Water intrusion occurs when moisture penetrates beneath the cedar roofing surface and enters underlying structural layers such as underlayment, decking, or insulation.
Because cedar roofs rely on overlapping materials rather than full sealing, they depend heavily on proper installation and maintenance to prevent water penetration.
Common causes include damaged shakes, failed flashing, clogged drainage areas, and deteriorated underlayment.
If left untreated, water intrusion can lead to rot, mold growth, structural weakening, and interior damage.
Early detection through inspections is critical for preventing widespread roofing failure.
