Cost to replace a 3,500 square foot roof, by roofing type
Roofers price by the square, and one square is 100 square feet, so a 3,500 square foot roof is 35 squares. The table multiplies 35 squares by the low and high installed cost of each roofing. The last column adds tearing off the old roof at $100 to $500 per square, which is $3,500 to $17,500 on this roof.
| Roofing | Per square foot | Per square | 35 squares, no tear-off | With tear-off |
|---|---|---|---|---|
| Asphalt shingles | $4 to $12 | $400 to $1,200 | $14,000 to $42,000 | $17,500 to $59,500 |
| Standing seam metal | $4 to $30 | $400 to $3,000 | $14,000 to $105,000 | $17,500 to $122,500 |
| Wood shingles | $7 to $15 | $700 to $1,500 | $24,500 to $52,500 | $28,000 to $70,000 |
| Clay shingles | $12 to $25 | $1,200 to $2,500 | $42,000 to $87,500 | $45,500 to $105,000 |
| Slate | $12 to $25 | $1,200 to $2,500 | $42,000 to $87,500 | $45,500 to $105,000 |
These are HomeAdvisor's national ranges for materials and installation together, not prices for your area. On 35 squares, every $100 a roofer adds or takes off per square moves the total by $3,500. The starting prices come from the store listings and cost guides under Sources, last checked in October 2026. Prices vary by region and season, so change any price to match your store or your quote.
What moves the price on a 3,500 square foot roof
On a big roof, repair can look tempting next to the full price. HomeAdvisor puts most roof repairs at $400 to $2,000, against a full replacement of $14,000 or more here. It says repair fits a few damaged shingles in one spot, and replacement fits widespread damage or a roof that has reached its age.
Next to what most people pay
HomeAdvisor says most homeowners spend $6,138 to $13,994 on a new shingle roof, $10,066 on average. Even the low end of this roof's asphalt estimate with a tear-off, $17,500, is more than the top of that range, so a roof this size costs more than most homeowners pay. Spread over 3,500 square feet, the average of $10,066 would be only $2.88 per square foot, below the $4 to $12 the cost guide gives for the roof alone.
It also says labor is about 60 percent of a new shingle roof, at $1.50 to $4.00 per square foot, which is $5,250 to $14,000 on 35 squares. Booking in peak construction season can add 15 to 30 percent; on the middle of this roof's asphalt estimate, $38,500, that is $5,775 to $11,550.
Planning a 3,500 square foot roof
Know the age of the roof before you decide. HomeAdvisor says most asphalt shingles last 15 to 20 years, and architectural shingles around 30. A roof near the end of that span will cost more in repairs than it saves.
How the 3,500 square foot estimate is worked out
- Squares = 3,500 ÷ 100 = 35
- New asphalt shingle roof = 35 × $400 = $14,000 at the low end, and 35 × $1,200 = $42,000 at the high end
- Tear-off = 35 × $100 = $3,500 at the low end, and 35 × $500 = $17,500 at the high end
- Estimate = $14,000 + $3,500 = $17,500 at the low end, and $42,000 + $17,500 = $59,500 at the high end
If a quote already includes the tear-off, choose No tear-off in the calculator above so it is not counted twice.
Shingles for a 3,500 square foot roof, materials only
Doing it yourself, the shingles and felt cost about $5,569: 116 bundles of architectural shingles at $44.99 and 10 rolls of #15 felt at $34.99, with 10 percent waste, at McCoy's Building Supply prices checked in October 2026.
| 3,500 square foot roof in asphalt shingles | Cost |
|---|---|
| Shingles and felt, materials only | About $5,569 |
| Installed by a roofer, no tear-off | $14,000 to $42,000 |
| Installed by a roofer, with tear-off | $17,500 to $59,500 |
The gap of $8,431 to $36,431 is the roofer's labor and costs, plus the nails, drip edge, flashing, vents, ridge cap, delivery and tax the materials figure leaves out. The 3,500 square foot shingle order has the full list.
Is your roof really 3,500 square feet?
The most common mistake in a roof estimate is using the floor area as the roof area. This table works back from a 3,500 square foot roof to the house under it, 4 feet long for every 3 wide with 12 inch overhangs.
| Roof pitch | Pitch multiplier | Flat area covered | House that fits | Floor area |
|---|---|---|---|---|
| 4 in 12 | 1.054 | 3,320 sq ft | 64 by 48 ft | 3,072 sq ft |
| 6 in 12 | 1.118 | 3,130 sq ft | 62 by 47 ft | 2,914 sq ft |
| 8 in 12 | 1.202 | 2,912 sq ft | 60 by 45 ft | 2,700 sq ft |
| 10 in 12 | 1.302 | 2,689 sq ft | 58 by 43 ft | 2,494 sq ft |
| 12 in 12 | 1.414 | 2,475 sq ft | 55 by 41 ft | 2,255 sq ft |
At 6 in 12, a 3,500 square foot roof sits over a house of about 62 by 47 feet, with 2,914 square feet of floor. Going the other way, a one-story house with 3,500 square feet of floor has about 4,185 square feet of roof at the same pitch and overhangs. In asphalt shingles with a tear-off, that roof is about $20,900 to $71,100, close to the figures for a 4,000 square foot roof.
A two-story house with 3,500 square feet of floor space has about 1,750 on each level, so its roof is about 2,150 square feet, close to a 2,200 square foot roof. A garage or porch adds its own roof area; the roof area calculator measures yours.
Before you sign
When only part of a large roof is replaced, the new shingles will not match the old ones in color, and the two parts age differently. Ask whether the roofer can stop at a natural break, such as a garage wing.
Other roof sizes
In asphalt shingles with a tear-off, a 3,000 square foot roof is $15,000 to $51,000 and a 4,000 square foot roof is $20,000 to $68,000.
1,000 sq ft1,200 sq ft1,500 sq ft1,800 sq ft2,000 sq ft2,200 sq ft2,500 sq ft3,000 sq ft4,000 sq ft
Common questions
How much does it cost to replace a 3,500 square foot roof?
About $17,500 to $59,500 with asphalt shingles and a tear-off, or $14,000 to $42,000 without, by HomeAdvisor's national figures. Quotes from roofers in your area are the only firm number.
How much does a 3,500 square foot metal roof cost?
For standing seam metal, about $14,000 to $105,000 before tear-off, at HomeAdvisor's $4 to $30 per square foot installed. The range is wide because it covers metals from steel and aluminum up to zinc and copper.
How much does it cost to tear off a 3,500 square foot roof?
About $3,500 to $17,500, at HomeAdvisor's $1 to $5 per square foot for removing and hauling away the old roofing. Some quotes already include it.
Should I repair or replace a 3,500 square foot roof?
Repair fits damage in one spot, which HomeAdvisor prices at $400 to $2,000. Widespread damage, or a roof 15 to 20 years old in standard asphalt shingles, usually points to replacement.
How many squares is a 3,500 square foot roof?
35 squares. With 10 percent waste a shingle order is 38.5 squares, or 116 bundles at 3 bundles a square.
Is a 3,500 square foot roof the same as a 3,500 square foot house?
No. A one-story house with 3,500 square feet of floor has about 4,185 square feet of roof at 6 in 12 with 12 inch overhangs, and a 3,500 square foot roof fits a one-story house of about 2,914 square feet.
Sources
- HomeAdvisor: shingle roof replacement cost, with removal of the old roof
- HomeAdvisor: standing seam metal roof cost
- McCoy's Building Supply: roof shingle prices
- McCoy's Building Supply: roofing underlayment prices
Facts on this page were last checked against these sources in October 2026.