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How Much Does A Garage Roof Cost

Whether You Need To Strip The Old Roof

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Sometimes you dont need to strip the roof and you can have a new one laid on top of the old one. This doesnt always apply though if you are having a fibreglass roof fitted.

Stripping a garage roof will save you a few hours of labour if you do it yourself or it might be included in the quotation for a replacement garage roof.

How Much Does Flat Roof Replacement Cost

Different suppliers will charge differing prices, but flat roofs tend to be cheaper to replace than standard designs.

Depending on what needs fixing, a flat roof replacement will cost between £1,440 – £3,400 and charged at £45 – £100 per m².

There can be additional costs, which generally occur if the contractor needs to replace either the guttering, fascias or soffits. Similarly, if contractors need to fit any extra insulation to help the roof meet building regulations, then this will also be charged.

Garage Roof Replacement Cost

Garage roof replacement costs $1,000 to $2,500 on average, depending on the size, pitch, and materials. Installing a new roof on a 280 square foot 1-car garage costs $1,000 to $2,000, and a 400 square foot 2-car garage runs $1,500 to $3,200, depending if it’s asphalt or metal.

Garage Roof Replacement Cost

The garage sizes used for the table above are:

  • 1 car – 12 by 12
  • 2 car 20 by 20
  • 3 car 36 by 24

The prices you see locally will be more or less depending on where you live, time of year, and the pitch of the roof. These prices would be the same if you were looking for the cost of a new roof for a detached house or workshop of a similar size.

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Epdm Rubber Roofing Replacement

EPDM is a perfect both as a replacement garage roof material or for newly built garages. They are very lightweight, flexible and longer lasting. Unlike felt roofing materials, you do not need heat during the application, and itll last a long time.

They generally have over 50 years of life expectancy and theres very little maintenance required for your EPDM roofing too. This makes EPDM garage roof replacement cost to be a great investment that provides cost savings over the long term.

Preparation For All Roof Types

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First, for any type of roof, you should remove the existing roof material. If it is felt or rubber you can either strip it off or use a flat spade with a hammer and chisel for pieces that dont come off easily, and a stripping knife for small gaps where your spade doesnt fit.

When the felt is off, inspect the boarding. If it is in good condition, you can carry on and lay your new roof. If the decking is in poor condition, youll need to remove it by replacing the wood if necessary

Remove the timber fillets and the decking. Use a circular saw to cut the wood into pieces that can be handled and disposed of easily.

Inspect the joints. Sweep them first and remove any nails which could be sticking out of the woodwork.

Laying new decking. Lay the boards with the writing side up.

Leave a 25mm gap where the deck meets an abutting wall.

If youre not using tongue and groove, youll also need to leave a gap of 3mm between the facing of each board and tape and bandage each board joint.

Add the appropriate trims and sweep the roof decking.

Now, its time to bandage the edges of the roof and the roof joints. This is done to strengthen the trims and joints.

Make sure there are no lumps or air bubbles. You can get rid of these by going over the bandage with a small roller.

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The Average Cost To Replace A Garage Roof

A garage is usually quite a bit smaller than a house, so your Casselberry garage roof replacement cost will be less than re-roofing your home. The typical two-car garage can come in a variety of sizes, but a common measurement is 24 x 24 feet, for a total of 576 square feet. The average cost to replace a garage roof is between $2,700 and $4,750, but this can vary greatly depending on where you live, the total size of your garage, and other factors we will discuss next.

Barn Roof Replacement Cost

The cost of a barn roof replacement ranges from $3,000 to $7,100. Barns use a wide range of materials but are commonly done to match the nearby home. Most barns are pitched between 4/12 and 7/12 to accommodate storage. This makes the barn fairly easy to work on, keeping costs low. Total costs are mostly dependent on the barn size and material type. Larger barns have higher costs.

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How Much Roofing Do I Need

The amount of roofing materials it takes to cover an incline is more than if the area was completely flat. If you have a flat roof, then the square footage of the uppermost floor of your house is the total for materials needed plus 10% more for waste. Traditional roofs that have an angle on most surfaces need to have the angled area factored into the total square footage.

What Is A Garage Roof Replacement

Replacing a garage flat roof

As the name suggests, this involves replacing the entire roof of your garage. In most circumstances, this simply requires replacing the tiles, sheets or membrane used. Although, you may also need to replace the timber or steel framework in some cases.

