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How Much Is It To Redo A Roof

How Much Should I Pay For Roof Remodeling

DIY: How To Reroof A Roof

Is it time to get a new roof over your head? If youre like most homeowners, how much is this going to cost me? is probably at the top of your list of roof remodeling questions.

Just like there is no one-size-fits-all roof you can buy off the shelf at your local home improvement store, roof remodeling costs come in all shapes and sizes and budgets.

Your roofing project will depend on a variety of factors, including the size of your home, the materials you pick and the installer you choose.

As with any home improvement project, its important to weigh each factor on its own, then consider them collectively to find the best product and installer for your budget.

Factors That Influence the Cost of a Roof Remodeling Job

Your roof is much more than your homes crowning glory it protects your house and everything in it from moisture, which can lead to structural damage and mold. Leaky roofs can even allow dangerous levels of toxic mold to flourish, which can lead to respiratory problems.

To safeguard your home and your health, you want a roof that is made to last. Understandably, you also want to make sure your new roof is a financially sound investment.

With price in mind, here are the most common factors that influence cost in a new roof installation.

Location. As they say in real estate: location, location, location. In other words, it matters. Not only does the cost of materials vary by region, climate can play a major role in the type of roofing materials used.

Finishing The Flat Roof

Before laying the roll roofing, run a bed of roofing cement along the edge about three to four inches wide, making sure to cover where you nailed the drip edge. To lay the roll roofing, start at the bottom edge and work lengthwise up the roof as before. Make a mark four inches down from the top of your first layer. Measure the width of the layer and put a mark that far up from the mark you just made do this at each end. Using a chalk box and strike a line across the felt paper to mark a line that you will follow to keep your next layer straight. Continue this up to the top, and lay down the strips of roll roofing and nail the top edge. When you reach the other side of the roof, nail it down and then cement over the outer edge to seal it. Check the roof for any protrusions such as pipes and vents, and cement around them to avoid leaking later.

Roofing Labor Cost Per Square Or Square Foot

Labor for roofing projects ranges from $150 to $300 per square or $1.50 to $3 per square foot, depending on factors like the product youre installing and the conditions of the structure. Labor and overhead usually make up 60% of the project total. For example, if you spend a total of $7,500 on the roof, $4,500 will go toward labor and overhead.

One hundred square feet is considered a roofing square. The per square rate contains all relevant factors:

  • The price of the shingles

  • Supplies

  • Labor

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Diy Roofing Vs Hiring A Roofer

Replacing your roof as a DIY project costs $2,500 to $5,000 versus the $5,000 to $10,000 average to hire a professional. This is a sizable job that can lead to all kinds of unexpected complications. You may:

  • Find damaged timber in the framing/deck.

  • Strip the surface and find that your new products wont be delivered in time.

  • Install the wrong product for your slope, frame or environment. See these tips on choosing the right shingles.

  • Take unnecessary safety risks.

It’s because of these unforeseen problems that many people, even those who know what they’re doing, leave it to the professionals. Expert contractors will ensure that:

  • You get the right product for your home and

  • The project goes according to schedule.

  • The crew takes steps in proper order and without delay.

  • They catch problems early enough to manage, such as damaged timbers.

  • They follow proper safety precautions.

If youre confident in your skills, see this advice on DIY roofing. However, given that a lasts anywhere from 25 years to the life of the building, it can be well worth it to hire a professional. To start on the right track, find a roofer near you.

Consult a Contractor for a Roof Replacement

Roof Shingles Cost By Warranty

How much does it cost to replace your roof in Maryland and ...

Because replacing a roof is costly, consumers should weigh the cost of longer-lasting shingles with the potential for a need to replace less often. If you live in a climate that is extremely hot or cold, prone to excessive rain or snow, purchasing shingles that have a longer warranty is a wise decision. Pricing may vary according to brand, and many of the major brands now offer a limited lifetime warranty on their shingles. You can buy shingles with the following warranty expectations :


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Slate And Custom Stone Roofing Is Very Expensive

Slate roofs can last 50 150 years and they are beautiful. Selecting slate roof tiles and design can be difficult to select. Amazing curbside appeal. Slate really should only be installed on high-dollar luxury homes that are in neighborhoods with home values over 1 million dollars. Otherwise as beautiful as they are, you will never re-coup the investment on re-sale of the home. The same is true for Cedar roofs and Clay tiles. Custom stone roofs are specialty roofs that need a lot of expertise in installing and even when installed perfectly, they can still need maintenance as pieces of stone or tiles can come loose. Some of these roofs can be delicate as well. For example, if someone walks on the roof, tiles can crack and break loose. When considering replacement of a specialty roof, unfortunately the roof will likely need to be replaced with the same material to avoid hurting resale value and damaging the look of the home. Replacing a slate roof with a shingle roof can prove to be an ugly and costly mistake.

