Paint To Stop Condensation On Metal Roof Australia

Warm wet air rises and meets the cold roof and cools.

Paint to stop condensation on metal roof australia.

Condensation on metal roofs can be a problem once the weather starts to get cold. As it cools it can t hold as much moisture. Sta kool 8metal x is a tough white elastomeric roof coating that is formulated for exceptional bonding strength to metal roof surfaces. Essentially condensation occurs at night when the temperature inside a building is warmer than outside.

Condenstop is an effective and affordable solution to prevent condensation on metal roofing panels in containers and on tarps for trains trucks and tents. You need to apply a vapor retarder of some sort or add ventilation. Condensation happens when moisture filled air contacts anything that is below the dew point temperature. Metal roofs are known for this with condensation forming particularly at the beginning and end of a day.

It can lead to roof leaks even if rain has not occurred for several days. 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. Water vapour carried in the air then condenses on the colder surface of the roof sheet. Traditionally condensation is managed by insulating the metal roof so that the panel temperature never reaches the dew point.

To minimise the risk of water damage to ceilings or corrosion related to condensation under steel roof sheeting a vapour barrier should be provided under the sheeting to prevent contact between the moist air in the building and the roof sheeting. Metal gets cold faster than other items so condensation begins on metal first. The answer is a product called dr pstop which is a felt like material with a rubber backer that can be applied to the back side of metal panels that will trap the moisture as the condensation forms. Picture a cloud of moisture floating overhead between the rafters.