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How Much Does It Cost To Replace An Entire Roof

What Is The Process Warranty And Cost Of Spray Foam Roofing


Perhaps this is the first time youre researching SPF roofing?

If so, you want to know the basics to see if spray foam is the right solution to your roofing issue.

In this article, well cover:

  • How does the process of a spray foam roof begin?
  • What equipment comes to your facility and how is it installed?
  • How does the warranty work, what options do you have, whats covered and not covered?
  • How much does a typical spray foam roof cost?
  • What are the variables that increase or decrease the cost of a spray foam roof installation?

And just so youre aware, West Roofing Systems has been in commercial roofing since 1979. We specialize in spray polyurethane foam roofing and have installed more than 60 million square feet of SPF.

Every article written at West Roofing Systems is produced in-house and is reviewed and approved by a spray foam and coating expert with more than 30 years of experience.

Flat Roof Replacement Cost

Flat roof replacement costs $50 to $400 per square depending on your choice of roofing materials. Instead of sheets of metal, shingles, or tiles, layers of plastic or rubber are laid down on a flat roof and sealed by melting with the flame from a blowtorch or a compound is sprayed over the entire surface of the roof to create a weatherproof finish. Flat roofing solutions also have an impact on reducing heat loss through the roof.

  • Modified Bitumen Roof Cost Modified bitumen is an asphalt product fortified with either a polyester or fiberglass matting to add strength and increase its useable lifespan. Using Bitumen on a flat or low slope roof and costs between $150 and $400 per square.
  • PVC Roof Cost PVC as a membrane roof solution is installed in widths of 6 to 18 wide and usually laid on top of an insulation board, and sometimes requires additional edge fastening which causes a minor spike in the labor costsmaking the range of roll roofing cost go from $70 to $110 per square installed.
  • Built-Up Roof In a built-up roof, after a few layers of sheet ply are laid down, they are fused together with melted asphalt, leaving the top layer the option to be a brighter color to reflect heat instead of absorbing it. Costs range between $50 to $80 per square
  • Spray-On Roof With a spray-on roof, polyurethane solution is evenly applied for as little as $30 per square, acrylic for $60 per square, or the premium option of silicon spray averages $85 per square or more.

What Is The Best Type Of Roofing Material For Cold Climates

If you live in a cold climate with punishing winters full of snow, ice and high winds, your roof will undoubtedly take quite a beating. The ideal roof for this type of environment is a slate tile roof. Made of stone, this type of roof can easily stand up to harsh winters, and can last up to 100 years.

A slightly less expensive option is a metal roof, which, when installed properly, allows snow and ice to slide off rather than adhering to your homes roof. Metal roofs are also great at bringing extra heat from the sun into your home, which can help lower heating bills during the cold months.

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Cost Of Roof Replacement: Architectural Shingles

That cost estimate of $6,725 to $9,000 is based on the assumption that you are using traditional shingles. But what if you want to go for an upgraded style? In that case, you really need to consider paying more for the 30-year architectural shingle.

This type is a little bit thicker than traditional shingles, and is typically a strong consideration if you want to provide a little more support and stability to your replacement roof.

In this case, you really need to think in terms of adding an additional $75 to $100 for each square to the cost. If youve been following along with all the math, youve probably noticed something very interesting going on here.

The increase in price for each square is greater than the difference in the cost of materials!

The secret here is that roofing contractors and roofing companies add in a little hidden mark-up to account for the greater quality of the items being used.

Of course, roofing contractors wont ever mention this premium, but if you ask them, they will always point to the higher degree of craftsmanship or training needed to install these higher-priced shingles.

But you can see how all the little mark-ups along the way can really inflate your costs. The total cost for a single-storey home with architectural shingles could range from a low of $7,850 to a high of $11,000.

Average Total Cost Of Replacement On A 2000

Roofing Cost Guide  How Much Does Roof Repair Cost ...

3-Tab Asphalt Shingles: $8,500 to $12,50030-year Shingles: $9,500 to $16,50050-year Premium Shingles: $10,000 to $18,500EPDM Rubber Membrane: $8,000 to $14,500TPO or PVC Membrane: $10,000 to $16,500Wood Shingles: $14,000 to $25,500Steel Shingles: $14,000 to $25,500Aluminum Shingles: $15,000 to $27,500Standing Seam: $18,000 to $29,500Natural Slate: $25,000 to $50,500Concrete Tiles: $25,000 to $40,500Clay Tiles: $25,000 to $45,500

See what local pros charge

* These are approximate total job prices based on the national average. Costs may vary depending on your region and homes location, the roofs slope and number of stories, overall complexity of the roof, the number of layers of old shingles to be removed and disposed of the type of roofing underlayment , roof accessories used, and any workmanship warranties or guarantees the contractor offers.

