.

http://www.bca.gov.sg/housing/sp/Renovatin...nterCeiling.htm

http://www.bca.gov.sg/housing/sp/Renovatin...PointerWall.htm

Two weeks back a HDB inspector happened to come over my resale unit to inspect some ceiling cracks and I asked his opinion on plastering kitchen, toilet and bathroom ceilings. He adviced me not to do it as the plaster layer being heavy and constantly exposed to higher humidity level will not last long in the kitchen and bathroom. He suggested that skim coating to applied instead.

In the contrary one of my potential contractors says that plastering kitchen, toilet and bathroom ceilings is fine. He also assured me that before actual painting; the plastered walls and ceilings will be coated with a sealer layer for 'sealing in' the plaster.

Have the contractor repaired your ceiling?

[jdanielsg 0]

ok let me start off live in Canada i am trying to hep my mother re-do her flat here. you nee to do you research online. If you do you will find you cannot apply plaster directly onto a painted surface just like that it will not last. ESP ceiling because HDB ceilings ESP old flats are known to have issues... to apply plaster onto a painted surface... depending how deep or thick the layer is gonna be..... you hae to waster blast the paint off... sand blast.... chemical peel.... wire brush or drill whatever u can think of to make a bondable surface... then treat the surfacewith a bonding agent.... this is not the same as a primer this is a special concrete type thing they brush on..... then if you have a huge issue here and the ceiling or wall layer is gonna be thick u have to apply concrete membrane drilled down this could be me non metallic or metal lath... do a google search.. a layer of slurry..... and then plaster over..... not as easy as contractors make it out to be.. why do they care after a few years any problem is your problem so... one must really do your research.

I did however do mine I found: reliancenami.com and when asking him about prep before plaster this is his response:

"In the wall plaster market, there are a few types of packing bags in different weight configurations. The common ones are 20 kg, 25 kg , 40kg and 50 kg. Wall plaster also comes in many grades and whiteness (common whiteness is 98% white). The Nami wall plaster is a superior grade of plaster for customers who are looking to avoid cracks, chipping ,peeling, bubbles ,fungus growth, spalding and other associated defects of plastering work. Such defects normally surfaced in common plasters after one year or two years if an additional protective coating is added to the initial base coat. Although the factory guarantee against the just mentioned defects in common plaster for a period of 10 years in China, I can only gaurantee for five years due to the high humidity in this SE Asian region.

The cost of a 20 kg bag common wall plaster can range from SGD 9.00 to SGD 13.00. The Nami Wall Plaster is priced from SGD16.00 per bag for orders above 500 bags to SGD18.00 for orders below 500 bags in 20kg packing.

Nami Wall Plaster main "ingredient" if I may coined this term, is stone or granite powder based. Due to its very fine nature, THERE IS NO NEED FOR YOU TO APPLY A BONDING AGENT, NO NEED TO KNOCK INTERMITTENT DENTS ON THE WALL TO ANCHOR THE WALL PLASTER, NO NEED TO DO ANY SANDING TO SMOOTHEN THE NEWLY APPLIED SURFACE, NO NEED TO WIRE BRUSH OR GRIND. YOU CAN APPLY THE NAMI WALL PLASTER DIRECTLY OVER THE PAINTWORK FOR WATER BASED PAINTS.

NAMI WALL PLASTER CAN BE USED ON CEMENT DRY WALLS AND GYPSUM BOARDS AS WELL AND EVEN PLYWOOD.

All these additional work cause additional money and pollution and in the end it is very messy for the occupant. The Nami wall plaster has no odour during the application , no dust during the application , no noise. This is on condition that the wall is fairly flat (HDB Flats Walls would be a benchmark). The Nami Wall Plaster is very resistant to wear eg, rubbing marks caused by swiveling office chairs in small conference rooms. This is due to the very hard structure of its stome based compound."

I want to believe him so, maybe I shall give it a go ?