The ceiling is not gypsum board, whether the downlight can be installed, or the original top surface

Gyplight for kitchen and bathroom ceilings is OK. However, if the bathroom and kitchen need to use gypsum board ceilings, waterproof gypsum board must be selected. Because ordinary gypsum board ceiling products are most afraid of moisture, the use effect of home decoration and bathroom is not good, and when used in kitchen ceilings, perennial smoke is easy to yellow. >>>More

There is no such material as waterproof drywall, so don't be fooled. Bathroom ceiling materials, the first choice is integrated ceiling, PVC floor, others can choose aluminum-plastic panels, etc.!

You must consider the load-bearing, otherwise the shed will collapse, you can consider using channel steel beams on both sides of the wall, and the gypsum board is fixed to the steel beam instead of being fixed to the iron roof. >>>More

The paint is very fast, you said that the scraping is glossy that is melamine, now it is rarely done so, generally after the ceiling fan ash (three times), and then brush the paint (one primer three times the topcoat). Putty is generally used in Nippon, and the labor cost is 13 yuan, which depends on the region, and it is not unified!! Hope it helps!!

As long as the top surface of the structure.

is strong enough to hit expansion bolts or. >>>More