Metal Roof Condensation In Attic

When temperature and humidity conditions reach dew point moisture can condense on the underside of metal roofing and potentially cause water damage to the inside of your customer s building.

Metal roof condensation in attic.

Warm wet air rises and meets the cold roof and cools. Finding water damage on the wall or ceiling is worrying for any homeowner. This heat also affects the building materials used to construct the ceiling. Attics are much like an oven.

Line the attic. Good installation and ventilation means no condensation when installed on standard residential construction consisting of typical attic insulation proper and well functioning ventilation and roof decking metal roofs do not pose a condensation risk. Fixing this issue can be less costly than replacing a roof but it should be addressed as soon as possible. This video shows what a significant condensation problem can look like.

Inspect the house by looking for vents that flow into the attic such as bathroom and kitchen exhaust fans. Those drips from ceilings and surface moisture occur when warm air comes in contact with the cooler roofline or walls. If you are heating or cooling a building adding insulation would certainly be a good idea. Essentially condensation occurs at night when the temperature inside a building is warmer than outside.

Oftentimes people will insulate their metal roof with vinyl backed fiberglass insulation to prevent humid air from coming into contact with the cooler metal roof which may be at or below the dew point. Water found in these places is commonly caused by condensation in the attic. How to stop condensation on a metal roof step 1. Most people assume this is caused by a leaking roof but that might not be the source.

That excess moisture ends up as drops of condensation on the roof. As it cools it can t hold as much moisture. Sunlight heats the roof which raises the temperature of stagnant air in the attic.