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Roof cost for a 1,500 sq ft house

Worked out for a 1,500 sq ft storey-and-a-half Cape Cod with a 10/12 gable roof, with tables for other pitches, storeys and materials.

1,500 sq ft · storey-and-a-half Cape Cod · 10/12

$7,900 – $14,500

1,565 sq ft of roof, 17.2 squares to order (10% waste) · installed, incl. tear-off of one layer and a permit

Change the numbers in the roof cost calculator

The working

  1. 1. Floor plan1,500 sq ft ÷ 1.5 storeys = 1,000 sq ft per floor = 25.8 ft × 38.7 ft1,000 sq ft
  2. 2. Add overhangs(25.8 ft + 3) × (38.7 ft + 3), for 1.5 ft eaves on every side1,203 sq ft footprint
  3. 3. Roof surface1,203 sq ft footprint × 1.302 (10/12 pitch multiplier)1,565 sq ft
  4. 4. Squares to order1,565 ÷ 100 = 15.7 squares, + 10% waste (gable roof)17.2 squares
  5. 5. Installed1,565 sq ft × $4–$6 per sq ft (architectural asphalt shingles, HomeGuide, Nov 7, 2025)$6,262 – $9,393
  6. 6. Tear-off1,565 sq ft × $1–$3 per sq ft to remove one layer (HomeGuide)$1,565 – $4,696
  7. 7. PermitFlat fee, set locally (HomeGuide, Fixr)$100 – $500
  8. 8. Installed totalSum, rounded to $100 under $10,000 and $500 above$7,900 – $14,500

Prices are published national installed ranges (mostly HomeGuide, updated Nov 7, 2025), the same ones the roof cost calculator uses, for a straightforward re-roof with one old layer torn off. They are not adjusted for your state; the calculator can do that. Decking repairs, access, steep or cut-up roofs and the contractor all move the final price, so get at least two written quotes.

Squares and the materials list come from the same math as the roof calculator, which works them out for your own measurements.

This 1,500 sq ft house at other pitches

PitchRoof surfaceSquaresAsphalt shinglesStanding-seam metal
3/121,240 sq ft12.4$6,300 – $11,500$12,500 – $24,000
4/121,268 sq ft12.7$6,400 – $12,000$13,000 – $24,500
6/121,345 sq ft13.4$6,800 – $12,500$13,500 – $26,000
8/121,445 sq ft14.5$7,300 – $13,500$14,500 – $28,000
10/12 (this house)1,565 sq ft15.7$7,900 – $14,500$16,000 – $30,000
12/121,701 sq ft17.0$8,600 – $16,000$17,000 – $33,000

Published ranges are priced per square foot of roof, so a steeper pitch costs more here only because it has more roof. Many roofers also add a steep-roof charge from about 7/12 or 8/12.

Same 1,500 sq ft, one storey or two (10/12, gable roof)

HouseRoof footprintSquaresAsphalt shingles
One storey1,746 sq ft22.7$11,500 – $21,000
Storey and a half (this house)1,203 sq ft15.7$7,900 – $14,500
Two storeys927 sq ft12.1$6,100 – $11,500

Cape Cods have a small footprint but a steep roof. At 10/12 crews work from roof jacks and harnesses, and many contractors add a steep-roof charge, so expect the top half of each range.

Materials to order (asphalt shingles, gable roof)

MaterialQuantityHow it is worked out
Shingles52 bundles17.22 squares with 10% waste × 3 bundles per square
Synthetic underlayment2 rolls1,722 sq ft ÷ 1,000 sq ft per roll
Ice & water shield2 rolls3 ft along 85 ft of eaves, +5% laps
Starter strip2 bundles159 ft of eaves and rakes +5% ÷ 100 ft per bundle
Drip edge17 10 ft pieces159 ft of eaves and rakes +5% for laps
Hip & ridge cap2 bundles42 ft of ridges and hips +5% ÷ 25 ft per bundle

Did hail hit your area? Insurance often covers hail damage. Check hail history for your city, with storm reports back to 1955.

Questions people ask

How many squares is a 1,500 sq ft house roof?

About 15.7 squares for this storey-and-a-half Cape Cod at 10/12, or 17.2 to order with 10% waste. The tables show how storeys and pitch change that.

How many bundles of shingles for a 1,500 sq ft house?

About 52 bundles of architectural shingles at three bundles per square, including 10% waste for a gable roof.

What would standing-seam metal cost instead?

About $16,000 – $30,000 installed on the same roof, against $7,900 – $14,500 for asphalt, including tear-off of one old layer and a permit.

Is a 1,500 sq ft storey-and-a-half roof cheaper than a ranch?

Usually, yes. Spread over a storey and a half, the house needs about 15.7 squares instead of 22.7 for a one-storey 1,500 sq ft ranch at the same 10/12 pitch: about $7,900 – $14,500 against $11,500 – $21,000.

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