Rusty Nails In Roof Vents

Over time your roof vent may become rusty.

Rusty nails in roof vents.

At the house eaves blocking was nailed between or against the ceiling joist ends. Our photo left illustrates a common construction practice on wood framed homes built in north america into the 1950 s. Roofing nails are galvanized but add enough moisture and galvanized nails. The nails might have popped.

Spot vents on lower roof slopes or power vent fans are not as good a substitute for the year round passive venting provided by a ridge vent. All of those things will add to the moisture in the attic and will rust any metal exposed there. The good thing to know is that some rust will not necessarily cause you to have the vent replaced. However they can cause leaks particularly if you have an asphalt shingle roof.

Check inside your attic for mold stains and rusty nails. When dealing with chemicals in products such as roofing cement and rust resistant primer and. Intake vents low at the roof s edge or in the soffit eaves along with exhaust vents high on the roof at or near the ridge. Roofing nails sticking up called nail pops might look like an unimportant issue.

This allows cool dry intake air. Another thing to check is weather or not something else is venting to the attic space that shouldn t be such as a dryer vent kitchen hood vent or bathroom exhaust fan. If you find this then you need to look further into improving your attic ventilation performance.