Standing Seam Metal Roof Systems

Standing Seam Metal Roof Systems

Bradclad launched its first standing seam roof system over 25 years ago.  With our unrivalled knowledge and experience of designing and manufacturing this type of roof system we are uniquely placed to advise clients on the choice of standing seam system which best suits their project.


Proseam is based on the long-established principle of fully supported metal roofing and is suitable for fast-track residential, commercial and modular build projects.


ProZip is a versatile, high performance standing seam metal roofing system, based on the tried and tested principle of zipped joints and is suitable for curved, pitched or virtually flat roofs. It has been installed across the world on some iconic projects including airport terminals and shopping malls.

ProZip Roof Systems

ProZip is an extremely versatile, high performance standing seam roofing system that forms a completely weathertight skin. 

Individual ProZip panels are rollformed from continuous strip coil to any required length and then mechanically seamed together onto secretly fixed clips.  The result is an integral roof covering that has no joints or end laps and makes rainwater penetration virtually impossible.

The finished product is robust, corrosion resistant, totally weather-proof and will provide outstanding performance for the life of the building.  The flexibility of ProZip makes it equally suitable for pitched, curved or virtually flat roof applications.  As a value engineered solution, it is also the perfect choice for both public sector and private developments.

Why Choose ProZip

ProZip roofing is extremely flexible in application.  The rigid profile design gives each panel span capability.  Consequently, continuous support – a feature of more traditional longstrip style roofs – is not required. 

The ProZip system does not rely on mastics or sealants to ensure weather tightness.  However, the closed seam does permit any moisture trapped within the construction to vent through to the outside atmosphere, effectively allowing the system to breathe.  A capillary groove rolled into the lap of the panel prevents moisture being drawn through the seam.  

System Components

The ProZip panel is complemented by a range of special components and accessories.  All components and fasteners are non-ferrous to reduce corrosion risk and increase life expectancy.

For ProZip in aluminium, zinc and stainless steel, standard fixing clips are supplied in aluminium. ProZip in steel or copper is installed with a moulded polyamide clip eliminating the risk of bi-metallic reaction.

Key Features of the System

  • No holes or penetrative fixings
  • Suitable for ultra low pitch roofs – down to 1.5 degrees
  • Individual panels can be site formed to any length
  • Panels can be curved and tapered
  • Choice of materials and finishes
  • System is watertight but not airtight so allows breathability
  • No reliance on mastics or sealants
  • Integrates into a variety of roof systems
  • High fire performance rating
  • Energi-Roof solar integrated option


ProZip roofs can be insulated to satisfy each project requirement.  By working closely with supply partners and specialist consultants, Bradclad have modelled workable solutions for the ProZip roof itself and perimeter details. The typical ProZip roof incorporates mineral wool insulation between a metal lining sheet and the ProZip panel to produce a sandwich construction.

Connection of the outer panel back to structure is via a fixing clip and spacer assembly. Heat loss through the system can be controlled by using thermal breaks to eliminate metal to metal contact within the roof construction.  The level of insulation will determine the overall performance.

ProZip Energi-Roof

Since the launch of ProZip over 20 years ago, the Bradclad Group has always looked to the future, developing new ideas to keep the ProZip product at the forefront of the roofing industry.

Early solar panel systems, based on crystalline glass technology, have been fitted to ProZip panels after the roof system was installed, using a structural framework. This is often costly, slow to install and results in a solar panel system which imposes itself on the building. 

Now, through partnerships with leading international solar cell manufacturers, Bradclad can offer ProZip with an integrated PV thin film solar panel system – ProZip Energi-Roof.

Manufactured using the very latest solar technology, flexible PV films are laminated to the metal roof panel and incorporated into the roof during construction.

Unlike more conventional crystalline solar panels, Energi-Roof requires no framework or bracket system. The solar panels are not fitted to the roof – they are part of the roof. With efficiency levels that match their industry rivals, the thin film option offers the building designer a solar panel system that is sympathetic to his choice of roof.

Connectors (MC4 type) can be hidden, fixed to the underside of the laminate, and remove the need for any visible cables or wires on the finished roof.

ProZip roof with crystalline glass solar panels, North Wales Police HQ.
Thin film solar module with MC4 connector.
Sample of ProZip 400/65 panels with integrated solar modules.
Typical construction detail of ProZip Energi-Roof with insulation