What size nails for shingle over ridge vent?

For installing shingles over a ridge vent, it's recommended to use 1 1/4-inch to 1 3/4-inch roofing nails. The nails should be long enough to securely penetrate both the shingle and the underlying roof deck, ensuring a tight seal. It's important to use galvanized or stainless steel nails to prevent rust and ensure durability. Always follow the manufacturer’s recommendations for the best results.