Having vents in all elevations of the shed is an effective way of minimising metal roof sweating.
How to make a metal roof stop sweating.
The use of ceiling and floor fans improve conditions for evaporation to occur.
Air circulation and ventilation stagnant indoor air is the perfect environment for condensation to occur.
This will provide flow through ventilation at the point where the hottest air rises to.
You must have a vent at both ends not just one.
If there is no high level ventilation already installed install a 15cm ventilation grille at the highest point at each end of the eaves.
Insert a nail every six inches along the perimeter of the felt and every foot on the inside to secure it to the plywood.
The lower the pitch of a metal shed roof and also the deeper the corrugations the worse the problem of metal roof sweating.
Having ventilation holes around the roof at eaves level and in the gable walls allows moisture rich air to escape.
The key to getting condensation to evaporate is air flow.
The five key points to stop your metal roof sweating are.