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Whole House Renovation Cost

The average cost to renovate a whole 1,200 sq. ft. house is $18,000 to $72,000, while remodeling a 2,000 sq. ft. home ranges between $28,000 and $115,000. Prices depend on the extent of the remodel, quality of materials, and if structural changes are made to the layout.

Whole house renovation cost by size

Square feet
100% $15,000 $50,000

Also Check: Metal Roofing Screw Pattern

Factors That Impact The Cost To Tear Off And Replace Your Roof

Now you know the average cost most homeowners pay to tear off and replace their roof. But remember, there are a lot of factors that determine how much youll actually pay.

Because you need to understand the why behind the price, lets get to the 9 factors that impact the cost to tear off and replace your roof.

Additional Roof Replacement Materials And Features

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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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Bay Window Roof Replacement Cost

To replace a bay window roof with architectural asphalt, you can expect to spend $398 for a 12 square foot perch.A typical bay window is 7 feet wide, and your bay window roof will extend 24 from your wall. Add another 6 inches for the roof to extend over the front of the window. The chart below shows the price for architectural asphalt shingles, clay tile, and copper roofing.

Bay Window Roof Replacement Cost

  • Pay for permits

Are There Any Hidden Costs In Getting My Roof Replaced

As well as the typical costs for a roof replacement that weve outlined above, there are a few extra costs to consider, including:

  • Access

Depending on the layout of your property, a roofing contractor may require scaffolding to be erected which can cost up to £1,000 on a large family house.

  • Waste

Some roofing contractors may factor in waste disposal services into your quote, but any roof replacement job will require old materials to be disposed of. Typically, hiring a skip will add on £200 to the bill.

  • Guttering

Depending on the type of roof replacement, things such as guttering, soffits, battens, fixes and facias may also need to be replaced. These will usually be billed separately.

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What Are The Advantages And Disadvantages Of A Flat Roof

Flat roofs are no longer just for commercial space. They have grown in popularity in recent years, and for good reason. Flat rooflines have a modern appeal that beautifully complements a wide variety of home designs.

Other benefits include:

  • Better energy efficiency than traditional pitched roofs, according to Energy Star
  • Much more versatile and easily transform into a rooftop patio or greenspace
  • Completely safe to walk on when properly sealed and treated

Flat roofs do come with their downsides, however. For starters, they do not work on every home design, and installation and repairs are difficult to DIY. Also, flat roofs are not ideal for homes in colder climates with heavy snowfall. The low-grade slope may slow drainage, leading to pools of water and ice dams during the winter months.

Have More Questions About Your Flat Roof?

I Cost To Replace Roof

Things to Know Before You Redo the Roof

One of the biggest factors influencing the cost of a roofing job is whether to do an overlay or replace the roof. Replacing a roof costs roughly twice the amount to overlay, while re-shingling a roof that actually needs to be replaced can be ruinous . Angies List lays out many of the pros and cons here.

Given the right circumstances, either an overlay or a reroof can be sensible, but your contractor should be able to provide a clear rationale for their recommendation.

There are two types of mistakes that are very dangerous with overlays. First, New York building code limits contractors to adding one layer of roofing shingles over the original one. Also, you can only add shingles over 3-tab shingles, never architectural shingles.

Heres why:

  • First, a layer of shingles placed over architectural, or dimensional shingles isnt likely to last long. Its like duct taping a bumper back on a car.

  • Second, an improper overlay will harm the structural integrity of the entire roof.

  • Finally, if theres any underlying damage, mold or rot, it will go unnoticed and become far worse.

We know roofing shingles arent a day-to-day topic of conversation for most people, so heres an article that lays out the distinction between 3-tab and architectural shingles.

