Safe & Accredited

As members of the NFRC, the UK's largest roofing trade association, we always stay ahead of the curve when it comes to industry standards and Health and Safety regulations. Whichever flat roof system you choose, you can rest assured that our team will install it with the highest standards of quality and safety in mind.

Start-to-End Service

We'll be there with you from start to finish. We offer a complete service, from helping you design your new roof in detail to making sure it's built on time and on budget. We'll also keep you in the loop every step of the way, so you'll always know what's going on.

Ongoing Support

Still have questions after we’ve finished up? No worries! We offer ongoing support after installation. Whether you need help with a specific issue or just some general maintenance tips, we're only ever a phone call away.

Competitively Priced

Replacing your roof shouldn't cost an arm and a leg, which is why we offer some of the most competitive rates in Hampshire. You'll get all the benefits of a brand new roof without the hefty price tag you might expect!
Liquid Membrane Roof Cover

Your home's roof is its first line of defence against leaks, draughts, and anything else the elements might throw at it, but even the sturdiest roof can’t stay strong forever. That’s where flat roofing systems come into play. Designed to fit snugly over your existing roof, they provide an additional layer of protection while extending your roof’s lifespan for years to come.

At Green & Flat Roofing, we specialise in installing industry-leading flat roof covers. Built from premium materials and installed to the highest standard, they’ll give you the peace of mind you’ve been looking for.

What Flat Roof Covers
Do We Install?

We install four innovative roofing systems: liquid membranes, bitumen felt, single-ply, and lead flat roofs. You can learn more about each type below!

Liquid Roof Membrane

As the name suggests, a liquid roof membrane is applied in a liquid state and cures to form a seamless, waterproof roofing system. Here are some of its benefits:

  • Unlike traditional rolled roofing materials, which have seams that can be prone to leaks, a liquid roof membrane is ideal for complex roofs with many details and penetrations.
  • A liquid roof membrane can easily conform to uneven surfaces, making it a great option for waterproofing flat roofs.
  • A liquid roof membrane is typically made from a polyurethane or acrylic resin and applied in a cold-applied process, which means that no heat is required. This makes it a safe option for use on a variety of substrates, including metal, concrete, and wood.
liquid membrane flat roof
Bitumen Felt Roof

Bitumen Felt Roofs

A bitumen felt roof is made from multiple layers of felt material fused together with bitumen. Bitumen is a sticky, black substance derived from petroleum that acts as a waterproof binder. Here are some of its advantages:

  • The multiple layers provide strength, impact resistance, and excellent weatherproofing, making bitumen felt a long-lasting roofing option. It can withstand rain, snow, and even some foot traffic with ease.
  • Bitumen felt is a relatively inexpensive roofing material, making it a good choice if you're on a tight budget.
  • The basic design of a bitumen felt roof makes repairs or replacements straightforward, which means that experienced roofers can usually address issues quickly.

Single-Ply Roofs

A single-ply roof uses large, flexible sheets of material to create a watertight seal on flat or low-slope roofs. It’s most commonly used for commercial and industrial buildings, but can also be used on residential ones. Here are some of its key benefits:

  • A single-ply membrane is much lighter than a traditional built-up roofing (BUR) system, which can be a major advantage for buildings with weight restrictions.
  • A single-ply roof can be installed quickly and easily, with minimal disruption to building occupants. Unlike a BUR system, it doesn't require the (potentially dangerous) use of hot asphalt or torches.
  • Designed to create a watertight seal, a single-ply membrane is resistant to rain, hail, and snow. It can last for many years with proper care and maintenance.
single ply flat roof
Lead Flat Roof

Lead Flat Roofs

A lead flat roof is a roof covering made from sheets of lead - no surprises there! It’s a popular choice for several reasons:

  • Lead is incredibly durable, and a roof made from it can last for well over 100 years in some cases. This makes it a very cost-effective option in the long run.
  • Lead is highly resistant to water damage and the elements. It can withstand harsh weather conditions without degrading, making it a low-maintenance option.
  • Lead is a soft metal that can be easily shaped to fit complex roof features, such as around chimneys or skylights. This makes it ideal for intricate roof designs.

The right flat roof cover for your property depends on several factors, including:

  • Budget
  • Location
  • Building purpose
  • Roof size
  • Slope
  • Expected foot traffic
  • Local climate

Don’t worry if you're unsure which cover is best for your roof. Once you reach out to us, our experts will assess your needs and recommend the ideal option for your property.

We install four types of roof coverings: bitumen felt, liquid membrane, single-ply membranes, and lead. Learn more about the benefits and features of each by visiting their individual pages.

The lifespan of a flat roof depends on the material, quality of installation, and overall maintenance. With proper care, many flat roof covers can last between 10 and 40 years. Factors like weather conditions and exposure to foot traffic can also affect the roof's longevity.

That all depends on the type of roofing material. Some materials, like single-ply membranes, can withstand foot traffic, while others, such as bitumen felt, are more delicate. We can advise on the suitability of your roof for foot traffic and provide recommendations for safe access if needed.

5-Star Service

Expert Installation

Dedicated Support

Competitive Pricing

Get a Quote

Please note, we cannot quote for any green roof projects under 15m2.
Please upload any images or plans you may have for your project (optional). Allowed file types: .jpg .png .pdf
GDPR*
Green roofs offer both commercial and environmental benefits. From sound-proofing, thermal insulation and durability to providing habitats for wildlife.
Get In Touch
Tagus House
9 Ocean Way
Southampton
Hampshire
SO14 3TJ
Copyright © 2025 | Green & Flat Roofing

Get a Free Quote

Please note, we cannot quote for any green roof projects under 15m2.
GDPR*