Sweating Roof Problems

But with proper design and maintenance principles you don t have to sweat roof condensation issues.

Sweating roof problems.

Primary hyperhidrosis may be at least partly hereditary. If excessive sweating has no underlying medical cause it s called primary hyperhidrosis. Roof condensation is a thorny but fairly common problem. Later designs such as the use of selectively permeable membranes are also not immune to the effects of roof vent loft condensation problems.

Picture a cloud of moisture floating overhead between the rafters. Metal roofs are known for this with condensation forming particularly at the beginning and end of a day. Although moisture problems in the roof assembly can be due to waterproofing deficiencies don t neglect the effect of condensation. Warm wet air rises and meets the cold roof and cools.

If your roof deck or insulation is developing water droplets chances are your forehead is too. Condensation happens when moisture filled air contacts anything that is below the dew point temperature. Essentially condensation occurs at night when the temperature inside a building is warmer than outside. Condensation on metal roofs can be a problem once the weather starts to get cold.

Although the use of the completely impermeable and the selectively porous roofing styles may cause roof condensation problems it is actually very important and somewhat indispensable. It happens when excess sweating is not triggered by a rise in temperature or physical activity. As it cools it can t hold as much moisture. That excess moisture ends up as drops of condensation on the roof.

If the excess sweating is due to an underlying medical condition it s called secondary hyperhidrosis. It can lead to roof leaks even if rain has not occurred for several days.