Metal Roof Condensation In Attic

Essentially condensation occurs at night when the temperature inside a building is warmer than outside.

Metal roof condensation in attic.

This heat also affects the building materials used to construct the ceiling. 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. 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. Check for short circuits that may be causing moisture such as ceiling fans unsealed light fixtures and vent. How to stop condensation on a metal roof step 1. Finding water damage on the wall or ceiling is worrying for any homeowner.

Warm wet air rises and meets the cold roof and cools. Sunlight heats the roof which raises the temperature of stagnant air in the attic. As it cools it can t hold as much moisture. Picture a cloud of moisture floating overhead between the rafters.

If you are heating or cooling a building adding insulation would certainly be a good idea. Most people assume this is caused by a leaking roof but that might not be the source. Attics are much like an oven. That excess moisture ends up as drops of condensation on the roof.

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. Line the attic. A properly installed metal roof with a properly prepared attic can prevent condensation.