multiwall accessories

A complete polycarbonate roof installation relies on more than just the sheets. Accessories such as glazing bars, tapes, fixings, and flashings help ensure sheets are supported, positioned correctly, and finished neatly. Our range of multiwall polycarbonate accessories is designed for use with Corotherm multiwall polycarbonate sheets in common thicknesses.

At polycarbonatex.co.uk, we supply the accessories needed for assembling and installing a multiwall polycarbonate roofing system, with compatible components available in one place.

Why Polycarbonate Accessories Are Important

Multiwall polycarbonate sheets expand and contract with temperature changes, so they require appropriate fixings, bars, and edging components. Using suitable accessories helps ensure:

• Correct sheet placement

• Allowance for thermal movement

• Coverage of open sheet edges

• A neat finished appearance

• Support for drainage and water run-off

Accessories are typically used in combination with glazing bars, tapes, and closures to create a complete system.

Glazing Bars

Glazing bars are used to join multiwall polycarbonate sheets and secure them to a supporting structure.

They are designed to:

• Hold adjacent sheets in place

• Allow for thermal expansion

• Support correct water run-off

• Create a fitted joint between panels

Glazing bars should always be selected to match the thickness of the polycarbonate sheets being installed.

Side Flashings

Side flashings sit along the exposed edges of a roof.

They are used to:

• Cover and protect sheet edges

• Provide a neat side finish

• Direct water away from the structure

Side flashings are commonly used on pergolas, lean-to roofs, canopies, and carports.

End Closures and End Caps

Multiwall sheets have open internal flutes that need to be covered during installation.

End closures:

• Fit along the open ends of the sheet

• Cover breather tape (bottom) or aluminium tape (top)

• Provide a finished edge

• Help limit the entry of debris

They are used at both the top and bottom ends of polycarbonate sheets.

Polycarbonate Tapes

Breather Tape (Bottom Edge)

Breather tape is designed to:

• Allow moisture within the flutes to ventilate

• Help limit the entry of dust or insects

• Support correct installation of multiwall sheets

Solid Aluminium Tape (Top Edge)

Aluminium tape:

• Covers the top ends of the sheet

• Provides a sealed upper edge

Both tapes are typically used together to prepare multiwall sheets before end closures are fitted.

Fixings and Super Fixing Buttons

Fixings designed for polycarbonate sheets help support the panel without restricting thermal movement.

These fixings:

• Secure sheets to timber or metal structures

• Include caps to cover the fixing point

• Are used when sheets are fixed directly through the panel

• Help distribute pressure around the fixing location

Fixings should always be installed in pre-drilled oversize holes to allow for expansion.

Compatible with Corotherm Polycarbonate Sheets

The accessories in this category are suitable for use with Corotherm multiwall sheets in the following common thicknesses:

• 10mm

• 16mm

• 25mm

Selecting components that match the sheet thickness helps ensure compatible fitment across the entire roofing system.

Suitable for a Range of Polycarbonate Roofing Projects

These accessories are commonly used in installations such as:

• Pergolas and patio covers

• Conservatories and garden rooms

• Canopies and lean-to roofs

• Carports

• Walkways and shelters

They are suitable for both DIY and trade customers assembling multiwall polycarbonate roofing systems.

Why Buy Accessories from polycarbonatex.co.uk?

• UK-based retailer

• Accessories compatible with Corotherm multiwall sheets

• Matching components available for full roof assemblies

• Clear product specifications

• Nationwide UK delivery

• Support available for product selection

We offer a range of accessories that work together to support the installation of multiwall polycarbonate sheets.

Complete Your Roofing System

For a consistent installation, choose accessories that match the thickness and type of multiwall polycarbonate sheet being used.