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How Much Does Built Up Roof Cost in Washington, District of Columbia?

Install a new multi-ply built-up (tar and gravel) flat roof over an existing deck, per square foot, tear-off extra.

Built Up Roof in Washington, District of Columbia typically costs $4.19 to $9.42 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.

Built Up Roof in Washington, District of Columbia

$4.19 – $9.42

per sq ft

Prices in Washington are 5.0% higher than the national average for built up roof.

National average: $4 – $9 per sq ft

What you get at each price level

  • Basic

    $3.56 – $8.01 per sq ft

    Three-ply built-up roof with fiberglass ply sheets in hot asphalt, flood coat with gravel, new gravel stop

  • Standard

    $4.19 – $9.42 per sq ft

    Four-ply fiberglass felts in hot asphalt over a base sheet, flood coat with embedded gravel, new gravel stop and flashings

  • Premium

    $5.23 – $12 per sq ft

    Four plies plus base sheet over new cover board, flood coat and gravel, new edge metal, re-flashed curbs and drains

Cost Breakdown in Washington

ComponentCategoryPrice RangeUnit
Materialsmaterial$1.89 – $4.25sq ft
Laborlabor$1.46 – $3.28sq ft
Supplies & Othersupplies$0.50 – $1.13sq ft
Equipment & Disposalequipment$0.34 – $0.76sq ft
Prices adjusted for Washington local market conditions.

Cost Factors in Washington, District of Columbia

What Affects Pricing

  • Materials ($1.80-$4.05 per square foot)
  • Labor ($1.40-$3.15 per square foot)
  • Supplies & Other ($0.48-$1.08 per square foot)
  • Equipment & Disposal ($0.32-$0.72 per square foot)

Local Price Adjustments

Material costs5.0% above avg
Labor costs4.0% above avg

Frequently Asked Questions

References

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