Allow space for the edge of the vent opening where it will rest on the roof.
Flat roof vent installation.
Just like any roof it is required that you have flat roof ventilation in order to allow fumes gases and airflow to correctly exit your home or other space.
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Roof vents need to be built tall for flat roofs because flat roofs drain water poorly and slowly compared to steep sloped roofs.
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Flat roof ventilation should be accomplished when you have equal amounts of air exhaust with air intake.
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Profile specific attic vents for tile roofing applications.
When determining the placement of the roof vents measure the vent housing and mark off the space on the roof.
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A roof vent installation kit will provide everything you need to vent your roof in one convenient package.
Attic vent for clay flat tile roofing.
A flat roof can sometimes be a challenge to bring adequate ventilation to.
Flat roofing requires a different type of vent then standard angled roofs.