Bubbling Ceiling Paint

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The ceiling paint in our living room has now bubbled in a second area. 1st bubbling happened about a year ago. I scraped, primed the area & painted 2 coats on entire ceiling about 3 months ago. Now about 10 feet away from 1st problem area, there is another section of bubbling. We live in a 1950 ranch. There is an attic with insulation above this living room which we checked and there is no moisture. Could the difference in temp. between the heated living room and unheated attic cause this? It had never happened before? Any suggestions on how to stop it from happening again?

2 Responses

  1. It is possible the temperature differences between the attic and living room is causing condensation. This is a typical problem with older homes that don't have a moisture barrier, heavy plastic film, between the sheetrock or plaster and the frame.

    Stopping this from happening isn't easy. Adding additional insulation to the attic might help. Also, maintaining higher temps in the room might prevent some condensation from forming.

  2. Yes, the difference in temperature between the heated living room and the unheated attic could be causing the bubbling in the ceiling paint. This phenomenon is known as thermal cycling, where the expansion and contraction of different materials due to varying temperatures lead to stress on the surface coatings, resulting in issues like paint bubbling. In this case, the warm air in the living room and the cooler air in the attic can create a temperature gradient that causes the paint to lift and bubble.

    To address this issue and prevent further bubbling, it is recommended to use a paint that is specifically designed to withstand thermal cycling. Additionally, ensuring proper ventilation and insulation in the attic can help to regulate temperature differentials and reduce the likelihood of paint problems recurring. Inspecting for any sources of moisture or leaks in the attic is also important, as water infiltration can exacerbate the issue. By taking these steps, you can mitigate the impact of temperature differentials on your ceiling paint and maintain a durable and aesthetically pleasing finish in your living room.

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