The complexity of any garage roof replacement can vary. This is as some materials are easy to remove and replace, whilst others are far more involved. Because of this, the cost of labour can vary as well as the price of the materials.

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How Much Does It Cost To Buy And Install A Skylight

On average, a roof window will cost you between £1,100 and £2,000.

A new skylight or roof window could add a lot more natural light to your home, improving ventilation and helping you cut down on your energy bills.

How much you spend installing a new skylight or velux window depends on the type of window you want, and the size you want it in.

Average Price Of Replacing Your Roof Vs Repairing

The national average cost to repair a roof ranges from $200 to $3,000, with most people paying between $225 and $1,150 depending on the extent of the damage, and the type of roofing materials on the roof that needs repairing. If there is either extensive damage or your roof is about 20 years old, and it needs replacing, the average price to replace your roof is around $7,211.

Roof Repair Cost


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Roofing Labor Cost Per Square

With a few different variables at play, roofing labor is generally between $1.50 and $3.00 per square foot. If your roofing professional is using Per Square in the bid , their prices for labor will reflect this multiplied out by 100 to show between $150 and $300 per square. According to the United States Census, the average roof is 17 squares or about 1,700 square feet.

Cost To Replace Roof Decking Or Plywood Sheathing On A Garage Roof

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It may be necessary to replace the garage roof decking underneath the asphalt shingles. Extensive water damage or leaks can cause the plywood sheathing to rot, in which case, replacing it is the only option. A standard plywood sheet generally measures 4 ft. by 8 ft. and costs between $14 and $21, depending on the thickness.

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Removing Old Roofing Vs Roofing

In most states, you can have up to two layers of asphalt shingles installed on your roof. Roofing-over, or putting one layer of shingles over another, can save you significant amounts of money on your new roof because you avoid the labor involved in removing the old shingles. Roofing-over does not have tear-off costs, lowering the projects cost by $1 to $2 a square foot. However, only asphalt shingles and some types of standing-seam metal can be used to roof over an existing set of asphalt shingles. This makes the cost range from $6,000 to $8,000 to roof-over most 2,000 sq.ft. homes.

Roofing-over presents some issues, however. Putting one layer of shingles on top of another or putting metal panels over existing shingles does not address potential underlying issues with your deck or underlayment. It also doubles the thickness of your roof and means the new shingles may not lay as flat. This can result in the new shingles lifting off more easily, which can cause the new shingles to deteriorate more rapidly if the underlying shingles have moisture problems. The next project will require a full replacement much sooner than if you had done it all at once the first time.

How Do I Know If My Beam Is Sagging


First, check to see if the beam is level. If it is not level, then it is likely sagging. Second, check to see if the ends of the beam are evenly supported. If one end is higher than the other, then the beam is likely sagging. Finally, check to see if the beam is plumb. If it is not plumb, then it is likely sagging.

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How Much Does A New Roof Cost

A new asphalt shingles roof for a typical 2,000 to 2,200 square foot single-family house can range in price from $9,500 to $16,500 fully installed, including tear off and disposal of the old roof . The pricing can range greatly depending on the contractor choice, roof size and difficulty, and local real estate market conditions.

Asphalt Shingles Average Cost

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Average Price Per Square Foot Across the US, a typical architectural asphalt shingle roof will cost between $4.00 and $6.00 per sq. ft. to install, depending on the brand and type of shingles, and project specifics variables. This pricing range normally includes all the necessary materials and supplies, tear off and disposal of the old roof , dumpster and disposal fees, site plans and building permits required by the local building departments, professional installation, and a comprehensive contractors workmanship warranty.

In the high cost of living areas like San Francisco Bay area, San Jose, Los Angeles, San Diego, Portland, Seattle, Portland, Boston, NYC, the greater Washington DC, and Northern Virginia, homeowners can expect to pay between $5.00 and $8.00 per sq. ft. to replace a roof on a typical 2,000-2,200 square foot house with mid-range architectural shingles like GAF Timberline or OC Duration. This range exceeds the national average due to the disproportionately higher cost of living in expensive coastal cities compared to American heartland.

