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Flat Roof Materials

Flat Roof Materials

Flat Roof Materials

Flat roofs are a common sight throughout our cities, towns and villages. If you're looking to replace a flat roof, however, you may find selecting a flat roof material to be a daunting experience. With our vast range of flat roof materials, including roofing membranes and skylights, you're certain to find everything you need for your project at Roofing Megastore.

At the heart of our flat roof materials are EPDM membranes. These include those manufactured by trusted brands such as Classic Bond and Firestone, whose rubber roof membranes offer extensive gurantees. To accompany these membranes, we stock a vast range of adhesives, sealants and primers for your flat roofing project.

Those in search of flat roof materials will often require skylights too. Roofing Megastore are pleased to offer a growing range of options, including those within the Mardome range. These skylights are specifically crafted for flat roofing applications and offer innovative security features.

When choosing from our range of flat roof materials, you can choose from a range of major brands. These include Classic Bond, FirestoneShed Cover, Resitrix, DuoPly, Mardome and more. Each of these maintain a strong reputation for the quality of their products and durability they offer.

Everything you need for a flat roof

Everything you need for a flat roof

Top brands at the best prices online

Top brands at the best prices online

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Firestone RubberCover EPDM Membrane - 1.14mm

Firestone RubberCover EPDM Membrane - 1.14mm

1-3 Days

£8.82

price per item inc vat

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Firestone RubberCover EPDM Membrane - 1.52mm

Firestone RubberCover EPDM Membrane - 1.52mm

1-3 Days

£9.90

price per item inc vat

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Best Seller
Classic Bond - Cut To Size One Piece EPDM Rubber Membrane (1.20mm Thick)

Classic Bond - Cut To Size One Piece EPDM Rubber Membrane (1.20mm Thick)

1-3 Days

£9.20

price per item inc vat

£9.20

per m²

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Fast Delivery
Classic Bond - Cut to Size Premium One Piece EPDM Rubber Membrane (1.50mm Thick)

Classic Bond - Cut to Size Premium One Piece EPDM Rubber Membrane (1.50mm Thick)

1-3 Days

£11.59

price per item inc vat

£11.59

per m²

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Fast Delivery
Resitrix - Self Adhesive Reinforced EPDM Membrane 2.5mm (0.33m x 10m Roll)

Resitrix - Self Adhesive Reinforced EPDM Membrane 2.5mm (0.33m x 10m Roll)

1-3 Days

£91.92

price per item inc vat

£27.60

per m²

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Resitrix - Self Adhesive Reinforced EPDM Membrane 2.5mm (10m Roll)

Resitrix - Self Adhesive Reinforced EPDM Membrane 2.5mm (10m Roll)

1-3 Days

Multiple Sizes

Price From:

£91.92

price per item inc vat

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Fast Delivery
Resitrix - Self Adhesive Reinforced EPDM Membrane 2.5mm (0.5m x 10m Roll)

Resitrix - Self Adhesive Reinforced EPDM Membrane 2.5mm (0.5m x 10m Roll)

1-3 Days

£125.20

price per item inc vat

£25.04

per m²

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Fast Delivery
Classic Bond - Flat Rubber Roof Kit

Classic Bond - Flat Rubber Roof Kit

1-3 Days

Multiple Colours

Multiple Sizes

Price From:

£239.83

price per item inc vat

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Fast Delivery
Classic Bond - Garden Room Roof Kit

Classic Bond - Garden Room Roof Kit

1-3 Days

Multiple Colours

Multiple Sizes

Price From:

£152.48

price per item inc vat

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Wallbarn - M-Tray Wildflower Green Roof Kit with Geotextile Fleece

Wallbarn - M-Tray Wildflower Green Roof Kit with Geotextile Fleece

3-5 Days

Multiple Sizes

Price From:

£457.48

price per item inc vat

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Wallbarn - M-Tray Sedum Green Roof Kit with Geotextile Fleece

Wallbarn - M-Tray Sedum Green Roof Kit with Geotextile Fleece

3-5 Days

Multiple Sizes

Price From:

£445.74

price per item inc vat

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Mardome Trade - PVC Flat Roof Light - Clear

Mardome Trade - PVC Flat Roof Light - Clear

3-7 Days

Multiple Colours

Multiple Sizes

Price From:

£88.80

price per item inc vat

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WHAT'S IN YOUR BUDGET?

How to Calculate Your m²/ft²?

How to Calculate Your m²/ft²?

It’s actually very easy to calculate how many square meters or foot an area is, whether it is a simple rectangle or more complex shape. When dealing with a simple rectangle, just multiply the length by the width for your total square meterage or footage. If you’re dealing with a more complex shape, treat each area as a rectangle and perform the same calculation. Then combine the square meterage or footage of each area for to get the total area.

calculate m2 illustration

Common Questions

What is a Flat Roof? 

Any roof with a pitch below 10° could be considered ‘flat’. This is opposed to a pitched roof, which has a pitch above 10° and has a noticeable slope. The difference is important, as you’ll need to use different materials on a flat and pitched roof.

You’ll often find a flat roof on a garage, extension, or garden building. This is due to them being both easy and cost-effective to construct. Although, selecting a material for a flat roof can be a little more challenging. 

What Material is Used on a Flat Roof? 

Due to the low angle of a flat roof, you’ll need to use materials designed for low pitched applications. These materials will need to withstand challenges such as ponding water and debris build-up. 

Below are a few popular types of flat roofing systems. Each has been ‘tried and tested’ for decades, ensuring your roof is watertight and demands little maintenance. These choices suit various budgets and skill levels. 

EPDM

The most common type of flat roofing material is EPDM, a rubber membrane manufactured from ethylene and propylene. This membrane is fully waterproof, very tough, and incredibly long-lasting. 

Unlike other materials, EPDM can be easily installed by both homeowners and tradespeople. Once installed, you can expect your rubber membrane to provide a lifespan of up to 50 years with virtually no maintenance.

Fibreglass 

Another popular solution for flat roofs is fibreglass, a wet-applied membrane that combines glass fibres and polyester. This membrane is fully waterproof, easily maintained, and a long-term solution. 

In addition to offering a lifespan far shorter than alternatives, GRP supplies they can be far more challenging to apply. This is as the various resins must be formulated on-site and conditions must be perfectly suited.

Tar and Gravel

Whilst tar and gravel roofs are more common in the United States, you may find them throughout England, Wales and Scotland too. You build up multiple layers of tar and gravel to achieve a fully sealed, incredibly tough and low maintenance flat roof. 

By far the most difficult material to install, tar and gravel roofs typically demand the help of an experienced tradesperson. It is also accompanied by unpleasant smells and, in some cases, will demand several applications. 

How Much Does a Flat Roof Replacement Cost?

Whilst the cost of flat roofing materials can vary, you can expect to spend between £10 - £20 per square meter. However, this does not take into account the labour costs or equipment associated with installation. 

EPDM and fibreglass membranes are widely considered to be the easiest material to install for both homeowners and tradespeople. Often making them the most cost-effective material with no specialist tools being needed either. 

Tar and gravel, on the other hand, is a far more challenging material to apply. You can, therefore, expect to spend far more on labour and, if undertaking the task yourself, also expect to invest in specialist tools for the job. 

What is the Lifespan of a Flat Roof?

The lifespan of your flat roof is largely determined by the material used and the installation process followed. Whilst an EPDM membrane could last as long as 50 years, a fibreglass membrane could last as little as 10 years. 

To maximise the lifespan of any flat roofing material, it’s important to undertake regular maintenance. This is to prevent the build-up of debris, pooling water as well as other nightmare issues.