Underside Of Metal Roof

This occurs when water molecules get trapped underneath between the panel and the insulation or underlayment which can cause the metal to weaken if not coated.

Underside of metal roof.

Then as the temperature inside and outside equalise the moisture is released. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. No drips are formed. Install the roofing screws vertically along each rib in the panel.

What causes condensation problems on the underside of metal roofs. Warm air holds more moisture than cold air. The final method of stoppoing a metal roof sweating is to bond an anti condensation layer on to the underside of the roof. Underside corrosion if the metal is improperly coated on the underside of the panel corrosion could take place.

When condensation starts to form on the underside of the roof it is absorbed by the fleece material. Chris explains that there are two important things to remember with condensation and they may seem somewhat counterintuitive.