The answer to 'why is my roof decking damaged' is that the roof decking, which is the structural base layer of the roof, can become damaged due to a variety of factors. Common causes include water damage from roof leaks, rot from prolonged exposure to moisture, and structural issues like sagging or warping.
Symptoms of damaged roof decking may include visible signs of water stains, mold, or crumbling wood. In severe cases, the decking may feel spongy or uneven underfoot. If left untreated, damaged roof decking can lead to further deterioration of the roofing system and potential safety hazards.