Q. Can a new roof still leak during winter?
A. Yes. Even a properly installed roof can experience leaks during extreme winter conditions. Heavy snow accumulation and freeze–thaw cycles may cause ice buildup along roof edges or around skylights, which can force water beneath roofing materials. This condition is commonly referred to as ice damming.
A. Ice damming occurs when snow on the roof melts and refreezes near the roof edge. Over time, this creates a ridge of ice that blocks water from draining properly.
When additional snow melts, water may back up behind the ice and find its way beneath shingles or around roof penetrations.
Q. Why do leaks often happen around skylights in winter?
A. Skylights are roof penetrations and naturally collect snow and ice buildup around their edges. When heavy snow accumulates and melts, water may temporarily pool around the skylight flashing.
During freeze–thaw conditions, this can increase the risk of water backing up around the skylight area.
Q. Can attic condensation cause leaks?
A. Yes. During cold weather, warm air from inside the home can rise into the attic and condense on cold roof surfaces. This condensation may freeze and accumulate as frost beneath the roof deck.
When temperatures rise, the frost melts and may drip down, which can appear similar to a roof leak.
Q: What happens if my soffit vent is blocked with insulation or plywood, do I still need airflow in my attic?
A: Yes! proper airflow in the attic is crucial for maintaining a healthy and efficient home and blocked soffit vents can restrict ventilation, leading to moisture buildup, heat accumulation, and potential roof damage.