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SURE-WELD® TPO Roofing Membrane

CARLISLE® SURE-WELD® TPO Roofing: The sustainable, high-performance flat roofing system perfect for large projects.

SURE-WELD® TPO is a single-ply, heat-weldable thermoplastic polyolefin (TPO) membrane ideal for large commercial and industrial roofing projects. It is a sustainable choice, made with recycled materials and low VOC emissions.


SURE-WELD® TPO is durable, has already been proven on over 500 million m² buildings worldwide and is now available for architects, specifiers and contractors in the UK.

Specify SURE-WELD® TPO

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SURE-WELD® TPO Membranes

Benefits of TPO Roofing

Our SURE-WELD® TPO Product Portfolio

With our SURE-WELD® TPO membrane products, you are equipped for all the challenges your projects present. Discover your possibilities for sustainable waterproofing with CARLISLE®!

FM Approval Certification for SURE-WELD® TPO

FM Approval is an internationally recognised certification that stands for the highest standards in safety, quality, and performance. Within the construction industry, particularly in roofing and waterproofing systems, this certification is becoming increasingly important.

The SURE-WELD® TPO waterproofing membranes from CARLISLE® are FM Approved – a clear testament to their superior quality, safety, and durability.

Benefits of FM Approval Certification for SURE-WELD®

  • Maximum Reliability & Quality: SURE-WELD® has undergone rigorous testing and meets the highest standards for long-term durability, weather resistance, and mechanical strength.

  • Enhanced Fire Safety: In critical environments such as industrial and public buildings, warehouses, and office complexes, FM Approval ensures that the roofing system meets stringent fire safety regulations.

  • Cost Efficiency Through Insurance Benefits: Since FM Approved systems comply with the requirements of many insurance providers, having an FM Approved roofing system can contribute to lower insurance premiums.

  • Global Acceptance: FM Approval certification means that SURE-WELD® is suitable for international projects – particularly for companies insured by FM Global.

With SURE-WELD® TPO, you not only get a high-performance waterproofing membrane but also the assurance of a globally recognised quality certification.

SURE-WELD® TPO Roofing Accessories

SURE-WELD® TPO is a complete waterproofing system with an extensive range of accessories. Our wide range of system accessories includes everything you need to waterproof corners and edges, roof penetrations or for any specific installation requirements.

All system components are compatible with our membranes and are aesthetically pleasing too.

SURE-WELD® TPO Inside Corner
SURE-WELD® TPO Cleaner
SURE-WELD® TPO Composite Sheet
SURE-WELD® TPO Contact Adhesive
SURE-WELD® TPO Drop Outlet
SURE-WELD® TPO Fastening & Termination Bars
SURE-WELD® TPO Lightening Protection Enclosure
SURE-WELD® TPO Outside Corner
SURE-WELD® TPO Rectangle Parapet Outlet
SURE-WELD® TPO Universal Corner
SURE-WELD® TPO Circular Parapet Outlet
SURE-WELD® TPO Emergency Overflow Round

Technical Data

Material properties Value
Total thickness1.5 mm -5% / +10%
Surface weight2.19 kg/m2 -5% / +10%
Standard delivery length per roll20 m -0/+5%
Width supplied1100 mm / 1520 mm / 1830 mm and 2440 mm (white only) (tolerances according to standard EN 13956)
Storage life10 m -0/+5 %
Stress from external fireB ROOF (t4)*
Fire behaviourClass E
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CARLISLE® Construction Materials Ltd.

Lancaster House, Millenium Business Park
Mansfield, Notts NG19 7DW
T +44 1623 627 285
E info.uk@ccm-europe.com

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Find A Stockist
Spencer theatre based in Ruidoso NM with a TPO Roofing membrane
Octaguard XT weather protection logo
Roofer adding a tpo membrane to a roof
Design photo of the SURE-WELD® TPO roof waterproofing membranes
Spencer theatre based in Ruidoso NM with a TPO Roofing membrane
Octaguard XT weather protection logo
Roofer adding a tpo membrane to a roof
Design photo of the SURE-WELD® TPO roof waterproofing membranes

SURE-WELD® TPO membranes offer superior waterproofing capabilities due to their high-quality, single-layer membranes. These membranes also provide building owners with a selection of colours tailored to their project’s specific needs and aesthetic preferences.

