Roofs with good drainage require a less tightly sealed building envelope.
Skillion roof with eaves.
1 skillion eave vented soffit w1131 1 skillion eave vented fascia.
Some units have plastic or metal corrugated panels used as an overlapping roof.
Ventilating the roof cavity in this way will ensure that internal moisture is greatly reduced in the roof cavity which safeguards the roof from damp mould and structural decay.
The skillion roof is a distinctive roof consisting only one isolated unvarying surface.
Skillion roofs tend to be fairly steeply pitched which allows water to run off more effectively than on flatter roofs.
For this reason the rubber skins or roofing membranes that are necessary on flat or low pitched roofs may be done away with.