They are both generally installed in the same way but.
How to install vents on a metal roof.
Beneath the roof eaves in the soffit is the standard place to install intake vents because it s the lowest spot in the roof.
It s made from a permeable material and is placed on top of the metal roofing panels at the ridge of the roof.
The other is a slatted vent that is located on the roof ridge.
Allow space for the edge of the vent opening where it will rest on the roof.
Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed.
A ridge vent is designed to allow air to flow freely from the attic.
Installing some type of ventilation mechanism on a metal roof is not a lot different from the addition of vents to any type of roof.
There are typically two types of metal roofing vents.
First are the cylindrical vents that are located within the metal panels.
When determining the placement of the roof vents measure the vent housing and mark off the space on the roof.
Remove the old roofing.
Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once.
Installing metal roofing vents will give the heated air a place to go.
The old still reliable method of venting the soffit.