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HD Sharman Ltd.
High Peak Works,
High Peak,
Derbyshire SK23 0HW

The Plygene® Gutterline System

Engineered to Guarantee Leak Prevention

Unlike competitors’ general roofing products, Plygene Gutterline is a gutter lining system specifically engineered to restore and preserve gutter performance. Providing a 25 year guaranteed, seamless “gutter within a gutter” system, Plygene Gutterline offers a bespoke solution with minimal building disruption and is an effective alternative to full gutter replacement. It is the only BBA certified gutter lining system approved for the harsh rigours of the gutter environment. Through ongoing product development, the system components are designed to meet the challenges of all gutter configurations whatever their complexity. It is the leading system of choice providing complete peace of mind for contractors and their end clients.

Click here for the system specification

Click here for the system guarantee

Why choose Plygene® Gutterline?

Totally unique

Our market leading Plygene gutter lining system is made from an incredibly strong thermoplastic blend engineered specifically for the gutter environment: resistant to mechanical damage, highly durable and weathertight, it withstands foot traffic and is UV resistant maintaining its performance integrity for the full lifecycle of the building. Plygene contracts and expands to suit all environmental conditions without impacting the gutter’s performance or structural integrity.

Non-bonded for expansion and movement

The seamless gutter lining system is non-bonded in design and thermally expands and contracts independently from the the gutter substrate material. This means that as the gutter itself thermally moves, the integrity of the gutter lining is not compromised and will not craze and crack like liquid coatings, or open at the joints like other bonded systems. Hence performance integrity is fully designed into the full product lifecycle.

Maintaining or improving rainwater performance

With its unique design configuration that eliminates the need for any sole board or system build up, Plygene Gutterline ensures that the original rainwater flow rate for the building is maintained and in some instances is improved.

Not weather dependent

Installation of the Plygene Gutterline system is not subject to the vagaries of the weather and can be installed in damp or light rain conditions and doesn’t need an ambient temperature of 5 degrees and rising. It therefore provides contractors with all year around availability to refurbish leaking gutters.

Seamless and continuous

The system is seamless in design to eliminate the need for problematic joints that corrode and fail primarily as a result of thermal movement across seasonal cycles over a number of years. Designing out these points of failure extends the performance integrity of the Plygene Gutterline system providing a permanent and guaranteed solution to stop gutters leaking for good.

Engineered to deliver improved installation

Plygene Gutterline is designed to reduce site complexity and is quicker to install compared to the likes of liquids and traditional bonded membranes. It is non–bonded in design eliminating the need for extensive remedial cleaning prior to fitting and the system’s bespoke moulded components reduce labour complexity during installation. The net result is faster installation and less building disruption.

Totally versatile and flexible

There is nothing else like it or comparable on the market; it is a totally flexible gutter lining system which can be configured to meet the demands of gutter profiles irrespective of their substrate material construction.

Bespoke moulded drainage outlets and network components ensure that the system provides full design flexibility to meet the challenges of all gutter configurations.

Get your Plygene Quote now using our online calculator

High-performance self-adhesive tape for temporary waterproofing and short term repairs to roofs, gutters, flashings and more.

Rooflock Tape is an extremely high-performance and all-purpose waterproofing tape which creates a strong, durable bond to almost any surface and seals in seconds. Featuring Microsealant® pressure-sensitive adhesive technology, Rooflock Tape is completely bitumen free and creates a waterproof seal in only a few minutes. It is widely used in the roofing and maintenance industries as a repair product, gutter sealant, or even general repair tape.

Rooflock features a unique and innovative adhesive to create a successful bond to almost every construction material. 

Works on

✓ Aluminium 

✓ Concrete* 

✓ Epdm 

✓ Fibre cement/ asbestos* 

✓ Asphalt 

✓ Glass 

✓ Clay tiles/slate* 

✓ Fibreglass 

✓ Lead 

✓ Masonry* 

✓ Copper 

✓ Bitumen (Primer required)

Seamless and non-bonded

There are no gutter joints that will fail and the membrane liner will not
stress and fracture.

Designed to meet the many challenges of the commercial gutter environment

Plygene Gutterline’s bespoke design allows it to be installed in any commercial gutter network whatever the width, length or complexity. Installed by Sharman’s network of registered Approved Contractors, all project works are inspected and certified to exacting quality standards. The system design is made up from four key elements which are:

  • The thermoplastic liner
  • The specified fixings (fasteners, flashings and stop ends)
  • Drainage components (standard outlets, bespoke moulded outlets, syphonic kits, leaf guards, etc.)
  • Network components (bespoke moulded T-junctions, corners, weirs, etc.)

Each of these elements forms an integral part of the design and system guarantee.

The System

Installed by Sharman’s qualified Approved Contractor Network, the bespoke system is purpose designed to provide a seamless, non-bonded “gutter within a gutter” that provides a full 25 year system guarantee when fixed in accordance with the Installation Training Programme.


A thermoplastic, durable, hard-wearing and flexible liner that is bespoke creased to the profile of the existing gutter.


Fixing specifications for mechanically trapping and pinning the liner and all of the system components. These include gutter stop ends, flashings, galvanised angles and a specific range of fixings for each different type of gutter substrate.


There are many types, shapes and sizes of outlets for rainwater drainage. Sharman’s system supports them all, including gravity systems, syphonic, vortex, weir and emergency overflow to name just a few, along with other drainage components such as leaf guards.  

Network components

A roof’s gutter network will include transition components to link sections of gutter system, including T-junctions, corners and other bespoke elements. Over 25 years we have seen them all and we have developed our manufacturing capability to produce bespoke moulded network components to any size or shape to match the existing building.  

Sharmans roof and gutter coating systems are guaranteed to extend building lifecycles.

Our market leading systems have stood the test of time, providing complete peace of mind to both specifiers and contractors since their market launch into the industrial/commercial roofing sector in 1985.

Plygene Gutterline Fire Testing

Plygene Gutterline has obtained Euro-Classification 'E' to the harmonised European standard EN 13501-1

Our Other Systems

Request a Sample

We have both material and full system samples available, click here to request your sample.

Book a Training Course

We run regular training courses at our purpose built training centres in Derbyshire and Wiltshire.

Certification & Guarantees

The only BBA certified gutter lining system, guaranteed for 25 years. There is nothing else comparable.

Our Experience

See all case studies

Barnsley Football Club

Barnsley Football Club had been experiencing leaks over seats in the main stand to the dismay of football fans for over 5 years.


Factory engineered to meet this complex site challenge. When Midlands-based facilities management and construction specialists Oakley Industrial Services were asked to provide a fully extended lifecycle solution to 1,400 linear…

A system trusted by specifiers and contractors - Manufactured and installed in the UK...

3.0 million

Metres of system installed


UK commercial properties


Approved Contractors


Market growth