Rusty Nails In Roof Vents

Roofing nails are galvanized but add enough moisture and galvanized nails.

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. 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.

However they can cause leaks particularly if you have an asphalt shingle roof. Check inside your attic for mold stains and rusty nails. 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. Over time your roof vent may become rusty.

The good thing to know is that some rust will not necessarily cause you to have the vent replaced. When dealing with chemicals in products such as roofing cement and rust resistant primer and. Take a visual on all of your roof vents whether they are ridge vents or mushroom or static vents to see if it looks like they may be allowing precipitation in your attic. Roofing nails sticking up called nail pops might look like an unimportant issue.

This allows cool dry intake air. Insulation rusty nails or rust spots that dripped onto your insulation blackened plywood mold or mildew inside your attic curling or cracking shingles uneven snow melt and icicles. 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.