What a Complete Roof Replacement Should Include
- Tear-off: Removal of existing shingles and any previous layers down to the deck. Proper disposal of removed materials is included in a professional job.
- Deck inspection and repair: After tear-off, the deck (OSB or plywood sheathing) is inspected for rot, soft spots, and structural issues. Damaged sections should be replaced as part of the job.
- Underlayment: A synthetic or felt underlayment layer installed over the cleaned deck before shingles. This is a moisture barrier, not just a building code requirement.
- Ice and water shield: In cold climates, a self-adhering waterproof membrane at the eaves and valleys -- required by code in most northern states.
- Drip edge: Metal flashing installed at eaves and rakes to direct water away from the fascia. Should be replaced at every re-roof.
- Flashing: Step flashing, counter-flashing, valley metal, and pipe boot collars. New flashing should be installed or existing flashing inspected and re-sealed.
- Shingles: The visible surface material. Installation includes proper nailing per manufacturer spec (typically 4-6 nails per shingle).
- Ridge cap: Shingles or ridge vent cap installed at the peak. Ventilated ridge caps are standard in modern installs.
- Cleanup and haul-away: Nails and debris removed from the property, including around the foundation.
What Is Not Automatically Included
- New gutters or gutter guards (gutters are usually removed and reinstalled, but replacement is extra)
- Skylight replacement (roofing labor to re-flash a skylight is included, but the skylight unit itself is not)
- Chimney repairs (flashing around the chimney is included; masonry work is separate)
- Attic ventilation upgrades beyond what is in scope
- Fascia or soffit replacement (a common add-on if these are rotted)
What to Confirm in Your Contract
- Tear-off included vs. layer-over -- this matters significantly
- Deck replacement pricing: is it included per square or as a time-and-materials add-on?
- Ice and water shield: where and how much?
- Specific shingle product, manufacturer, line, and color
- Flashing: new installation or re-use of existing?
- Permit: who pulls it, and is the cost included?
- Payment schedule and final payment tied to inspection
Related: Roofing Contract Guide
Frequently Asked Questions
Is tear-off always included in a roof replacement?
Not automatically -- you need to confirm this in the contract. Some contractors quote over the existing shingles (a layer-over), which is cheaper upfront but hides deck problems, adds weight, and limits lifespan. A full tear-off and replacement of damaged decking is the proper approach for a complete replacement.
Does a roof replacement include gutters?
No, gutters are typically a separate scope of work and cost. However, roofers will usually reinstall existing gutters that were removed to access the roofline. New gutter installation or replacement is a separate contract item. Confirm in writing whether gutter removal and reinstallation is included.
How long does a full roof replacement take?
Most residential asphalt shingle replacements take 1-3 days for a standard single-family home. Complex roofs with many penetrations, steep pitches, or multiple stories take longer. Large slate or tile replacements can take a week or more. See our dedicated guide for more detail.
Find Help in Your City
Scope of work varies by contractor and project. Always confirm inclusions in writing before signing a contract. Consult a licensed roofing contractor for project-specific guidance.