**Estimating Exterior Rehab Costs**

**Estimating Exterior Rehab Costs**

How to Flip Houses /

**How to Estimate Exterior Rehab Costs****Estimating Roofing Costs**

**How to Measure & Estimate Roofing**

Roofing materials are typically measured by the

So for example, a house or a building with 2,500 sf of roofing would be 25 squares (2,500sf / 100 = 25 squares). Unfortunately, most houses are not square and have sloped roofs, gables and overhangs, which makes estimating the size of your roof more complicated.

As an easy rule of thumb you can quickly calculate your roof size by taking the building footprint (sf of the first floor) and multiplying it by 1.25. The additional 25% is used to cover the roof slope, material waste, gables, overhangs and miscellaneous areas.

For example, let's say we have a rehab property with a building footprint of 1,500 sf. How many squares of roofing would we need?

Roof Size = 1,500sf x 1.25

Roof Size = 1,875sf

Square Foot to Square Conversion

**'square'**. A square of roofing is 10ft x 10ft or 100sf.So for example, a house or a building with 2,500 sf of roofing would be 25 squares (2,500sf / 100 = 25 squares). Unfortunately, most houses are not square and have sloped roofs, gables and overhangs, which makes estimating the size of your roof more complicated.

As an easy rule of thumb you can quickly calculate your roof size by taking the building footprint (sf of the first floor) and multiplying it by 1.25. The additional 25% is used to cover the roof slope, material waste, gables, overhangs and miscellaneous areas.

**Roof Size**= Building Footprint (size of first floor) x 1.25**Roof Size Calculation Example**For example, let's say we have a rehab property with a building footprint of 1,500 sf. How many squares of roofing would we need?

Roof Size = 1,500sf x 1.25

Roof Size = 1,875sf

Square Foot to Square Conversion

**1,875sf/100 = 18.75 Squares**For an in-depth analysis of calculating your roof size, checkout this article on How to Calculate the Size of Your Roof

**Typical Roofing Costs**

Roofing prices vary substantially depending on the type of materials used. Asphalt shingle roofing is the most economical and the most popular roofing material used across the country, but metal roofs are gaining popularity. Wood, clay tile and slate tile roof materials are significantly more expensive and are more labor intensive to install.

Other factors that may influence your roofing costs are the size of the roof, pitch of the roof, shape of the roof, your location & seasonality.

To calculate your roofing costs simply multiply the # of squares by the roofing unit price per square.

Other factors that may influence your roofing costs are the size of the roof, pitch of the roof, shape of the roof, your location & seasonality.

To calculate your roofing costs simply multiply the # of squares by the roofing unit price per square.

**Roofing Costs**= # of Squares of Roofing x Square of Roofing Unit PriceType of Roofing | Unit Price Range | Total Price Range (20 sq) | |
---|---|---|---|

3-Tab Asphalt Shingles | $200 to $450 / SQ | $4,000 to $9,000 | |

Architectural Asphalt Shingles | $250 to $500 / SQ | $5,000 to $10,000 | |

Wood Shingles | $500 to $800 / SQ | $10,000 to $16,000 | |

Metal Roofing | $300 to $800 / SQ | $6,000 to $16,000 | |

Clay Tile Roofing | $1,000 to $2,000 / SQ | $20,000 to $40,000 | |

Slate Tile Roofing | $1,000 to $2,000 / SQ | $20,000 to $40,000 |

* Prices above include Labor & Materials

**Other Resources for Roofing Costs:**

**Estimating Siding Costs**

**How to Measure & Estimate Siding**

Siding materials are typically measured by the

To measure the amount of siding your need on a property you will need to measure the vertical surface area of the siding. There are two ways to calculate the vertical surface area of home:

The most accurate way to calculate the amount of siding you need is to sketch out each side of the home of your property and calculate the square footage. Measuring and sketching each side of the property takes time, but it is the most accurate way of calculating the amount of siding your need.

**'square foot or square feet'**.To measure the amount of siding your need on a property you will need to measure the vertical surface area of the siding. There are two ways to calculate the vertical surface area of home:

- Multiplying the perimeter of the home x the height of the siding (simple less, but accurate)
- Drawing sketches (elevations) of each side of the home and measuring the areas (more time consuming, more accurate)

**Drawing Elevations or Sketches**The most accurate way to calculate the amount of siding you need is to sketch out each side of the home of your property and calculate the square footage. Measuring and sketching each side of the property takes time, but it is the most accurate way of calculating the amount of siding your need.

**Perimeter x Height Calculation**

The less accurate, but faster way to calculate the amount of siding is to simply measure the perimeter of your property and multiply it by the average height of siding.

**Typical Roofing Costs**

Roofing prices vary substantially depending on the type of materials used. Asphalt shingle roofing is the most economical and the most popular roofing material used across the country, but metal roofs are gaining popularity. Wood, clay tile and slate tile roof materials are significantly more expensive and are more labor intensive to install.

Other factors that may influence your roofing costs are the size of the roof, pitch of the roof, shape of the roof, your location & seasonality.

To calculate your roofing costs simply multiply the # of squares by the roofing unit price per square.

Other factors that may influence your roofing costs are the size of the roof, pitch of the roof, shape of the roof, your location & seasonality.

To calculate your roofing costs simply multiply the # of squares by the roofing unit price per square.

**Roofing Costs**= # of Squares of Roofing x Square of Roofing Unit PriceType of Roofing | Unit Price Range | Total Price Range (20 sq) | |
---|---|---|---|

3-Tab Asphalt Shingles | $200 to $450 / SQ | $4,000 to $9,000 | |

Architectural Asphalt Shingles | $250 to $500 / SQ | $5,000 to $10,000 | |

Wood Shingles | $500 to $800 / SQ | $10,000 to $16,000 | |

Metal Roofing | $300 to $800 / SQ | $6,000 to $16,000 | |

Clay Tile Roofing | $1,000 to $2,000 / SQ | $20,000 to $40,000 | |

Slate Tile Roofing | $1,000 to $2,000 / SQ | $20,000 to $40,000 |

* Prices above include Labor & Materials

**Other Resources for Roofing Costs:**

**Estimating Software**

Our Flipper Force Software includes a Repair Cost Estimator tool that can help you estimate repair costs for your rehab projects. The Repair Cost Estimator is pre-built with a database of over 30 Common Scopes of Work & over 500 budget items, so you can take your newly learned estimating knowledge and practice estimating costs for your projects. Learn more about our Rehab Repair Cost Estimator Tool |