Flat Roof Kit Calculator

Launch the calculator below for the type of kit you need

3 quick and simple steps to create your flat roof kit

  EPDM GRP (fibreglass)
Does the product require a trained installer? No, our EPDM Rubber Roof Kits come complete with all the tools and instructions necessary if you wish to carry out the work yourself. We also have how-to videos so you can see exactly how it's done. No, our EPDM Rubber Roof Kits come complete with all the tools and instructions necessary if you wish to carry out the work yourself. We also have how-to videos so you can see exactly how it's done.
Cost Both EPDM and GRP flat rooking kits are similar in cost but the GRP (fibreglass) system can be more time-consuming to install due to extra preparation Both EPDM and GRP flat rooking kits are similar in cost but the GRP (fibreglass) system can be more time-consuming to install due to extra preparation
Life Expectancy EPDM can last up to 30 years if maintained properly GRP roofing can last up to 30 years if maintained properly
UV Resistance Yes, EPDM rubber roof membranes are manufactured to be UV stable as standard Yes, however, this is providing that the GRP resins are mixed correctly on-site before applying
Good Flexibility Yes, EPDM membranes are well renowned for their flexibility. They can stretch up to 300% without cracking or splitting. No, GRP roofs allow for only a small amount of movement through expansion and contraction. If applied too thick and a lot of movement occurs, cracks may develop
Strength BOTH EPDM and GRP flat roof surfaces are strong a durable BOTH EPDM and GRP flat roof surfaces are strong a durable
Fire Retardant Yes Yes
Seamless Installation Yes, our EPDM roof kits will be supplied in one sheet depending on the size. Yes, GRP roofs will be completely seamless as the Liquid will be applied on-site
Can they be repaired quickly and easily Yes Yes

What is EPDM Rubber Roofing?

EPDM is a synthetic rubber roofing membrane which is extremely tough and durable, its main composition ingredients are ethylene and propylene derived from natural oil and gas. EPDM is a very versatile flat roofing system that is used on a wide variety of buildings such as domestic, agricultural, commercial and industrial to name a few.

The EPDM synthetic rubber roofing membrane can be supplied in a variety of widths, lengths and thicknesses to suit your requirements. Our EPDM calculator does the work for you, simply enter the dimensions and choose the trims required for each side and within seconds you can have a made-to-measure EPDM rubber roof kit ready to be ordered and delivered within a few days.

EPDM rubber roofing has wide industry recognition for being an instant long-lasting flat roofing solution that Architects, contractors and roofing consultants all come to depend on. If you install an EPDM rubber roof, like the architects and consultants, you can be sure to have a flat roof that can last up to 30 years and still outperform other roofing materials.

So, try our EPDM rubber roof calculator today for a fast no-obligation quote for a complete roof kit, or call Roofing Megastore on 01295 565565 to discover more about EPDM roofing.

Where can EPDM Roofing Be Used?

We’ve created a list below to show you where EPDM can be used.

  • Flat roof extensions
  • Garage roofs
  • Shed Roofs
  • Green Eco Roofs
  • Flat Garden Roofs
  • Outbuildings
  • Beach Huts
  • Treehouses
  • Garden Building and Offices
  • Dormer Window Roofs
  • Bay Windows
  • Orangery
  • Re-roofing Flat roofs
  • Warm Deck roofs
  • Cold Deck roofs
  • Many more!
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What is GRP or Fibreglass Roofing?

GRP flat roofs, or otherwise known as Glass Reinforced Polyester (fibreglass roofing) is a flat roof system that is cold applied on site. This flat roof system achieves a completely seamless finish, remaining flexible and weathertight and also resistant to frost, water and heat.

Once the GRP flat roof is applied you will be left with a very impressive architectural finish that will last for years to come if maintained properly. Most fibre glass roofing systems can last up to 30 years with no visible sign of wear or damage.

The technology in Fibreglass flat roofs has advanced tenfold over the last few years and the products produced give perfect weather protection for any flat roof. GRP roofing products are suitable for DIY as well as tradesmen so even the first-time user can achieve an expert finish without compromise.

Fibreglass flat roofing materials must be laid onto a dry deck in dry conditions and not below 5 degrees centigrade.

So, try our GRP flat roofing calculator today for a fast no-obligation quote for a complete roof kit, or call Roofing Megastore on 01295 565565 to discover more about EPDM roofing.

Where Can GRP Roofing Be Used?

We’ve created a list below to show you where Fibreglass flat roofing systems can be used.

  • Flat roof extensions
  • Garage roofs
  • Shed Roofs
  • Outbuildings
  • Beach Huts
  • Tree houses
  • Garden Building and Offices
  • Dormer Window Roofs
  • Bay Windows
  • Orangery
  • Re roofing Flat roofs
  • Warm Deck roofs
  • Cold Deck roofs
  • Many more!
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