Roofing Glossary

Ridge Board

The ridge board is the horizontal board running along the peak of a stick-framed roof that the tops of opposing rafters nail into. It ties the rafter pairs together and gives them a common nailing surface.

A ridge board is technically not a structural beam — in a properly framed roof with ceiling joists or collar ties preventing spread, the board carries little load itself. It is a nailing and alignment member. (A structural ridge beam, by contrast, is a load-carrying beam used in cathedral ceilings without ties — a different and heavier element.)

For homeowners, the ridge board matters mainly during structural work or inspections: a cracked or undersized ridge board, or rafters pulling away from it, signals framing distress worth a professional look.

Why It Matters

Ridge board problems are rare but serious — they indicate the roof's framing is moving. Any visible separation at the ridge from inside the attic deserves prompt structural evaluation.

Questions about your own roof? Request a free estimate or call Nucci Brothers Roofing at (301) 458-1003.