Nails From Attic Is Normal

Nail pops are largely due to wood or drywall movement and often appear within a year of construction.

Nails from attic is normal.

This exact same process is happening in your attic during extreme cold weather. You see this same thing happen in summer months when you place a glass of cold water or a can of cold soda or beer on an outdoor table. Your contractor is correct in his interpretation of the national roofing contractors association standards as well as the ohio building code which state that nails must be long enough to penetrate through all roofing materials and extend through the underside of the deck or penetrate a wood plank by of an inch even if that surface is less than inch thick. The condensation is caused by warm air leaking through the insulation between the top floor and the attic.

The air in the attic has water in it and it condenses on the cold metal. The best solution for controlling moisture is at its source. Nail abnormalities can result from injuries. You need much more ventilation in.

As you age you may develop vertical ridges or your nails may be a bit more brittle. The nails that you see in your attic get as cold as the outdoor temperature. This is why you see the frost. Lumber used to build houses may contain moisture which is often absorbed from humidity in the.

Normal healthy nails appear smooth and have consistent coloring. When you see water and ice on the nails the actual temperature of the nails is at or below the dew point of the air in the attic that is saturated with water vapor. If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help. A moist attic means moist insulation and moist insulation is less effective.

The nails sticking through the roof sheathing is normal. If you have a friend in the attic ask him to direct you to a sturdy spot where the nail can bite into the wood. A point often overlooked is that since it s winter the water freezes on the cold nails.