How To Stop A Metal Roof From Sweating

Here s how to fight back against the enemy within.

How to stop a metal roof from sweating.

When the temperature of the roof is lower than the air inside the extra moisture in the air condenses on the underneath of the roof. The result is the roof sweating and dripping water all over your precious stuff. At night the thin metal in the roof quickly cools down. The impact of condensation in post frame buildings is very real.

If you are experiencing mold and mildew growth damp spots on your ceilings and walls or musty odors there is a good chance that your metal roof is not properly insulated. Metal roof insulation increases the temperature of the inside surface of the ceiling. Several factors can contribute to metal buildings sweating including the hvac system how your building gets used the use of space heaters or faulty construction. The lower the pitch of a metal shed roof and also the deeper the corrugations the worse the problem of metal roof sweating.

Condensation on metal roofs can be a problem once the weather starts to get cold. If you re wondering how to prevent condensation under a metal roof you re not alone. This in turn prevents moisture condensation on the metal roof. Traditionally condensation is managed by insulating the metal roof so that the panel temperature never reaches the dew point.

When wet warm air comes into contact with the colder walls or the roof line of metal structures sweating results. This is often accomplished using 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. It can lead to roof leaks even if rain has not occurred for several days. High levels of indoor humidity commonly cause condensation.

Condensation happens when moisture filled air contacts anything that is below the dew point temperature. A low roof pitch say 6 degrees or less means that as condensation collects it doesn t run down the roof slope it stays put until a drip forms which drops on to your stored belongings below.