Roof decking is the wood or panel material beneath the visible roofing. Homeowners and contractors may also call it the roof deck. It forms the base that supports underlayment, shingles, and flashing components.
Why It Matters
New roofing materials need a sound surface. If decking is damaged or weak, the finished roof may not fasten correctly or perform as intended.
Common Problems
Problems include water-damaged decking, old plank gaps, soft areas, delaminated panels, and decking that has been weakened by long-term leaks or poor ventilation.
Exterior Echelon Notes
Exterior Echelon reviews decking condition during roof work and communicates when replacement decking is needed for a sound installation.