Rusty Nails In Attic

I found these signs in an attic today.

Rusty nails in attic.

To create rusty nails you can use hydrogen peroxide vinegar and salt to rust your nail or you can. Moisture causes metal components of the roof like nails to rust and potentially break which can lead to shingle loss. Power attic vents may be needed if humidity is too high in the attic. Is this a sign of poor ventilation in the winter.

Indications that your attic might have a ventilation problem include wet or compressed 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 at the roof edge. For instance rusty nails can add a rustic feeling to your interior decor or to an arts and crafts project. Usually rusty nails are something that people try to avoid but there are certain circumstances where you d want a nail to be rusty. These nails are rusting due to the living area heat breaching up through the ceilings and into the attic cavities during the winter months from inadequate insulation.

Roofing nails are galvanized but add enough moisture and galvanized nails will rust. Would this be mold starting at each nail site and is this black nails due to poor ventilation or old roof leaking at all the nail penetrations. Ive seen roof shingle nails get rusty due to poor ventilation as this attic had lousy ventilation but never black and the sheathing turn black around the nail. Once you have the humidity in your house under control repair the worst of the drywall nail pops apply a stain blocking primer to the walls and ceilings to cover the rust stains and topcoat with latex wall and ceiling paint.

Without consistent air flow in your attic moisture will linger and begin to rot the wood which can result in roof damage. Even if there are no added problems caused by improperly vented equipment moisture can penetrate into the attic space and begin the rusting process if the. The moisture caused by condensation on the inside of the attic can also rust things like plumbing heating and venting duct straps to rust and break. Roof is new 5 yrs over an old layer.

These same condensation points the roofing nails will often map exactly the drip stains found on the attic insulation or attic floor below each nail. All of those things will add to the moisture in the attic and will rust any metal exposed there. Check inside your attic for mold stains and rusty nails. As a last resort install a dehumidifier.