Flat Roof Cost in Ireland

John McEvoy
December 16, 2023

Wondering about flat roof costs? You're not alone. With prices varying due to materials, location, and size, it's easy to get overwhelmed. But fear not! We've simplified everything for you.

Well, first of all, keep in mind that choosing the right roofing solution isn't just about the immediate costs. It's about the value it brings over time. Flat roofs offer durability, versatility, and ease of maintenance, making them a prime choice for homeowners.

So, let's dive deep into the world of flat roofing with HP Roofing by your side and ensure your home stands strong, rain or shine.

Different Types of Flat Roofs and Their Costs

Now let's take a look at the various types of flat roofs and their corresponding costs.


Torch-on-felt is a great choice for flat roofs. It lasts a long time, about 15–20 years. You roll it onto your roof with a torch. The heat makes it stick hard to the surface. Torch-on-felt does not cost much compared to other materials.

For each square foot of your roof, you pay around 1.30–2.20 based on the plies used. This saves more than fixing a broken roof, which can cost up to €700 on average!  Well this is a general  cost estimation to know right amount of services visit to our website, HP Roofing. i.e., we find that torch-on-felt meets most people's needs well and sits light on their wallets too.


Fibreglass is a popular option for flat roofs in Ireland. It offers durability and can last up to 25 years with proper maintenance. The cost of fibreglass roofing varies depending on the size of the roof, but it is generally considered affordable compared to other materials.

Fibreglass also provides excellent waterproofing properties, which help protect your home from leaks and water damage. Additionally, fibreglass roofs are lightweight and easy to install, saving you time and labour costs.

Overall, fibreglass is a reliable choice for homeowners looking for a cost-effective and long-lasting solution for their flat roofs.

Zinc Roofing

Zinc roofing is a popular option for flat roofs in Ireland because of its durability and modern look. It can last for about 40–60 years, which is longer than other materials. The cost of zinc roofing can vary depending on the size of your roof and labour costs, but it generally ranges from €10 to €15 per square foot.

Although it may be more expensive upfront compared to other options, zinc roofing requires minimal maintenance and has a long lifespan, making it a cost-effective choice in the long run.

Additionally, zinc roofs are environmentally friendly as they are recyclable and energy-efficient. Overall, if you're looking for a durable and stylish flat roof option, zinc roofing is definitely worth considering.

Copper Roofing

Copper roofing is another option for flat roofs. It has a unique and attractive appearance that can enhance the overall look of your home. Although initially more expensive compared to other materials, copper roofs are known for their long-lasting durability and low maintenance requirements.

In fact, copper roofs can last up to 50 years or even longer with proper care. Additionally, copper is resistant to corrosion and can withstand extreme weather conditions, making it a reliable choice for Irish homeowners.

While the cost of installing a copper roof may be higher upfront, the long-term benefits make it a worthwhile investment.

Lead Roofing

Lead roofing is a popular option for flat roofs. It offers durability and long-lasting protection against the elements. While it may be more expensive upfront compared to other materials, such as torch-on-felt or fibreglass, lead roofing can last for several decades with proper maintenance.

The average cost of lead roofing installation can range from €15 to €25 per square foot, depending on the size and complexity of the roof. It is important to consider factors like repairs and replacement costs over time when budgeting for lead roofing.

However, its longevity and reliability make it a worthwhile investment in the long run.

TPO Flat Roof

TPO Flat Roof are a popular choice for homeowners in Ireland. They are made of a single-ply membrane that is heat-welded together, providing excellent durability and protection against the elements.

TPO roofs have a life expectancy of around 20 years, making them a long-lasting and cost-effective option.

When it comes to the cost of TPO flat roofs, several factors come into play. The size and complexity of your roof, as well as any additional features like skylights or chimneys, may impact the overall cost.

Additionally, labour costs can vary depending on where you live in Ireland.

