Metal Roof Sweating Problem

If the tin roof sits on top of another material such as wood then you can get a case of wood rot.

Metal roof sweating problem.

Frequent stress from coil slitting cutting and rollforming panels. As the air inside the building is heated it rises carrying moisture with it. Inadequate space allotted for thermal expanding and contracting of the panels. This video shows what a significant condensation problem can look like.

Essentially condensation occurs at night when the temperature inside a building is warmer than outside. Richard the problem you are describing is common with metal roof buildings in climates with high or mixed humidity with temperatures low enough to reach dew point. Condensation happens when moisture filled air contacts anything that is below the dew point temperature. Changes to the structure s original form that puts tension on or moves the panels.

The five key points to stop your metal roof sweating are good roof ventilation the key to getting condensation to evaporate is air flow. Condensation on metal roofs can be a problem once the weather starts to get cold. Those drips from ceilings and surface moisture occur when warm air comes in contact with the cooler roofline or walls. Metal tools go rusty fabric becomes mildewed there must be a way to solve this problem.

Metal gets cold faster than other items so condensation begins on metal first. Warm wet air rises and meets the cold roof and cools. As it cools it can t hold as much moisture. Having ventilation holes around the roof.

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 especially with a tin roof can cause serious problems when the metal sweats or rainwater collects under the tin panels. When this happens the tin roof can rust and even warp. Improper usage handling and storage by installers.

Picture a cloud of moisture floating overhead between the rafters. Roof pitch the lower the pitch of a metal shed roof and also the deeper the corrugations the worse the problem of.