Flat Roofing

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A flat roof is a popular style of roofing. It’s most commonly found on buildings like sheds, garages and single-storey extensions. There are lots of different types of roofing material, which vary in durability, price and finish.

Product Overview

Types of Flat Roofing Material

Felt
Asphalt
EPDM Rubber
GRP Fibreglass
PVC
Felt

Felt

Felt is a common roofing material, found most frequently on garage and shed roofs. It’s applied in sheets by using a flame to soften one side to make them sticky, and then layering them on top of each other. It’s popular because it’s relatively cheap and repairable.

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Price

From £2 per sq m

Installation time

1-2 days


Advantages and disadvantages
  • Suitable for any size of roof
  • Lightweight
  • Cheaper than other flat roofing material
  • Has a short lifespan compared to other roofing materials – about 10 years
  • Can be damaged by extreme hot or cold weather
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Asphalt

Asphalt

Asphalt is another common roofing material. It’s versatile and can be applied to most roofing structures. Asphalt is prepared for roofing by heating it up in an asphalt boiler and then trowelling it on. It is also used for paving, flooring and damp proofing.

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Price

From £14 per sq m

Installation time

1-2 days


Advantages and disadvantages
  • Extremely durable – can last for over 30 years
  • Easy and relatively cheap to repair
  • Suitable for any size of roof
  • Has a smooth, clean finish
  • Heavy – not suitable for weak or flimsy roofs
  • Laid as a thick liquid, so unsuitable for sloped roofs
  • Can be brittle when set
  • More expensive than felt roofing
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EPDM Rubber

EPDM Rubber

EPDM stands for ethylene propylene diene monomer, which is a type of synthetic rubber. It can be cut to fit any size roof, and is installed in one layer. It’s lightweight, elastic and tough, which makes it suitable for lots of different types of roof.

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Price

From £6.50 per sq m

Installation time

1-2 days


Advantages and disadvantages
  • Long lasting – it has a life span of over 25 years
  • Durable – weather and UV light resistant
  • Relatively cheap to repair
  • Lightweight
  • Difficult to recycle
  • Made with non-renewable materials
  • More expensive than felt roofing
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GRP Fibreglass

GRP Fibreglass

GRP stands for glass reinforced plastic. GRP fibreglass is a popular roofing material due to its light weight and durability. It also looks good; it comes in lots of different colours and has a smooth finish. It’s suitable for any roof size or shape, and is used on domestic and commercial buildings.

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Price

From £30 per sq m

Installation time

1-2 days


Advantages and disadvantages
  • Durable – weather and corrosion resistant
  • Lightweight
  • Versatile – can be applied to any size or shape of roof
  • Long lasting – it has a lifespan of over 25 years
  • GRP fibreglass is usually more expensive than felt, asphalt and rubber roofing
  • Can only be installed in dry weather conditions
  • Inflexible
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PVC

PVC

Polyvinyl chloride, or PVC, is another common flat roofing material. It’s laid in one layer, like EPDM rubber, and is heat welded on. PVC is a popular choice because it’s tough, long lasting and lightweight.

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Price

From £14 per sq m

Installation time

1-2 days


Advantages and disadvantages
  • Durable – weather and UV light resistant
  • Lightweight
  • Can last for over 30 years
  • Flexible
  • Its production, use and disposal damages the environment
  • May shrink over time
  • Can be more expensive than felt, asphalt, fibreglass and rubber
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Prepare for your project

Estimated budget

£2 per m²
Low Estimate
£30 per m²
High Estimate

Costs vary for flat roofing projects depending on several variables, including:

  • whether you’re looking for repair work or roof replacement
  • the size of your roof
  • how easy it is to access your roof
  • your location

To get precise prices for your flat roofing project, get up to 4 quotes from reputable companies.