08/21/2026
Sorell Insulation | Why Baffles Matter
Small piece of the attic. Big job.
These are baffles — channels installed along the underside of the roof where it meets the soffits. Their job is simple: keep the airflow path open.
Your attic needs to breathe. Air comes in through the soffit vents, travels up along the roof deck, and exits near the peak. That flow keeps the attic dry, prevents moisture buildup, and helps stop ice dams from forming in winter.
The problem: blown-in insulation can drift into the soffits and choke off that airflow completely. Blocked soffits mean a sealed attic — and a sealed attic means trapped moisture, wet insulation, mould risk, and shingles cooking from underneath in the summer.
Baffles hold the channel open. Insulation goes deep, airflow stays clear, and both do their jobs without fighting each other.
Insulation without ventilation is only half the system. We install both, every time.
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