It's important to note that while TPO flat roofs may require less maintenance than other types of roofing materials, repairs can still be necessary over time. On average, repairs for TPO flat roofs can range from around €600 to €900.

However, these costs can vary depending on the extent of damage and location.

Factors Affecting Flat Roof Costs

Flat roof costs can vary depending on several factors, such as repairs and replacement costs, roofing material costs, the size and complexity of the roof, as well as labour costs.

Repairs and Replacement Costs

Flat roof repairs and replacement costs can vary depending on the extent of the damage and the materials used. On average, flat roof repairs can cost around €700, with some repairs costing as high as €1,100 and others costing as low as €300.

However, it's important to consider that these repair costs are relatively low compared to the potential savings in the long run. If your flat roof is showing signs of damage or leaks, it's crucial to address them promptly to avoid more extensive and expensive repairs down the line.

When considering replacement costs, it's essential to factor in factors such as roofing material costs, labour costs, and even the size and complexity of the roof. By comparing quotes from different roofing companies, you can determine the best price for your specific repair or replacement needs.

Roofing Material Costs

In determining the cost of flat roofs, the materials used are a crucial factor. This is due to the various materials available on the market, each with its own price range and unique properties. Below is a comprehensive table showing the different materials and their respective costs.

Roofing Material Price Range per Square Foot

  • Torch-on-Felt: €2.50-€5.00/sq ft
  • Fibreglass: €4.00–€7.00/sq ft
  • Zinc Roofing: €5.00–€12.00/sq ft
  • Copper Roofing: €9.00–€14.00/sq ft
  • Lead Roofing: €5.00–€8.00/sq ft
  • TPO Flat Roof: €3.00–€5.00/sq ft
  • Modified Bitumen: €1.30 - €2.20/sq ft
  • Rolled Asphalt: €1.30-€2.20/sq ft
  • Tar Roof: €2.00-€5.00/sq ft

The costs stated above may fluctuate based on various factors, including your location and the complexity of your roof. It's worth noting that while zinc roofing is growing in popularity, the costs remain significantly high. 

On the other hand, materials like modified bitumen and rolled asphalt are more cost-effective. Remember, it's not just the upfront cost you should consider. Think about the longevity and durability of the material, as this could save you money in the long run through fewer repairs or replacements.

Size and Complexity of The Roof

The size and complexity of your roof can have a significant impact on the cost. Smaller roofs generally cost less to repair or replace compared to larger ones. This is because they require fewer materials and take less time to complete the work.

On the other hand, if your roof has multiple levels, unusual angles, or unique features like skylights or chimneys, it may be more complex to install or repair. This could increase both material and labour costs.

It's essential to consider these factors when getting quotes from roofing companies, as they will affect the overall price of your flat roof project.

Labour Costs

When it comes to the cost of installing or repairing a flat roof, labour costs are an important factor to consider. Hiring professional roofing contractors is essential to ensuring that the work is done correctly and to a high standard. 

Labour costs can vary depending on factors such as the size and complexity of the roof, as well as location and any additional requirements. It's worth comparing quotes from different roofing companies to find the best price for your flat roof project. 

Remember that while labour costs may be a significant part of the overall expenses, they are necessary for ensuring a durable and long-lasting flat roof solution for your home.

Benefits of Flat Roofs

  • Cost-effectiveness: Flat roofs are often more affordable to install compared to pitched roofs, making them a cost-effective choice for homeowners.
  • Durability: With proper installation and maintenance, flat roofs can be extremely durable and withstand harsh weather conditions.
  • Versatility in Design: Flat roofs offer great flexibility in design options, allowing homeowners to create unique outdoor spaces such as rooftop gardens or terraces.
  • Easy Maintenance: Maintaining flat roofs is relatively easy due to their accessible nature, which can save homeowners both time and money on repairs and upkeep.


Flat roofs can be a cost-effective option for homeowners in Ireland. While the initial installation costs may vary depending on factors such as size, materials, and complexity of the roof, flat roofs have lower maintenance and repair costs compared to pitched roofs.

