Single-ply membrane roofing
Roofline installs single-ply membrane roofs on commercial buildings across Barnsley in EPDM, TPO and PVC. Fully adhered or mechanically fixed, with warm roof insulation and welded or bonded details, for large flat roofs that need to stay dry for decades.
One layer, done right
Single-ply is the modern standard for large flat roofs: a single flexible sheet, laid over insulation, with the seams welded or bonded to make one continuous waterproof layer. It is light, fast to install, works on complex shapes and around plant, and the good systems carry long manufacturer guarantees when installed by trained contractors.
- EPDM synthetic rubber membranes
- TPO and PVC thermoplastic membranes with hot-air welded seams
- Fully adhered, mechanically fixed and ballasted systems
- Warm roof build-ups with tapered insulation for falls
- Upstands, outlets, rooflight kerbs and plant details
- Overlay of existing sound flat roofs
- Walkways and fall protection on the finished roof
Owners and managers of commercial buildings with flat roofs: retail, offices, schools, leisure, healthcare and industrial extensions.
Choosing a membrane
EPDM
Synthetic rubber, extremely flexible in cold weather, long track record. Seams are bonded rather than welded.
TPO
Thermoplastic, seams hot-air welded into a homogeneous joint, light colours reflect heat. Increasingly the default for new commercial roofs.
PVC
The longest-established thermoplastic. Welded seams, wide range of colours and accessories, well suited to complex detailing.
Overlay or strip
A dry, sound existing roof can often be overlaid with new insulation and membrane. A wet or failed one is stripped first. A core sample tells us which.
Questions we are asked about single-ply membranes
How long does a single-ply roof last?
Manufacturers typically guarantee their membranes for 20 to 25 years when installed by an approved contractor, and well-installed roofs routinely exceed that. The detailing, the drainage and keeping the outlets clear matter more to the actual lifespan than the membrane brand.
Can you overlay my existing flat roof?
If the existing build-up is dry and the deck is sound, yes, and it avoids the cost and disruption of stripping. We take core samples to check for trapped moisture first. Overlaying a wet roof traps the water and fails, so we will not do it.
What is a warm roof and why does it matter?
A warm roof puts the insulation above the deck and under the membrane, so the structure stays at room temperature and there is no condensation inside it. It is how virtually all new commercial flat roofs are built and is usually required by Building Regulations when a roof over a heated space is renewed.
Book a site survey
A survey and written condition report is the starting point for every commercial job. It tells you what you have, what it needs and what it will cost, so you can plan and budget properly.
We plan the work so the premises stay operational: phased areas, sealed off zones, dust and noise controlled, and out-of-hours or weekend working where the site needs it.
Book a site survey
Tell us about the building and we will arrange a survey at a time that suits the site.
