Chris explains that there are two important things to remember with condensation and they may seem somewhat counterintuitive.
Underside of metal roof.
The final method of stoppoing a metal roof sweating is to bond an anti condensation layer on to the underside of the roof.
Then as the temperature inside and outside equalise the moisture is released.
When condensation starts to form on the underside of the roof it is absorbed by the fleece material.
Underside corrosion if the metal is improperly coated on the underside of the panel corrosion could take place.
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.
Place the first screw.
Install the roofing screws vertically along each rib in the panel.
To understand what causes condensation we reached out to chris davis president of dripstop.
What causes condensation problems on the underside of metal roofs.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.