Common problems in a plasterboard ceiling after a water leak

August 24, 2019

Here I present a series of common problems with which we can find after a water leak or a leak.
Fungi or mold inside a false ceiling due to a water leak

You have to be very attentive to be able to diagnose them since many times it is not possible to detect them because they are hidden in the plenum (air space between the roof of the floor and the false ceiling) and not to have hatches to access the interior of the ceiling. These types of problems are only detected when to repair the leak or the loss of water it is necessary to drill the false ceiling of Pladur or Plaster. It is at this time when we will take the opportunity to inspect the interior of the false ceiling.

Here we can see a clear example. The cause of the damage was a leak in the roof of the building on the false ceiling, all the water from the leak falling on the plasterboard. The dark spots that appear in the colored areas are the fungi produced by the excess humidity caused by the leak and possibly by the comfortable temperature (for the proliferation of fungi) produced by the spotlights embedded in the false ceiling.

Fungi on a suspended ceiling as a result of a leak.

In this other false ceiling we can see another colored area, this time orange. In it we see that due to excess moisture for a long period of time the plaster that was around the screws that bore more weight was undone, added to the weight of the water accumulated in the ceiling plenum during the filtration, made the plates give and they will separate from the metal structure that supports the roof. Creating a risk situation due to plaque detachment.

Plate detached from the screw as a result of water from a leak.

The corrective measure to solve these problems is to disassemble Pladur plates, check the metal support structure and reinforce it if necessary, replace new Pladur plates and finish the job with a joint treatment (plasterboard joint joints between plates with paper tape and joint paste). In this way we will keep the healthy part of the false ceiling, we will change the affected part. Saving on roof repair, generating less waste and maintaining quality levels.

A good solution to make periodic inspections or inspections inside the false ceilings is to place access hatches, also known as registration hatches. Placing a log on the roof that will go virtually unnoticed and with a single click we can open the roof and access inside.

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