SIG Design & Technology Limited

Complete roofing from design to supply to installation

SIG Design & Technology is a part of SIG plc a FTSE 250 listed company. We are committed to supporting the construction industry through the provision of exceptional roofing solutions to aid design, performance and aesthetic considerations. SIG plc is the UK’s market leading specialist supplier of construction products, a hugely experienced part of the supply chain.

As an organisation embedded within the roofing construction sector, we offer a complete and impartial design and supply service, built around a selection of waterproofing options that are able to meet the specifier’s definite requirements.

Roofing expertise and knowledge are just part of the service that we provide absolutely free to our clients. Our processes, which follow eight clearly identified steps, help our clients create the #PerfectRoof. Furthermore, our roofing range includes the design and supply of flat roofs, green roofs, and zinc, copper and stainless steel roofing and cladding with the reassurance of advice, appropriate products and solutions, PI Insurance and full system guarantees.

As we provide back to back guarantees that cover both product and workmanship, we work hard to manage the installation process. This is delivered through our accredited contractor scheme (DATAC) where our trained installations contractors are regularly monitored by our team of field technicians. These processes ensure that reliable, experienced roofing contractors install the roof and that they have the specialist technical support on hand when they need it.

Poor roof designs will not only fail to meet the required performance of the roof but will additionally be impossible to install effectively. For this reason we ensure that we are involved in the process of roof design providing J42 design documentation.

As specialists within the whole roofing sector we will help you identify the right solution for your project.

SIG Design Technology have developed two RIBA Core Curriculum approved CPDs

These seminars set out a step by step process to help you establish the most appropriate solution in any particular circumstance. They work through how to establish the client’s brief, how to ensure compliance, and how to make the right cost decisions. In addition they detail what support to expect from suppliers and offer further sources of information.

Subscribe to our Roof Design Technical Blog at receive useful, technical advice and information on designing flat roofs, green roofs, single ply and zinc roofs.

Product Listing

Single ply roofing membrane
The only UK manufactured single ply, Armourplan PVC can achieve A+ BREEAM rating. Armourplanis versatile in either new build refurbishment, quick and simply to install, covers workmanship in the warranty and is competitively priced.  Guaranteed for up to 20 years with BBA life expectancy in excess of 30 years, it offers exceptional mechanical properties, a choice of colours, high UV resistance, secure seam welding and a complete range of ancillaries.

IKO’s Spectraplan TPE high-quality reinforced single ply roof system is BBA approved, offers high resistance to UV ageing, has a service life of 20+ years and is recyclable. It combines the best of polymers PVC and EPDM. Compatible with bitumen and polystyrene (EPS/XPS), TPE is suitable for over-roofing without a separation layer. A high degree of elasticity accommodates building movement and standing water has no detrimental effect.

Eco-friendly Rhepanol PIB single ply comes with a full Life Cycle Assessment. Requiring no hot works, Rhepanol fk is perfect for both new build and refurbishment and can be installed directly over bitumen. Rhepanol fk has a self-sealing edge and installation is as easy as 1-2-3. In white, it maximises energy capture in PV applications. Rhepanol hg is suitable for all types of green roofs, is hot-air-welded and has full FLL certification. SIG D&T also supplies FDT’s Rhenofol PVC membranes which are suitable for a wide range of applications including green roofing.

Liquid Waterproofing
Hydrostop AH-25 is a fast curing, easy to apply liquid waterproofing with superior performance. AH-25 can be applied wet-on-wet and to 0o falls. With no isocyanates and solvents, non-flammable and virtually odourless it’s free from chemical hazards subject to EU CLP regulation.

Vulkem® Quick System is a crack-bridging, UV and wear-resistant walkway waterproofing system. The different components that make up the Vulkem® Quick System cure to form a highly-elastic, foot trafficable waterproofing system.  Aesthetically appealing, it comes in decorative, coloured quartz, uni-colour or coloured flake finishes. Fast curing with a seamless finish, it can be applied at very low temperatures and in wet conditions.

Hot Melt
PermaTEC Hot Melt is a tough, flexible and self-sealing membrane system that is ideal when the deck has no fall. It creates seamless, fully bonded waterproofing for flat, inverted and green roofs and podium decks, etc. PermaTEC Ecowrap is a hot applied membrane installed in two coats to a smooth surface. PermaTEC Anti-Root is specifically designed for green roofing and needs no separate anti-root membrane.

Bitumen Membrane
The SIGnature Torch on System range is an EXT.F.AA fire rated roofing system intended for both new work and overlay refurbishment projects. Offering different warranty packages dependant on the underlay option selected. This will ensure that you can tailor the system to your client’s requirements, and come in on budget. The SIGnature Torch on System range includes; fire rated cap sheets, underlays and vapour control layers, insulation and various approved accessories. Available in 2 colours of mineral finish.

Green Roofing Systems
ABG’s built-up systems replicate the natural growing environment for plants, creating lush, vibrant, bio-diverse environments, for transforming both new and refurbishment projects.
SIG’s modular green roof system allows for the natural sharing of water, nutrients and beneficial organisms across the rooftop. Minimising zoning, it creates a more natural look.

Zinc, Copper and Stainless Steel Roofing & Cladding
SIG Zinc & Copper offer a wide range of metal roofing and cladding options from the high end to cost effective alternatives. Choose from a comprehensive range of durable, high performance finishes from zinc and copper to painted aluminium and stainless steel, with a free design and support service, excellent technical advice, UK fabrication and fully integrated warranties.

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Loughborough LE12 9NH GB
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