Getting a roof replacement is expensive. Seeing the total price of getting it done properly can cause a justifiable sticker shock. However, when homeowners have a better understanding of where the money is going and how they will save money in the long run, its easier to see a quality roof as the investment it truly is.

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How Do You Hire A Great Roofing Contractor

Now you have an idea of what you can expect to pay for a new roof. Based on the prices above, you should have a good idea of which roofing material you want for your new roof.

After making your decision, the next step is to reach out to a roofing contractor. Choosing your roofer is the biggest decision you’ll make during the entire roof replacement process.

That’s why it’s crucial to make the right hiring decision. The best way to do this is to ask potential roofing contractors the right questions.

To help you avoid being taken advantage of by the roofing industry, we created a 16 question checklist of questions you need to ask potential roofing contractors. The checklist also includes the right answers you’ll get back from a reputable company.

Don’t get taken advantage of keep going to get the checklist of questions every homeowner needs to ask a roofing contractor.

The team at Bill Ragan Roofing has repaired, maintained, and replaced all the different types of roofing materials in the Nashville area since 1990. Giving you the roof of your dreams and being there for you if theres ever a problem is our main goal. If youre local to Nashville, dont hesitate to contact us for any of your roofing needs.

Average Cost Of Installing A New Roof

A roof protects your family and items from external factors. If your roof gets damaged, consider replacing it as soon as possible. When building a new house, the installation cost tends to be relatively cheaper.

When installing a new roof, expect to spend around $4,707 to $10,460, depending on the materials used and roof size. For example, installing asphalt shingles on a 2,000 square feet roof will cost approximately $3,600 to $10,800, while metal shingles cost anywhere from $8,000 to $24,000.

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Average Cost To Reroof A House

The average cost to reroof a house is between $7,000 and $12,000. Homes come in many different shapes and sizes and so do their roofs. Homes can also be roofed with many different materials, each of which also has its own cost. If your home has a very high pitch or unusual roofing attributes, you could have much higher costs. If you choose a heavier material, you may have additional costs to reinforce the frame of your roof or your roof deck. Most homes with roofs between 4/12 and 8/12 in pitch will be fairly easy to reroof and not have many extra associated costs.

Cost Of A 3750 Sqft Roof

How much does a roof cost to replace part 1

The cost of a new 3,750 sq.ft. roof is between $13,125 and $22,500. A roof this size will be found on a home that is 2,500 sq.ft. These costs are for a full roof replacement. This includes tearing off the old roof and replacing it with a new roofing material. Costs do not include the replacement of the deck or the roof reinforcement. If your roof needs this additional work, your costs will be higher.

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Cost To Replace An Asphalt Shingle Roof

The cost to replace an shingle roof is between $2.50 and $4.50 a square foot. Asphalt shingles are one of the most commonly used types of roofing material. They are lightweight, inexpensive, and easy to install. They come in many different colors and with different thicknesses and attributes. Some are resistant to hail damage, while others are white in color for cooling roofs. Some asphalt shingles can also be installed over an existing layer, which reduces installation costs.

Signs You Need A Roof Replacement

Getting a roof replacement is more than just a home improvement project – its about keeping a roof over your head. Its a good idea to inspect your roof at least once a year to make sure its in the best condition to protect your home.

Environmental damage

If you see widespread curling, cracking, rust, or other visible damage to your roofing material, it may be time to get a roof replacement. Another sign that you need a roof replacement is evidence of water damage, such as leaks or dripping in your attic.


The age of your roof is another key indicator that you may need a roof replacement. For example, if your 3-tab asphalt shingle roof is 20 years old, its probably time to get your roof replaced. Read our guide onhow long roofs last for more information about your roof type and its lifespan.

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Other Considerations And Costs

  • Roofing-over can be done in some roof installations, which can reduce your costs significantly due to avoiding the cost of removal labor.
  • If decking damage covers more than 100 square feet, your installer may recommend a full decking replacement, which could significantly increase the price.
  • Permits and taxes are not included. The average roofing permit, if required, costs between $400 and $500.

Check out our guide if you need a loan for your home improvement project.

Replace Sheathing / Re

How Much Does It Cost to Replace A Roof? It Depends...

When your roofing contractors tear off your old roof, they may find structural damage underneath and determine they need to replace some of the decking. The decking/sheathing is the plywood underneath your shingles or other roofing material.

One sheet of plywood will cover about 32 square feet, and you should expect to pay $70 to $100 per sheet of plywood. Unless the damage is extreme, you usually wont have to replace all the sheathing at once, only the damaged sections.

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Concrete Roof Tiles Price

Concrete roof tiles average$9 to $18 a square foot installed. Concrete roof tiles come in many styles. They can resemble curved clay tile roofs or be fashioned into flat tiles. Both come in several colors as well as subtly different styles. Concrete is more durable and lower in maintenance than other tile roofs. It may require roof reinforcement, depending on the age and structure of your current roof.

