Shingle Installation: the full procedure

Install starter, field, hip, and ridge shingles to the manufacturer’s nailing and exposure specification for a watertight, warrantable roof.

• Applies to: Crew
• Frequency: Per replacement / large repair
• Scope: Covers field shingle application per manufacturer instructions. Walkability/slope safety and any structural concern DEFER to OSHA fall-protection standards, a licensed roofer, and the safety plan; warranty terms follow the manufacturer.

What you need

• Starter strip
• Field shingles
• Hip/ridge cap
• Roofing nailer or hand nails
• Chalk line
• Utility knife with hook blades

The procedure, step by step

1. Install a true starter course — Apply a purpose-made starter strip at eaves and rakes so the sealant bonds at the edge; never substitute cut three-tab shingles, which leave the seal strip away from the edge and invite wind-driven rain (per NRCA).
2. Set the first course to the line — Align the first field course to the snapped control line, offset from the starter.
3. Nail to manufacturer spec — Drive the specified number of nails per shingle in the nail zone, flush (not over- or under-driven); fastener count and pattern follow the manufacturer and high-wind requirements.
4. Maintain offset and exposure — Keep the racking/offset pattern and exposure consistent course to course per the shingle’s instructions.
5. Cut and weave valleys — Detail valleys by the specified open or closed method, keeping fasteners clear of the valley center.
6. Work around penetrations — Integrate shingles with pipe boots, vents, and flashing so water sheds over, never under, the courses.
7. Install hip and ridge cap — Apply matching hip/ridge cap with the specified exposure and fastener placement, finishing into the prevailing wind.
8. Verify seal and alignment — Confirm courses are straight, exposure is uniform, and shingles are seating/sealing per the manufacturer.

Quality check before you finish

• True starter strip at all eaves and rakes (no cut three-tabs)
• Nail count, placement, and depth match manufacturer spec
• Exposure and offset consistent across the field
• Valleys detailed per specified method, fasteners clear of center
• Penetrations shed water over courses
• Hip/ridge cap exposure and direction correct
• No exposed or over-driven nails

This is a free, source-anchored standard operating procedure (SOP) you can print and hand to staff. It documents the work sequence for a Roofing business — not safety or regulatory rulings, which defer to the cited authorities, the applicable code, and your own health-and-safety plan. Open the tool above to print it, toggle ink-saver, or (with a free ToolFluency Business account) edit it to match your own workflow.

Sources

• GAF installer guidance (gaf.com)
• ARMA (asphaltroofing.org)
• NRCA (nrca.net)