Will A Roofer Replace The Fascia And Soffit During My Roofing Project

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You may or may not need the roof framing repaired and strengthened, sheathing replaced, or soffits, facia, flashing, etc. replaced at the same time as your roof. In most cases, it is unlikely that you will need an entirely new roof with everything replaced, but certain parts of your roofing system might need repairs made to prevent leaks after the new roof has been installed.

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What Are Some Ways To Save Money On Replacing Your Roof

There are a few things you can do if you want to save money on your roof without sacrificing major items like quality of product, professional installation, and extended warranties. One of the first things you can do lower the cost of your roofing project is to select a different type or model of shingle. Asphalt shingles are going to be the least expensive whereas synthetic slate or shake shingles are going to be toward the more expensive end, so if you want to save a few bucks per square foot you should choose from different asphalt shingles.

What Does Replacing A Garage Roof Entail

There are many different types of roofing material with which you can replace your existing garage roof. One of the most popular materials to use these days for a flat roof is EPDM rubber as it is very durable, easy to lay and can be fitted in a matter of hours.

The following step by step guide will describe replacing an existing bitumen felt flat garage roof with an EPDM rubber material.

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Roof Tile Replacement Cost

Roof tile replacement costs between $1,400 and $1,600 per square on average for concrete tile, Spanish tile, and clay tile. Tile roofing tends to weight a lot and will cost $1,000 more if your entire roof framing needs an upgrade to support the extra weight.

Clay Tile Roof Cost

Clay roof tiles are right up there with entry-level copper in regards to price, which averages around $1,500 per square. The average cost to install a new clay tile roof costs between $15,000 and $45,000 depending on your roof size.

Concrete Roof Tile Prices

Like clay tiles, concrete tiles also carry a $1,500 per square price, with the average installation costing $22,500 to $30,000. Depending on the current structural integrity of the roof framing, it is possible some repair or strengthening work will need to be done on the rafters to support the extra weight of these heavier products.

Spanish Tile Roof Cost

Spanish roof tiles generally have a little more design to them than entry-level clay or concrete, and you can expect to pay in the region of $1,500 to $1,600 per square for the install, and around $1,000 first if your entire roof framing needs work to support the added weight.

Signs Of Water Damage From Inside Your Garage

Garage Roof Replacement Cost

From inside your garage, it can be easy to spot signs of damage to the roof. In most cases, these require further investigation to assess the extent of the damage and repair cost. Here is what to look for:

  • Brown marks on the ceiling or wall caused by water stains.
  • Black, green, or brown patches of mold where dampness occurs.
  • Water leaks after rainfall.

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Costs For Roof Replacement Vs Roof Repair

Since the cost of replacement is so steep, you may be wondering if you can patch the leaks or replace a few shingles. This is possible in the following cases:

  • Your asphalt shingle roof is less than 10 years old.
  • Your roof is made of a highly durable material such as metal, slate, or tile.
  • The damage is limited to a small or shallow area.
  • You expect to live in your current home for a while and dont feel the need to upgrade your roof.

However, roof repair is a temporary fix. Even if youre not springing leaks faster than you can patch them, you may spend more on repairs than replacement if your roof is in bad shape. Consider a roof replacement in the following circumstances:

  • Your asphalt shingle roof is more than 10 years old.
  • The damage is severe .
  • Your roof experiences structural failure.
  • You want to add value to a home that you expect to sell in the next few years.
  • You want to improve your homes energy efficiency.

Partial replacement may be an option if the damage to your roof is limited to one side of the house. However, consider your long-term budget, as replacing your roof in phases will cost more than a complete replacement performed at once. There may also be some cosmetic complications, such as shingles not lining up correctly.

Removing A Garage Roof

If you intend to completely change the roof of your garage you will probably want to remove the original entirely and start from scratch. The question of whether you should do this work yourself or hire a builder or roofer will be down to your own confidence and capability, budget, and the timeframe you wish to complete the project in.

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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 versatility and ease of transforming 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.

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How Long Does It Take To Replace A Garage Roof

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The time it takes for a roof replacement will vary depending on the difficulty of the job, the type of materials used, and the size of your garage.

If you are completing the work as a DIY project, you can expect it to take considerably longer than if you were to hire professionals to complete the work for you.

On average, you can expect a professional garage roof replacement to take around 7-8 hours for a single roof and approximately 1-2 days for a double garage roof. A DIY garage roof replacement may take up to a week to complete.

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