What Is The Most Affordable Material For Roof Replacement

If youre looking for ways to cut down the cost of getting a new roof, you may want to consider getting asphalt shingles. Out of all the options out there, asphalt is probably the most pocket-friendly, followed by metal, tile, and, lastly, slate. Heres a chart of what the price ranges look like for each material:

  • Asphalt $120 to $400 per 100 square feet
  • Metal $500 to $1800 per 100 square feet
  • Tile $600 to $4000 per 100 square feet
  • Slate $800 to $4000 per 100 square feet

Its tempting to choose the most affordable option out there, especially if youre on a very tight budget. But keep in mind: theres always a catch to choosing cost over quality. An asphalt roof will last you for only 30 or so years. But a roof made out of the higher-priced materials can last for about 50 or more years. Deciding which option is the better solution for your roof totally depends on you at this point.

About Liability Insurance

Along with figuring out which materials are the best for your new roof, discuss the cost of the removal and installation of shingles with your contractor. Again, the prices vary widely depending on the tenure of your contractor. Newer and smaller companies may give you lower quotations but keep an eye out for abnormally low bids.

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Queen Post Roof Truss

You can expect to spend between $50 and $100 per truss for the queen post roof truss. The queen post truss is used for additions and extensions to the home. It is a much shorter truss, only extending about 16 feet. This truss will be used on several different types of roofs but is typically only chosen for extensions and not for a full-scale roof replacement. In smaller homes, it may serve to fit the entire job, but usually, a more durable, longer truss with a better span and pitch is required for a full roof framing job.

Greenhouse Polycarbonate Roof Price

How much does a roof cost?

The cost of replacing a greenhouse roof is between $1,400 and $3,500. Polycarbonate is a common material for use on greenhouses. It is a plastic that lasts longer and is more durable than glass. It can be used on many different types of greenhouses. Greenhouses themselves come in a wide range of sizes and shapes. This influences the total cost of the project because greenhouses with unusual pitches or amount of roof can raise the total cost.

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Average Cost To Replace A Roof Based On House Size:

  • 1,000 square feet: $4,000 to $5,500
  • 1,100 square feet: $4,200 to $6,000
  • 1,200 square feet: $4,500 to $6,500
  • 1,500 square feet: $5,500 to $8,000
  • 1,600 square feet: $6,000 to $8,500
  • 1,7oo square feet: $6,500 to $9,000
  • 1,800 square feet: $6,700 to $9,500
  • 1,900 square feet: $7,000 to $10,000
  • 2,000 square feet: $7,400 to $10,500
  • 2,500 square feet: $9,000 to $13,000
  • 3,000 square feet: $11,200 to $16,000

When You Can Just Replace The Shingles

The following are a few examples of when simply replacing damaged shingles is enough to ensure that your roof does its job and remains in good condition:

  • The shingles are cracked or torn Shingles that are cracked can be replaced individually. However, if the crack or tear is minor, you may not even have to do that you could simply have the shingle repaired with the use of roofing sealant.
  • The shingles are missing pieces If a piece of a shingle is missing, then the entire shingle will need to be replaced. This can happen if a piece of debris has been blown into your roof, thereby causing a piece of shingle to break off.
  • There are missing shingles Missing shingles will need to be replaced right away. If a shingle is missing, your roof becomes vulnerable to the elements especially wind and rain. Wind will be able to get under surrounding shingles and cause further damage, while rain may be able to leak into the area where the shingle is missing.

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Additional Roof Replacement Materials And Features

When you replace your roof, you may find you need to repair more than just your shingles. Here are a few things that might increase the cost of replacing your roof:

Your roofs decking is what your roofing material is installed on. Usually, decking is made of plywood or oriented strand board that is placed over your rafters. If your roof is damaged or has leaked, then your decking may need to be replaced. Replacing or repairing roof decking will cost between $2.20 and $3.00 per square foot.

However, your contractor wont be able to tell if there is damage to your decking until after your existing roofing material is removed. A decking replacement will be added to the cost of your re-roofing project after youve already received a quote.


The underlayment of your roof helps protect your roof decking against water damage. So, if your shingles crack and water gets through them, the water will hit the underlayment and wont rot your entire roofing system. Most underlayment materials used today are made with a synthetic felt that is then covered in asphalt.

In many places, underlayment is required for your home to be up to code and must be replaced as part of your roof replacement. New underlayment costs between $1.50 and $2.10 per square foot.

Ice and water barrier

Replacing ice and water barriers may cost between $1.87 and $2.53 per square foot, not including installation costs.

Fascia and soffit replacement

Roof flashing and pipe boots


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