A well-ventilated attic is critical to a comfortable home. 316 Insulation of Seattle properly ventilated attic allows hot, humid air to escape, drawing in cooler, drier air from the outside. Ventilation also reduces energy bills and extends the life of roof shingles. Poor attic ventilation, however, can lead to moisture problems in the living space below, such as wood rot and mold.

Ideally, the air in the attic should be moving freely through soffit vents and attic ridge vents, which are not blocked by insulation. If your attic is unfinished and used as living space, a ceiling fan can help improve ventilation, but only if the attic is properly insulated and sealed to prevent heat loss.

Attic Heat Loss Solutions

Incomplete attic insulation is a major cause of poor ventilation, as it keeps warm, moist air in the living spaces below and blocks the flow of cool outside air up through the attic. Insulation should be laid in between the rafters, with no gaps at the top of the attic and no bare attic floor. Never place insulation over gable or soffit vents and be careful not to block attic soffit and gable vents with attic floor heat blocking insulation or baffles.

316 Insulation of Seattle
2420 E Union St Seattle WA 98122
253-332-7606