Featuring the innovative OCTAGUARD XT™ weather protection, the SURE-WELD® TPO roofing membrane is the premier waterproofing solution within its product category and is ideal for commercial and industrial roof areas.

Proven worldwide

  • CARLISLE® has over 20 years of experience with SURE-WELD® TPO roofing.

  • More than 500 million m² installed worldwide and waterproofing roofs of factories, warehouses, hospitals, schools, large retail outlets etc.

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Sure-Weld® Materialaufbau

Durable with high strength

  • Unique formulation in CARLISLE® SURE-WELD® TPO: The OCTAGUARD XT™ weather protection is industry-leading and makes the material durable and flexible.

  • The combination of TPO and polyester fabric provides for high breaking and tearing strength and excellent puncture resistance.

  • High hail resistance: Class 4 according to UL 2218.

  • Outstanding chemical resistance against acids, bases and restaurant fumes.

  • Fire protection approvals: Fire class E and BRoof (t4)*.

  • Long service life = long-term investment security.

* As part of a system build-up.

Versatile

  • SURE-WELD® TPO roofing accommodates all lightweight roof substructures making it suitable for new construction and renovation.

  • Bitumen-compatible – direct installation on old roofs made of bitumen/polymer bitumen and numerous plastic variants possible.

  • Root resistant – tested according to DIN EN 13948:2007 (FLL in testing) and therefore also suitable for all types of green roofs.

  • PV-ready – Due to its long service life, SURE-WELD® TPO is very well suited for permanent use under PV or solar installations and other technical structures.

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Sustainable & Recyclable

  • Environmentally friendly and stable formula – No plasticisers, no halogens, no heavy metals.

  • Emission-free welding without smoke or odour.

  • Light grey reflective surface reduces the heating up of buildings and lowers the the energy consumption of air conditioning systems.

  • 100% recyclable.

SURE-WELD® TPO/FPO Abdichtungsbahn
SURE-WELD® TPO waterproofing membrane

Our roofing membrane is durable, flexible, and safe for flat roof installation, boasting outstanding properties:

• Long service life

• Extremely resistant to external influences

• Compatible with bitumen

• Root resistant according to DIN EN 13948:2007 (FLL in testing)

• PV-ready


These are offered in rolls of 20 m in length

• Colours: White and Grey

• Widths: 1.1 m, 1.52 m, 1.83 m or 2.44 m (white only)

• Thicknesses: 1.5 mm, 1.8 mm or 2.0 mm

Order A Sample
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SURE-WELD® TPO connecting membrane

Our connecting membranes are cut to size from the surface membranes, so they also have a highly tear-resistant, internal reinforcement made of polyester fabric. The cut-to-size pieces are used in the execution of connections and terminations as well as cover strips for fastening rails.


Available in rolls of 20 m in length

• Colours: White and Grey

• Widths: 0.25, 0.50 or 0.75 m

• Thicknesses: 1.5, 1.8 or 2.0 mm

Order A Sample
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SURE-WELD® TPO detail sheet

We have developed our detail sheet, especially for the execution of tricky details. The homogeneous TPO membrane without a carrier layer is highly flexible and therefore suitable for sealing penetrations of any kind.


Available in rolls of 15.2 m in length

• Colours: White and Grey

• Width: 0.6 m

• Thickness: 1.5 mm

Order A Sample
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Sure-Weld TPO Inside Corner
Sure-Weld TPO Inside Corner
Sure-Weld TPO Composite Sheet
Sure-Weld TPO Inside Corner
Sure-Weld TPO Inside Corner
Sure-Weld TPO Composite Sheet
Sure-Weld TPO Inside Corner
Sure-Weld TPO Inside Corner
Sure-Weld TPO Rectangle Parapet Outlet
Sure-Weld TPO Universal Corner
Sure-Weld TPO Inside Corner
Sure-Weld TPO Emergency overflow round

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