Roof Nails Sweating

Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing.

Roof nails sweating.

These nails will eventually rust. Spacer type panel edge clips are available from some manufacturers. Condensation is a common sign of inadequate insulation and or ventilation. Frost on nails in attic spaces may frighten you.

Sometimes you can spot this if you climb up into your attic on a cold night. Metal gets cold faster than other items so condensation begins on metal first. Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels. Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water.

Roof sheathing panel spacing hints. Frost on nails is frozen condensation. Condensation in the home a warning sign. Condensation is more apt to occur in climates where the average temperature is 35º f or colder.

Condensation happens when moisture filled air contacts anything that is below the dew point temperature. Although moisture problems in the roof assembly can be due to waterproofing deficiencies don t neglect the effect of condensation. Roof nail leaks can happen when roof nails have been loosened slightly from high winds or have simply pulled out over time. If shingles get lifted or torn from high winds the damaged shingle exposes nails holding the shingle below it.

And just one rusted out nail can cause your roof to leak every time it rains. It s important to realize frost is in your attic for a few reasons. Condensation is usually first noticed on your windows and skylights because they are the most visible areas of your house. But with proper design and maintenance principles you don t have to sweat roof condensation issues.

When the attic heats up a bit during the day the frost melts and drips then the nails frost up at night again and so on. If your roof deck or insulation is developing water droplets chances are your forehead is too. Moisture that escapes into the cold attic from the rooms below often condenses on cold nails. It should to a degree.