What Is Single Ply Roofing and Where Is It Used?

Single ply roofing has become one of the most popular flat roofing systems used on modern buildings throughout London. Found on everything from commercial properties and apartment blocks to home extensions and new-build developments, single ply roofing offers a lightweight, durable, and highly waterproof solution for flat and low-pitched roofs.

But what exactly is single ply roofing, and where is it most commonly used?

What Is Single Ply Roofing?

Single ply roofing is a roofing membrane made from flexible synthetic materials that is installed in a single layer across a roof surface. Unlike traditional felt systems that require multiple layers, single-ply membranes provide waterproof protection through one durable sheet.

The material is designed to withstand:

• Heavy rainfall
• UV exposure
• Temperature fluctuations
• Wind uplift
• General weathering

Its flexibility and durability make it particularly well-suited to modern roofing projects.

Where Is Single Ply Roofing Used?

Single-ply roofing is often chosen for properties with flat or low-slope roofs. In London, it's commonly found on:

• Commercial buildings
• Office developments
• Apartment blocks
• Schools and public buildings
• Roof terraces
• Modern home extensions
• Loft conversion roofs

Because the system is lightweight, it is particularly useful where structural loading needs to be kept to a minimum.

Why Is Single Ply Roofing So Popular?

One reason single-ply roofing has grown in popularity is its excellent waterproofing performance. The membranes are manufactured to create a continuous barrier against water ingress, making them highly effective in London's wet climate.

Other benefits include:

Durability

Single-ply membranes are designed to last for decades when professionally installed and properly maintained. They resist cracking, splitting, and weather-related deterioration far better than many older roofing materials.

Lightweight Construction

Compared to some traditional flat roofing systems, single-ply roofing places less stress on the building structure. This makes it ideal for extensions and refurbishment projects where weight can be a concern.

Clean Appearance

Many architects favour single ply roofing because of its neat, modern appearance. The membrane creates a smooth finish that works particularly well on contemporary buildings.

Fast Installation

Because the system uses large membrane sheets, installation is often quicker than more traditional flat roofing methods. This can reduce disruption and project timescales.

Is Single Ply Roofing Better Than Felt?

Both systems have their place, but single-ply roofing is generally considered a more modern solution than felt roofing. It offers excellent flexibility, durability, and weather resistance, making it a popular choice for new-build and refurbishment projects alike.

The best option depends on factors such as roof design, budget, and expected lifespan.

Is Single Ply Roofing Right for Your Property?

For many London property owners, single ply roofing provides a reliable, low-maintenance solution for flat roofs. Whether you're planning an extension, replacing an ageing flat roof, or working on a commercial property, it offers an effective way to achieve long-term weather protection.

If you're considering a new flat roofing system, our team can advise whether single ply roofing is the right choice for your property and provide a tailored recommendation based on your roof's requirements.