Attic Insulation - Mold in the Attic

Mold growth in the attic occurs in the summer when hot humid air enters through the soffit vents, raising the relative humidity in the attic. In the winter, it occurs as warm conditioned air escapes from your living space into your unconditioned attic and meets the cold roof deck where condensation occurs. Signs of condensation or moisture in your attic can be recognized by rusty nails or staining on the roof deck. If you don't go in your attic, some symptoms you may notice in your home are high energy bills, uncomfortable rooms, uneven temperatures, or your HVAC running frequently. While these symptoms don't always mean that you have mold in your attic, they do tell us that you are likely losing conditioned air to your attic.