The Hidden Problem
How Proper Attic Ventilation Works
Real-World Correction Photos
Light Technical Section
Frequently Asked Questions
Why do ice dams happen?
Ice dams are usually caused by heat loss and poor attic ventilation. Warm attic air melts snow on the roof, which refreezes at colder overhangs and creates trapped ice and water backup.
Do ridge vents work without soffit vents?
No. Ridge vents need proper intake airflow from soffit vents to function correctly. Without intake, the system cannot properly cycle air through the attic.
What are baffles and why are they important?
Baffles keep insulation from blocking airflow at the soffits. They create an air channel that allows outside air to move properly from the soffit to the ridge vent.
Should bathroom fans vent into the attic or soffit?
No. Bathroom vents should discharge through the roof or properly designed exterior venting. Venting into attics or soffit areas can trap moisture and create mold and condensation issues.
Why do roof leaks often happen near flashing areas?
Most roof leaks occur at transitions, penetrations, chimneys, skylights, valleys, and wall flashing areas because tho
