Phone Number: 01264 551 007

Is A Flat Roof Less Expensive Than Pitched Roofing

  • Posted by:
  • Admin
  • Tags:
  • Posted date:
  • 28-03-2022
Is A Flat Roof Less Expensive Than Pitched Roofing

Is a flat roof less expensive than pitched roofing? We look at the costs of flat roofing and if the cost benefits are better than with pitched roofing options.

Pitched Roofs Vs Flat Roofs - Which Is Right For Me?

Choosing between flat or pitched roofs is a crucial decision for many home or property owners during their building projects. 

It's best to know which would best suit your budget, the building's functioning, materials, aesthetics and overall requirements. Let's assess the pros and cons of each type of roofing design so that you can better understand which style will fit your project:

How Much Does A Flat Roof Cost?

The overall cost of any flat roofing will depend on the existing building material you have selected. The flat roof design you choose is incredibly cost-effective regarding efficiency and costs. The price of materials and labour costs amount to much less than any pitched roof construction. 

Here are some of the examples of chosen building materials and their rough estimation costs:

 Felt will cost around £50 - 70 m2 (square metre)

 EPDM is approximately £80 - 100 m2

 Fibreglass can be from £90 - 120 m2

Is A Flat Roof Less Expensive Than Pitched Roofing?

However, it's best not to take all these estimated prices at face value. The costs will vary hugely depending on the level of accessibility, the job details, the location, the expertise of your chosen trades-person and the size of the property you desire roofing for. 

How Much Does A Pitched Roof Cost?

Pitched roofs tend to have a wider variety of available materials to select from, so there are a few more costs that you can consider. 

For those looking to create durable, long-lasting structures for your home or property, here are some materials that we would highly recommend and the approximate costs that they'll set you back by:

 Zinc is approximately £60 - £80 per m2

 Natural slates are often between £90 - £120 per m2

 Clay tiles can be £30 - £65 per m2

How Much Does A Pitched Roof Cost?

Flat Roofing


In the past, flat roofing had conjured a relatively lousy reputation; however, in recent years, the new materials like hot bitumen and hot rubber that professionals utilise to construct them have given them incredible strength and added a few years to its lifespan. 

That extra strength has allowed them to grow more in popularity, so you are more likely to see these types of roofs cropping up in contemporary home designs. Flat roofs tend to be far more straightforward for builders to construct instead of pitched roofs, so numerous homeowners across the country are turning to them as a roofing style. 

The short duration of construction is ideal for those who wish to cut contractors' costs and extended periods of rent payable during the construction phase. 

Flat roofs also require fewer materials to construct, which allows for a price advantage. For those searching to increase the savings they make during their building or renovation project, flat roofs are the cheaper option and, therefore, your best bet. 

Compared to pitched roofs, flat roofs are incredibly compact because they take up less head height. Their compact design could be a massive benefit for those searching to build extensions or convert their garage. Ensure you gain the correct planning permission before flat roof installations so you don't exceed the recommended height limitations. 


EPDM is a common material used to make most flat roofs on homes and blocks of flats today. It is a material that helped flat roofs expand their shorter lifespan of 20 years up to 30; however, this is still almost 20 years less than the average lifespan of a pitched roof setup. For those that want to get more use out of their roof, pitched roofs may be a more practical option. 

You can help increase the longevity of the single-ply flat roof by laying an asphalt roof down; however, you must begin with a concrete base or another material with a similar level of strength for the foundation. 

Doing so will help make the flat roof more durable, yet we cannot guarantee that it will outlive the pitched roofing even with the extra work. Flat roofs can require far more maintenance than the pitched roof, which can be off-putting for buyers and homeowners as they incur increasing costs each day or year. 

Pitched Roofing


There are many reasons why someone chooses a pitched roof over a flat roof, and the most significant reason is their extensive longevity. Overall, pitched roofs tend to outlive their flat roof counterparts due to the materials used to construct them; they are often far more high quality. 

Pitched roofs need less maintenance over the years. They are constructed with incredibly rigid materials. Their sloping sides or slight pitch design help to efficiently drain away destructive rainwater that could eventually cause leaking or pooling and destroy the roofing. You want to choose a form that will be weather-resistant for your roof. 

By selecting pitched roofing, you can maximise the number of spaces inside your household. They have much higher ceilings, allowing you to choose taller wardrobes and cabinets for higher floor rooms to store your items better. 

The usable space will go a long way, meaning there's far more space for your money and modern design, so many see the pitched roof as more cost-effective in the long term. 

Future buyers are also an aspect to consider, especially if you wish to sell your home later. Pitched roofs are available in a greater variety of materials and styles. Therefore, they have plenty of visual appeal if you desire it so.  

Ugly roofs can often be an off-putting factor. Many find it challenging to make flat roofs look stylish. Pitched roofs provide a classic appearance that will help increase your home or commercial building costs and hopefully get a sale. 


One of the most significant setbacks of any pitched roofing is the cost. You'll have to be prepared to pay for incurs on contractor fees due to this type of roof taking far longer to install. The skill required and materials utilised will increase the construction bill far higher. 

It's essential to consider if local authorities will properly permit your pitched roof during the planning stage of your building project, loft conversion or renovation. Increasing the head height can be disputable both for permitted development rights and traditional planning permission. 

Local councils and authorities will look closely at the height of your new roof or your plans for its height and assess whether it would impact other properties in the neighbourhood, either by overshadowing others or obstructing the community aesthetically. 

Pitched roofs require less maintenance than flat roofs. However, if you eventually need repairs in the future, it will be more challenging for tradespeople to access your roof, making the service more costly, as they will have to spend more time on the labour.

Maintenance Costs:

It's best to know the overall costs and level of maintenance that the roofing materials require before blindly purchasing them, as this will let you know whether you're in for a more costly experience with your new roofing.

Flat and pitched roofs need regular maintenance and upkeep to survive and last through the years. However, out of the two, flat roofs often require further maintenance throughout their lifespan, even though pitched roofs can be more challenging to inspect and clean. Flat roof drainage doesn't have the same effect as pitched roof drainage; therefore, they require frequent inspections as the drains are more prone to becoming clogged with these roofs.

A clogged drain can later cause leaks and extreme damage if neglected. Your roof will always require a waterproof seal that you must frequently maintain to prevent issues such as leaking and costly repairs. Numerous flat roof leaks occur because of a grave lack of maintenance and regular inspections. So, it's best to make time to schedule roof inspection appointments if you choose the flat roofing style for your home or property.

For those living in areas, cities and countries with a more significant amount of rainfall, as we receive in the UK, you can utilise any money you save on having flat roofs professionally installed for future repairs. Flat roof repair tends to be far more expensive than the pitched roof because pitched roofs are less prone to the risk of damage from moisture in the air. In the long-term, pitched roofs can be far more affordable. 

Pitched Roofs Vs Flat Roofs - Which Roof Is Cheaper?

Improve Net has an efficient online roofing calculator depicting and comparing a wide range of roofing prices. 

According to their site, any flat roof is incredibly cheaper than a pitched roof. 

Are you looking for a flat roof specialist in Andover, Basingstoke or Winchester? If you find yourself in need of a replacement flat roof, don't hesitate to contact Flat Roofers Basingstoke today! We have staff on hand to answer any questions you might have.