The average cost of flat roof repairs is around €700, which is relatively low compared to the potential long-term savings. Additionally, the difference in cost between a flat roof and a pitched roof is minimal.

To get the best price for your flat roof repairs, it's recommended to compare quotes from different roofing companies.


Flat roofs are known for their durability. They can last for about 15–20 years, making them a long-lasting option for homeowners. With proper installation and regular maintenance, flat roofs can withstand harsh weather conditions and provide reliable protection against leaks and damage.

This means fewer repairs and replacement costs in the long run, saving you money on maintenance expenses. Additionally, materials like zinc roofing are gaining popularity due to their excellent durability and resistance to corrosion.

So if you're looking for a roof that will stand the test of time, consider installing a flat roof with HP Roofing.

Versatility in Design

Flat roofs offer homeowners a lot of design flexibility. Unlike pitched roofs that have limited options, flat roofs can be used as outdoor living spaces, gardens, or even rooftop terraces.

They can also accommodate solar panels and green roof systems, which help reduce energy consumption and promote environmental sustainability. Additionally, the sleek and modern appearance of flat roofs adds a contemporary touch to any home's overall aesthetic.

With various materials available such as torch-on-felt, fibreglass, zinc roofing, and more from reputable Irish roofing companies who provide free quotes for comparison purposes - designing a versatile flat roof that suits your style and needs is easier than ever.

Easy Maintenance

Maintaining a flat roof is relatively easy and cost-effective. Regular inspections and simple upkeep can help prolong the lifespan of your roof. Clearing debris, such as leaves and branches, ensures proper drainage and prevents water damage.

Checking for any signs of wear or damage, like cracks or blistering, allows you to address issues early on before they become costly repairs. If you notice any problems, it's important to consult with a professional roofing contractor who can provide expert advice and assistance.

By staying proactive with maintenance, your flat roof can continue to protect your home for years to come.


End your roofing worries with a flat roof that stands the test of time. Compare, contrast, choose, and cheers to a smart, lasting investment! The cost of a flat roof can vary depending on factors such as materials, size, and complexity. 

However, it is important to consider that flat roofs can be cost-effective in the long run due to their durability and low maintenance requirements. Comparing quotes from different roofing companies is recommended to ensure you get the best price for your flat roof repairs.

Contact us today!

HP Roofing is a team of residential & commercial roofing contractors and solar panel installation experts in Dublin. We offer a wide range of services, from roof repairs and replacements to solar PV installations and maintenance, with quality beyond expectations.
Call HP Roofing 01 453 3366

Frequently Asked Questions

What is the cost of installing a flat roof?

The cost of a new flat roof installation varies depending on size and roofing material prices, but it typically includes both roofing labour costs and materials.

Can I get an estimate for flat roof repair costs?

Yes, most roofing contractors offer estimates for services like roof repairs or replacements. They use tools such as a roofing cost estimator to predict exact expenses.

Are fibreglass roofs expensive?

Fibreglass roofing prices can vary. The total cost will depend on factors such as the size of your roof and whether it's a new installation or just repair work.

How much does a pitch conversion from a flat to a pitched roof cost?

Roof conversion expenses can be high because this job requires big changes in structure and design, plus extra materials are used than normal repairs.

Is garage roof replacement costly?

The price of a garage roof replacement may change based on its size, the type of materials used, and the fees charged by the contractor involved in doing the work.

Does the price of my flat roof depend on my location?

Sometimes location affects labour charges, which can push up overall roofing expenses Also, if rare options are selected, those might not be available nearby, increasing shipping charges and thus making the full price higher.

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.
Founder @ HPRoofing

The founder of HP Roofing, with years of industry experience, providing top-notch roofing and solar panel services for residential and commercial properties in Dublin, delivering high-quality and customised solutions that combine both aesthetic appeal and durable functionality.