Fibreglass / Flat Roofs

Based in Sheffield, A T Roofing specialises in the delivery and installation of flat roofs to homeowners in South Yorkshire. As a trusted roofing contractor, we use innovative techniques to provide properties with robust, attractive and leak-free coverage. As a family-run company, our team collaborates fully to achieve permanent results with minimal fuss. With meticulous workmanship and polite customer service, A T Roofing has a reputation in the areas of Sheffield and Chesterfield – with continual growth through positive client referrals.

Trusted Roofing Contractor

Working in Roofing Business Since 2003

Known for their low cost and safe installation process, flat roofs are popular on commercial properties and are commonly seen on domestic house extensions.

With A T Roofing, you will receive sound advice and a friendly consultation process. We consider the safety of all concerned and perform diligently to ensure waterproof results. We operate a 24-hour emergency call out service in Sheffield, Chesterfield and the surrounding areas. Please contact us 0114 4372166 for further information.

  • Free estimates from a knowledgeable roofing contractor
  • Fully insured specialists, with references available
  • A transparent process with clear communication
  • Competitive pricing on all new roofs and repairs
  • Flexible workmen for a unique and tailored service
  • Extensive guarantees on GRP fibreglass roofing
  • Solid and professionally installed decking boards
  • In-depth inspections for guaranteed satisfaction

A correctly installed fibreglass roof also known as GRP Roofing, will last for at least 30 years with no measurable deterioration. The roof must be laid onto a dry deck in dry conditions at a temperature not below 5°C. The resins and topcoats should be suitable for use in GRP Roofing. This guide relates only to the application of the GRP laminate and topcoat. Typically, two men can strip, re-deck, laminate and topcoat a roof of about 20 square metres in one day. We will work with you to advise on the correct time to  start the roof when a settled period of weather is forecast.

The decking boards should be Sterling OSB3 tongue & groove. They should be fixed to the roof structure using ring shank nails or screws with a minimum penetration of 25mm, which should be used at 300mm centres down the length of each joist covered by the boards. When laying tongue and groove boards, ensure the gap between the boards is face up so it can be reinforced by the resin that runs into it when the laminate is laid. All the boards must have their joints staggered to increase the strength of the roof.

Our Process 

Only Modern Materials and Efficient Techniques

Homeowners in Sheffield, Chesterfield and the surrounding areas trust our specialists to supply secure new roofs that hold firm in all weathers. As a professional roofing contractor, we lend our services to new builds and existing properties across South Yorkshire, supplying durable coverage with a waterproof seal.

1. Free Consultation

Beginning with a free consultation, a member of the team will discuss your requirements and talk you through the options available.


2. Pre-construction Meeting

We will discuss and plan all the details of work to be performed and recommend other services for your home. 

3. Project Installation

We will perform a removal of your old materials, allowing new construction. When work is done, we will make sure that construction site and your home is clean. 

4. Final Inspection

Our project manager will review everything once again and share with you the detailed info about the work performed and give you recomendations. 

Get in Touch

Feel free to send us a message if you have any questions. We’ll send a reply as soon as possible.

Address: A T Roofing
Brooklyn place
S8 9QJ

Opening hours: Mon-Fri 7am-6pm; Sat 8am-5pm