Roofing Costs

Learn How to Estimate Roofing Costs on Your Rehab Projects
Overview
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Things to Look For
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Price Ranges
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Repair Items
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Labor Costs
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Material Costs
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Location Factor
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Other Factors
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Calculating Your Budget
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Examples
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Other Resources

Overview

Roofing is a critical component of any house flipping project. A solid roof protects the entire structure and significantly impacts a home's value and appeal. As an investor, you need to accurately assess the roof's condition and determine whether it needs repair or replacement. This includes identifying potential issues, understanding the different types of roofing materials, and estimating the costs involved. This guide provides you with the essential knowledge to confidently tackle roofing projects and make informed decisions for your investments.

Things to Look For

When inspecting a roof, prioritize identifying signs of damage or aging, such as missing or damaged shingles, and leaks around flashing. The roof's aesthetic appeal is also important for curb appeal. Consider both the condition and aesthetics when deciding whether to repair or replace it.

To learn more about what to look for during a roof inspection, including helpful pictures and detailed explanations, check out our comprehensive Roof Inspection Guide.

Price Ranges

Roofing costs can vary significantly depending on the type of material used. The price ranges provided include both labor and materials for a complete roof replacement. Asphalt shingles are the most common and economical choice, ranging from $300 to $600 per square (a "square" is 100 square feet). A good starting point for budgeting an asphalt shingle roof replacement is around **$400 per square**. However, keep in mind that factors like the complexity of the roof, the number of layers to tear off, and local market conditions can influence the final price.

Category Repair Items

Labor & Installation Costs

Installation Timeline

The time it takes to install a new roof can vary depending on several factors, including the size and complexity of the roof, the type of roofing material used, and the weather conditions. However, here's a general timeline for a typical asphalt shingle roof replacement on a small to average-sized property (1,000 to 2,000 square feet):

  • Small Properties (1 day):  A skilled roofing crew can efficiently tear off and replace the roof on a smaller property within a single working day.
  • Average-Sized Properties (2 days): For a typical 1,500 square foot home requiring 16 to 20 squares of roofing, the project should take approximately two days to complete.
  • Larger or Complex Properties (3+ days): Larger properties or those with complex roof designs may take three or more days to complete.

Important Note:  If you're opting for more labor-intensive roofing materials like wood or tile, expect the installation timeline to extend by several days due to the increased complexity of the installation process.

Material Costs

Location Factor

Location Adjustment

The prices provided in the table are based on a 1,500 square foot property located in a typical, affordable suburban area. Roofing prices can vary substantially depending on your location. Expect to pay more in expensive urban areas, particularly on the East and West Coasts, where premiums can range from 15% to 50%. Natural disasters or regional shortages can also temporarily inflate prices. Consult our location multiplier index for more accurate pricing in your market.

Determining Your Local Prices

To get the most accurate roofing cost estimates for your projects, it's essential to gather pricing information from local roofing contractors. While our national averages provide a helpful starting point, local market conditions, material availability, and labor costs can significantly impact pricing.

When contacting roofing contractors, be upfront about your needs. Explain that you are a real estate investor who flips houses and are currently in the process of budgeting for potential projects. Let them know you are looking for a rough estimate for a typical roof replacement on a 1,500 square foot home with asphalt shingles.

Most contractors should be willing to provide a general range for this type of project, even if they are hesitant to give a firm price over the phone. This information will help you refine your budget and make more informed investment decisions.

Tips for contacting contractors:

  • Be upfront about your needs: Clearly state that you are gathering preliminary estimates for future projects.
  • Don't pressure them for a firm quote:  Let them know you will contact them for a formal quote when you have a specific property ready for roofing work.
  • Get multiple quotes:  Reach out to several roofing contractors in your area to compare pricing and find the best fit for your needs.

Other Factors

Several factors beyond the basic cost of materials and labor can impact your final roofing expenses:

  • Type of Roofing Material: The choice of roofing material significantly affects the cost. Asphalt shingles are the most budget-friendly option, while materials like tile, slate, or metal roofing come with a higher price tag due to increased material and installation costs.
  • Roof Size and Scope of Work: Larger roofing projects often benefit from economies of scale, resulting in a lower cost per square foot compared to smaller repairs or patch jobs.
  • Number of Existing Roof Layers:  If your property has multiple layers of old roofing, the tear-off process becomes more labor-intensive and time-consuming, leading to higher labor costs.
  • Condition of Roof Decking: Older homes may have outdated or deteriorated roof decking (the wooden sheathing beneath the shingles) that requires repair or replacement before installing a new roof, adding to the overall project cost.
  • Roof Pitch and Complexity: Steep roofs and those with intricate designs, including hips, valleys, and dormers, require more time, specialized equipment, and potentially higher-skilled labor, increasing the installation costs.
  • Accessibility and Location:  Easy access to the roof area allows for efficient work and can lower labor costs. Projects in urban areas or locations with limited access may incur higher expenses.
  • Seasonality and Demand: Roofing contractors often experience peak demand during spring and summer months. Scheduling your project during these periods may result in higher prices due to increased competition for their services.

By understanding these factors, you can better anticipate potential cost variations and make informed decisions about your roofing project.

How to Estimate Roofing Costs

Measurements

Roofing contractors use a unit of measure called a square to estimate roof size. A square is equal to 100 square feet (a 10ft x 10ft area).

For example, a house with a perfectly square roof measuring 50 feet wide and 50 feet long would have a surface area of 2,500 square feet, or 25 squares:

  • 50ft x 50ft = 2,500 sq ft
  • 2,500 sq ft / 100 sq ft per square = 25 squares

Unfortunately, most homes don't have simple square roofs. Pitched roofs, complex shapes, valleys, and dormers make accurate measurement more challenging.

Calculating Your Budget

To estimate the roof area:

  1. Calculate the building footprint: Measure the length and width of the house and multiply to find the square footage.
  2. Account for roof pitch: Multiply the building footprint square footage by a factor of 1.25 to account for the slope of the roof. This provides a rough estimate of the total roof area.

Note: For complex roofs with multiple slopes and dormers, it's best to consult a professional roofer for accurate measurements.

Example

Let's say you have a 1,500 square foot house.

  1. Building footprint: 1,500 square feet
  2. Estimated roof area: 1,500 sq ft x 1.25 = 1,875 sq ft
  3. Number of squares: 1,875 sq ft / 100 sq ft/square = 18.75 squares
  4. Estimated cost (using $400/square): 18.75 squares x $400/square = $7,500

This gives you a rough estimate of $7,500 for a new asphalt shingle roof on this property.

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