Condensation On Porcelain Tiles Caused By Concealed In-ceiling Ducted Air-conditioner Downstairs

[dream916 0]

My new apartment has porcelain tiles all over. All apartments here are fitted with concealed in-ceiling ducted aircon. My unit and the unit downstairs have the same layout as well as same aircon position.

I am seeing very bad condensation since my neighbor downstairs started using his aircon. My porcelain floor tiles below the concealed in-ceiling aircon duct is very cold. Puddle of water is formed on the floor tiles due to the condensation. It is certainly not caused by my aircon unit because it is not working. I am shock when I see it.

When I met up with the developer’s contractor, he said that he will switch off the aircon downstairs and try to diagnose the problem. I told him this is not the long-term solution because I don’t have the right to tell my neighbor to switch off his aircon every time the condensation problem surface. However, during our recently conversation, he said that everything is fine and told me not to worry.

I am no expert in this area because this is my first property. I would appreciate if someone could advise me on the following:

1) Why is my porcelain floor tiles cold when my neighbor downstairs switch on his aircon? Anyone encountered the same problem? Is it because the floor is not insulated properly?

2) How do I conduct a test to make sure that the condensation will not surface again? I want to make sure that the condensation problem has really been solved before I move in my furniture.

3) How would you handle this kind of defects with the developer?

I have to clarify that I am not against my neighbor downstairs. But rather, I want to find what is technically or structurally wrong.

I would appreciate your professional advice and solutions.

Thanks in advance.