It is important to always use ridge venting.
These usually involve special proprietary pieces
or the use of commercially available ridge
Many vertical-seam products
are vented through the use of specially formed
closure strips that allow airflow between the
high ribs of the roof panels.
Eave soffit vents
are used for air intake. Many people have a
misconception that installing a metal roof
system increases the need for attic ventilation.
In fact, with conventional construction, attic
ventilation is critical regardless of the
A metal roof system does not
alter the need for proper attic ventilation.
The important thing to remember at all times
is that the cause of condensation is warm moist
air contacting a cool surface.
The goal of attic
ventilation is to eliminate the opportunity for
that to happen.
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