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All Glazing Bars

Glazing bars are an essential part of any glass or polycarbonate roofing system, whether it be on a large conservatory or small pergola. These glazing bars provide you with a clean finish and help... Read More
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best seller Alukap-XR - Aluminium Valley Bar - White

Alukap-XR - Aluminium Valley Bar - White

Delivery: 1-2 Days

Price From: £75.19INC VAT RRP: £94.00 View
best seller Snapa - PVC Drip Trim - White (2100mm)

Snapa - PVC Drip Trim - White (2100mm)

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Price From: £4.32INC VAT RRP: £5.40 View
best seller Alukap-SS - Low Profile Cap - White

Alukap-SS - Low Profile Cap - White

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Price From: £41.40INC VAT RRP: £51.76 View
best seller Alukap-SS - High Span Cap - Brown

Alukap-SS - High Span Cap - Brown

Delivery: 1-2 Days

Price From: £63.42INC VAT RRP: £79.27 View
best seller Alukap-XR - 45mm Aluminium Glazing Bar with End Cap - White

Alukap-XR - 45mm Aluminium Glazing Bar with End Cap - White

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Price From: £45.16INC VAT RRP: £56.45 View
best seller Alukap-SS - Low Profile Gable Bar - White

Alukap-SS - Low Profile Gable Bar - White

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Price From: £151.88INC VAT RRP: £189.85 View
best seller Alukap-XR - 60mm Aluminium Gable Bar with End Cap - Brown

Alukap-XR - 60mm Aluminium Gable Bar with End Cap - Brown

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Price From: £58.88INC VAT RRP: £73.61 View
best seller Alukap-SS - High Span Gable Bar - Brown

Alukap-SS - High Span Gable Bar - Brown

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Price From: £189.30INC VAT RRP: £236.63 View
best seller Alukap-XR - Aluminium Ridge - White

Alukap-XR - Aluminium Ridge - White

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Price From: £81.47INC VAT RRP: £101.83 View
best seller Snapa - Polycarbonate H Section

Snapa - Polycarbonate H Section

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Price From: £13.80INC VAT RRP: £17.26 View
best seller Alukap-SS - Low Profile Bar - White

Alukap-SS - Low Profile Bar - White

Delivery: 1-2 Days

Price From: £90.41INC VAT RRP: £113.02 View
best seller Alukap-SS - High Span Bar - Brown

Alukap-SS - High Span Bar - Brown

Delivery: 1-2 Days

Price From: £112.68INC VAT RRP: £140.86 View
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Common Questions

Buying roofing materials can be daunting, especially when ordering them online. With over 40 years of experience in roofing, however, we get asked a lot of questions about our growing range of polycarbonate glazing bars. Here are some of the most common questions with answers for each!

Which Material is Best – Plastic or Aluminium Glazing Bars? 

Roofing Megastore supplier both plastic and aluminium glazing bars. Whilst both do the same job, they have been designed and manufactured for particular project types. Therefore, when ordering glazing bars you should ensure you choose those that are purposely crafted for your project.

Plastic glazing bars are manufactured from high-quality PVC, which is ideal for multiwall polycarbonate. These glazing bars require a timber frame are only suitable for low-mid span polycarbonate roofing projects. Due to the weight of solid polycarbonate and glass panels, plastic glazing bars should not be used on such projects.

Aluminium glazing bars are ideal for solid polycarbonate and glass panels, but can also be used with multiwall polycarbonate if desired. Due to their aluminium build, they can also be used on high-span roofing projects. Whilst standard aluminium glazing bars require a timber frame, self-supporting glazing bars can withstand the weight of your panels without additional structural support.

Why Do I Need Polycarbonate Glazing Bars?

Glazing bars are an essential part of any conservatory, pergola or greenhouse roof. They ensure your roofing sheets are secured in place and will not be lifted by strong wind. Through the use of rubber gaskets, they are prevent water ingress below your polycarbonate or glass panels. 

Whilst some will fix polycarbonate roofing sheets onto a timber structure without glazing bars, this will likely reduce the lifespan of those sheets. This is as water can enter the sheets more easily and the fixings will struggle to hold your sheets in place.

What is Used to Connect Multiple Sheets?

When connecting multiple polycarbonate or glass panels along the length, you will use a glazing bar. These feature a base plate and top bar, which hold your roofing sheets snuggly in place. If you are connecting sheets along the width, you will use a H section.

Will an End Cap Be Included with Your Glazing Bar?

A single end cap is provided with each glazing bar. This end cap is used on the exposed end to stop water or wind from entering your glazing bar. Should you wish to seal both ends of your glazing bar or intend to cut them on site, you can buy additional end caps too.

Are Polycarbonate Glazing Bars Available in Other Colours?

The majority of our plastic glazing bars are only available in either white or brown. Our aluminium range, however, can be coloured to match that of a provided RAL colour. As an additional cost may apply and the estimated delivery date may vary, we recommend that you contact our team online or by telephone.

Have More Questions? 

If you have more questions about our glazing bars, speak to our team online or by telephone. With over 40 years of experience in roofing, we’ll help answer your questions and will ensure you have everything you’ll need to complete your roofing project.

Glazing Bars
Minimal Price: £2.23
Feefo Reviews Average Customer Rating 4.6
  • Good service

    A positive experience. Delivery did arrive a day early, which to be fair caused a few changes to my schedule but on most occasions this would be a goo

  • Would definately recommend them. Advise from the sales staff got me exactly what I needed. Delivery was excellent & the product is working well. Th

  • Excellent service

    Carl Fisher
  • Great service

    All arrived on time, good product

    Stuart
  • First class

    First class, ordered what I wanted, got want I wanted, perfect

    keith ledger
  • no email for delivery sent !

    No email was sent with details of delivery date but was lucky my partner was in to receive delivery

    Ben Senior
  • Roofing sheet

    Easy ordering and quick delivery

  • Replacement 10 mm patio roof

    Excellent service and products. All the items I needed from one supplier.

  • Great price. Delivered quickly.

    Peter Harrold
  • fast service, good price and site easy to navigate

    Martin Cavanna
  • Brilliant.

    Excellent, good product, good price, speedy delivery.

    Stephen Haywood
  • Delivery was satisfactory, although completion of the order had to be be split into two visits. However, this wasn’t a problem. The drivers were cou

    John Rouse
  • Brown Corregated Panels excellent quick service and delivery. we have added them to our pergola to make it more usable. shame only brown on top side h

  • Quality of items was better than anticipated!

    Thanks for the prompt delivery and excellent wrapping, although the sheets had been dragged with one corner showing signs of damage, luckily I was abl

    Danny Kaye
  • would highly recommend

    So impressed , fantastic customer service and possible one of the very few companies that know the "Scottish highlands" is part of mainland U.K. .surp

    Michelle Shepherd
  • Quick & Quality

    Easy to order, quickly delivered & excellent quality.

    Karon Smith
  • Good

  • Brilliant

    Maureen Foreman
  • Quick delivery great prices - First class service

    Quick delivery great prices - First class service

  • Very good service.Having never purchased these items before,great help from Sales staff on line etc.Placed order via phone was great.May be ordering a

    Ron Mumford

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