Place the first screw.
Underside of metal roof.
No drips are formed.
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.
To understand what causes condensation we reached out to chris davis president of dripstop.
Chris explains that there are two important things to remember with condensation and they may seem somewhat counterintuitive.
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.
Then as the temperature inside and outside equalise the moisture is released.
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.