Secondly you really have two different roof types working here low slope or flat roofs and pitched roofs.
Why is ventilation of a low slope roof doubled.
2017 06 06 yolanda ferrandi said.
Enclosed attics and enclosed rafter spaces formed where ceilings are applied directly to the underside of roof rafters shall have cross ventilation for each separate space by ventilating openings protected against the entrance of rain or snow.
Section r806 roof ventilation r806 1 ventilation required.
Continuous or individual soffits.
Soffit vents are one of the most popular intake vent styles.
Reshingling a low slope roof and a few things not to do this article covers reshingling a low sloped roof and a few things you should avoid when shingling such a roof.
Can metal roofing be used on a low slope pitch roof.
Prevent or cure wind blown rain leaks at ridge vents on roofs question.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
How to vent a roof in high wind areas while stopping windblown rain leaks.
This attic space was typically vented via static air vents.
The roof design included an interstial space of 1 5 to 2 meters between the ceiling and roof deck.
For over generations multi residential flats buildings were constructed in north american with low slope roofs.
We have a low sloped roof over our carolina room which has a raised vent at the top of the roof and ther roof slopes down from the vent at both sides of the vent.
I have seen ventilated flat roofs but they are usually used in conjunction with attic spaces and you mentioned finished vaulted ceilings in your post.