Roof Tear-Off Cost Calculator

Roof tear-off — stripping the old roofing down to the bare deck — typically costs $1 to $5 per square foot, so removing a 2,000 sq ft roof usually runs about $2,000 to $6,000 on its own. The price is driven mainly by the roofing material being removed (lightweight asphalt shingles are cheapest at ~$1.50/sq ft; heavy tile is the most at ~$3.50/sq ft because it's stripped piece by piece and costs more to haul), the number of existing layers (each extra layer adds a lot of labor and disposal weight), the roof pitch (steep roofs need safety staging), and whether the deck underneath needs repair once it's exposed. Heavy materials, multiple layers, steep roofs, and rotted decking push you toward the high end. A ~$500 job minimum applies. Tear-off is often bundled into a full replacement but can be quoted separately — enter your roof above for a localized estimate.

A roof tear-off is the removal of all existing roofing — shingles, tiles, shakes, or panels, plus the old underlayment — down to the bare roof deck (the plywood or board sheathing). It's done so a new roof can be installed on a clean, sound, flat surface, and so the deck can be inspected and repaired. Tearing off matters because it lets the roofer find and fix rotted or damaged sheathing that's otherwise hidden, ensures the new roofing fastens properly, removes the weight and unevenness of old layers, and avoids sealing existing problems under a fresh roof. While some roofs can be 'overlaid' (a new layer over the old), a full tear-off gives the best, longest-lasting result — and it's required when there are already two layers or when the deck needs work.

Sometimes — but it has real trade-offs and isn't always allowed. A roof-over (overlay) installs new shingles directly over one existing layer, saving the labor and disposal cost of tearing off, so it's cheaper and faster. The downsides: most building codes cap a roof at two total layers, so you can't overlay if there are already two; an overlay hides any rotted decking and existing problems, adds weight, sits on an uneven surface so it wears faster, and can void some manufacturer warranties. A tear-off, by contrast, exposes the deck for inspection and repair, gives a flatter and better-performing new roof, and is the only option once you're at the two-layer limit. Most roofers recommend a full tear-off for the best long-term value, especially on an old, damaged, or already-doubled-up roof. This calculator prices the tear-off so you can weigh it against an overlay.

Each additional roofing layer means proportionally more material to strip, more weight, and much more debris to load and haul — and disposal is usually charged by weight. Removing two layers isn't simply double the shingles: the layers can be fused or matted together, harder to separate, with more underlayment and nails to pull, so the labor climbs faster than a straight 1-to-2 ratio (this calculator adds about 60% for two layers and 120% for three-plus). Multiple layers also usually indicate an older roof, which means a higher chance of hidden deck damage waiting underneath. That's why a roof that's been overlaid once or twice costs noticeably more to tear off than a clean single-layer roof — and it's a reason overlays can cost you later.

Possibly — and you often can't know until the old roofing is off. The roof deck (sheathing) is hidden beneath the roofing, so once tear-off exposes it, the roofer inspects for rot, water damage, soft spots, and delamination, which cluster around old leaks, valleys, penetrations, and edges. Any compromised sheathing must be replaced before the new roof goes on, because new roofing needs a solid, flat base to fasten to. Minor repairs (a few sheets) add modestly, while widespread rot from long-term leaks can add substantially. Because the deck can't be seen beforehand, reputable roofers quote a per-sheet or per-square-foot rate for deck replacement up front, so you know the cost if repairs turn up. This calculator includes minor (~$1.50/sq ft) and major (~$3.50/sq ft) deck-repair options so you can budget a contingency.

The torn-off roofing is loaded into a roll-off dumpster or dump trailer and hauled to a landfill or, increasingly, a recycling facility — asphalt shingles in particular are often recycled into road-paving material. Disposal is a genuine cost charged largely by weight, which is why heavy tile and multiple layers cost more to remove. A dumpster is usually placed on site during the job (an add-on here), and after tear-off the crew should run a thorough magnetic nail sweep of the yard and driveway to collect the countless roofing nails that fall — protecting tires, feet, and pets. Good crews also tarp and protect landscaping, siding, and gutters during the messy strip. When you compare quotes, check that disposal, cleanup, and protection are actually included rather than surprises.

Both drive labor and disposal. On pitch: a low, walkable roof lets crews move fast and safely, but as the slope steepens they need fall-protection harnesses, roof jacks, and sometimes staging or scaffolding, which slow the work and add equipment cost — very steep roofs also need care to keep debris from sliding off uncontrolled, so this calculator adds about 30% for steep roofs. On material: asphalt shingles are the lightest and fastest to strip (~$1.50/sq ft); metal panels must be unscrewed and detached (~$2.00); brittle nailed wood shakes take longer (~$2.50); and tile is the most (~$3.50) because it's heavy, removed piece by piece, and expensive to haul and dispose of. Complex roofs with many valleys, hips, dormers, and penetrations also take longer to strip cleanly, though pitch and material are the primary factors.

For a typical home, the tear-off portion is usually done in a day — less for a small single-layer roof, more for large, multi-layer, heavy-tile, or steep roofs. Crews generally tear off and then dry-in or re-cover the same area the same day (or next) to avoid leaving the deck exposed to weather. The stripping itself is fast but labor-intensive and messy; the time-consuming parts tend to be hauling heavy debris and replacing any rotted decking that turns up. Because an exposed deck is vulnerable to rain, roofers watch the forecast closely and often work in sections or tarp at day's end. If you're doing a full replacement, tear-off is just the first phase before new underlayment and roofing go on — so on most jobs the old roof is off and the deck is protected within a single working day.