Here are the average costs for each type of roofing job we do at B& B Siding:

  • Overlay: $6,000 to $8,500

  • New roof: $13,000 $25,000*

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The Average Cost To Tear Off And Replace Your Roof

Its impossible to give you an exact price because of the many factors that go into the cost of replacing a roof . However, I can give you the average cost to tear off and replace your roof for a standard middle-class home that many homeowners have.

Most homeowners can expect the average cost to tear off and replace a roof to be around $12,000 to $15,000. This price is based on a home with 3 bedrooms, 2 bathrooms, a walkable roof pitch, a little roof complexity, and dimensional asphalt shingles.

The cost to tear off and replace your roof could be less, more, or fit right in the price range above. You wont know the exact cost until a local roofing contractor comes out to inspect your roof.

Shingle Roof Installation Cost

The total cost of installing a shingle roof consists of both material and labor costs. Labor is a significant factor and can comprise as much as 60% or more of the total project cost. So, for a job that ends up costing $12,000, at least $7,600 of that goes toward labor costs.

With labor, you may need to pay to tear off and dispose of the old shingles and underlayment. In some cases, it may be possible to leave the existing shingles in place and to install the new shingles on top.

Also Check: Roof Replacement Cost In California

Roof Pitch For Shingles

The pitch is the slope of your roof–the rise compared to the run or horizontal measurement of 12. For example, a roof that has a rise of 6 would be referred to as 6-in-12 or just 6-pitch.

Roofs with a very high pitch are more difficult to install, which increases the installation cost. It is harder for the roofer to walk or remain safe on a roof with a . So, there is often staging and additional equipment involved, which increases the length of time for the set up prior to installation. While installation may cost anywhere from $1.50 to $5.00 a square foot for a roof with an average pitch, these costs may be double or more for roofs with a higher pitch.

Low to medium-pitched roofs are the preferred standard for easier walkability for repairs and maintenance. A flat roof is prone to standing water and leaks while a high-pitch roof creates issues with installation, repairs, and maintenance.

Another aspect of knowing the roof pitch is to know the right type of roofing material to use for your particular roof, as well as what roofing supplies will be needed. Some roofing materials are better suited to high pitch roofs.

A pitched roof is any roof slope greater than a 3-pitch. A-frame houses have a 12-pitch, but some roofs are even more pitched than that. Most pitched roofs in todays construction industry are built using asphalt shingles.

What Are The Signs That My Roof Should Be Replaced

How To Refinish a Roof Rack

Occasionally, roofs can reach the point where repair or restoration work just isnt enough to prevent serious damage and leakage. In these instances, a full roof replacement would probably be the best solution to address all of the underlying issues.

The signs to look for which indicate that youre likely to need a new roof including the following:

  • Water damage

If you spot the tell-tale signs of staining on your interior walls and ceilings, youre likely experiencing water damage as a result of a rooftop leak.

  • Ageing

If you havent replaced or carried out repair work on your roof for over 25 years then youll likely need a roof inspection in order to access if any action needs to be taken to prevent potentially leakage.

  • Misshapen or missing shingles

You might be in need of a roof replacement if your shingles are looking misshapen or are missing granules after heavy rainfall.

  • Chimney flashing

If you have old rooftop flashing made from cement or tar, it may be worth replacing this to prevent potential leakage.

  • Roof valleys

If you notice missing shingles near your roof valleys then your roof is damaged and in need of repair or replacement.

  • Shingle granules in the gutters

If your roof is an inconsistent dark colour then this is likely a sign that your shingle granules are wearing out.

  • Daylight

If you spot any daylight seeping in through the roof of your attic, then its likely your roof will need to be replaced.

Comparing Quotes Could Save You Up To 40%:

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Follow These Guide To Water Proof Your Roof:

step 1

Remove all debris such as leaves, branches, and accumulated dust from the roof. You may need a soft brush to do this work

step 2

Use soapy water and pour on the roof. Leave it for some minutes to allow softening of dirt and debris that stuck on the roof.

step 3

Use a long and soft bristle brush to clean the roof.

step 4

Rinse with clean water and let it dry.

step 5

Around any projections, dents, and junctions to the roof, cover or apply a sealant it may be a liquid, or a tape. Allow time to dry or cure

step 6

Coat your RV with a good coat that is waterproof or water repellant. Some have sealants mixed. Coat every corner of the roof including around any projections from the roof.

step 7

Leave to cure. Your roof is water proof.


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