A new roof is an assembly, not just a new color. Plan the covering, the layers beneath it and the work that brings them together.
Replacement removes the worn covering and rebuilds the roof's water-shedding system. With a tear-off, the deck is exposed so damaged sections can be identified before new underlayment goes down. Eave and valley protection, flashings, edges and ventilation need to work with the selected covering.
A second covering over an existing roof retains the material and conditions beneath it. That makes the existing layers, deck, roof geometry and system requirements central to whether a recover is suitable. Tear-off provides access to the deck and existing transitions; it also adds removal and disposal work. The right scope follows the roof rather than a preference for the shortest installation.
Architectural asphalt shingles give a dimensional profile and a broad choice of colors. Their performance depends on correct fastening, a suitable deck and the surrounding water-management details. Impact-rated options are a product choice with specific tests; a rating isn't a guarantee against every hail event or automatic insurance savings.
Metal panels change the appearance and how the roof handles movement and attachments. Standing-seam and exposed-fastener systems have different details and maintenance needs. Valleys, penetrations, panel terminations and compatibility with nearby metals need deliberate design. Low-slope sections may need their own membrane system even when the main house uses shingles or metal.
The inspection and scope establish the existing layers, material choice and known roof details. Work is planned around access, removal and protecting the property while the roof is open. After tear-off, exposed decking is evaluated and necessary changes are addressed before the new assembly covers it.
Underlayment and flashings are installed with the covering's sequence so water flows over overlaps toward the eaves. Intake and exhaust ventilation need a working path through the roof assembly. Cleanup and removal are part of the work scope; schedule and warranty terms belong with the contractor performing the installation.
For planning, an October 2026 Kansas City metro architectural-shingle example places a 2,000-square-foot roof surface at $8,000-$12,000. It assumes one shingle layer removed, synthetic underlayment, eave and valley ice-and-water protection, needed flashing, ridge venting and haul-away. This is a regional planning scenario, not a quote for your roof.
The measured roof surface differs from the home's floor area. Steeper slopes, extra valleys, multiple removal layers and difficult access change labor. Deck repairs and different flashing or ventilation needs change scope. The calculator keeps those assumptions visible and the inspection establishes what applies to the actual property.
Use the roof cost calculator to change the supported architectural-shingle planning example.
Tell us where the property is and what you've noticed. A free roof inspection helps establish the next useful step for your roof.