Underside Of Metal Roof

When condensation starts to form on the underside of the roof it is absorbed by the fleece material.

Underside of metal roof.

Then as the temperature inside and outside equalise the moisture is released. 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. Warm air holds more moisture than cold air. What causes condensation problems on the underside of metal roofs.

Install the roofing screws vertically along each rib in the panel. Chris explains that there are two important things to remember with condensation and they may seem somewhat counterintuitive. To understand what causes condensation we reached out to chris davis president of dripstop. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.

Underside corrosion if the metal is improperly coated on the underside of the panel corrosion could take place. The final method of stoppoing a metal roof sweating is to bond an anti condensation layer on to the underside of the roof.