- BuildingDesign Construction Portal
  • Request Product Information

SIG Design & Technology - Flat Roofing

Hydrostop - Liquid Waterproofing - Flat Roofing - Permaphalt - Mastic Asphalt

8 Steps to the #PerfectRoof

SIG Design & Technology is part of SIG Roofing, a leading division of SIG plc, a FTSE 250 listed company and the UK’s market leading specialist supplier to professionals in the building and construction industry. We design and supply flat roofing solutions including green roofing, zinc, copper and stainless steel roofing and cladding and pitched roof coverings including natural slate and clay tiles.

We have put together an 8-step guide to identify the challenges and ensure that a roof’s design meets a building’s requirements.

Called #PerfectRoof, the eight steps follow the process from product selection and design expertise through to full guarantees and planned maintenance.

Our know-how is just part of the service that is provided absolutely free to customers.

IKO Armourplan PVC is a polyester-reinforced PVC membrane which is suitable for use on a wide range of roofing applications including specialist installations such as simulated metal roofs. The only UK manufactured single ply, Armourplan PVC can achieve an A+ BREEAM rating. Guaranteed for up to 20 years with BBA life expectancy of more than 30 years, it offers exceptional mechanical properties, a choice of colours, high UV resistance, secure seam welding and a complete range of ancillaries. SIG Design & Technology works in partnership with IKO and has exclusive UK distribution of its single ply membrane.

FDT Rhepanol PIB is an eco-friendly single ply that is certified with the Environmental Product Declaration according to ISO 14025 and EN 15804 showing that it makes a valuable contribution to sustainability. Rhepanol hfk is perfect for both new build and refurbishment projects and can be installed directly over bitumen. The membrane has a self-sealing edge, can be mechanically fixed, bonded or ballasted and requires no hot works. Rhepanol hg is designed to be hot-air welded to provide the strongest possible seam and is an ideal choice for green roofs. It holds full FLL certification.

FDT Rhenofol PVC has been proven for over 40 years and is available in three types. Rhenofol CV is reinforced with a polyester grid for mechanical fixing. Rhenofol CG is reinforced with a glass fibre matt, is loose laid and ballasted and is suitable for green roofing. It has full FLL certification as a root and rhizome barrier. Rhenofol CGv has a polyester fleece backing for adhesive bonding. Suitable for green roofing projects it holds full FLL certification.

Sure-Seal EPDM is a fully adhered single ply membrane with more than 50 years of proven performance. The single ply system is a simple, clean, fast to install and does not become brittle or degrade with age. Environmentally friendly it requires no heat or welding during installation and can be easily seamed to other materials and roofing systems. The ideal solution for commercial flat roof installations it features superior resistance to UV and weathering damage.

Hydrostop AH+ Liquid Waterproofing is a wet-on-wet, cold applied system available in two versions. AH25+ and AH15+ use different weight reinforcement fleece and coverage rates and are available with 25 and 15-year warranties respectively. A one-component liquid system it offers many benefits including ease of application, fast curing times and with low VOC content it is fume free and virtually odourless. It can also be applied in practically any conditions and at low temperatures. The systems are BBA certified, certified to EN13948: 2007 for Green Roofs and fire tested to meet BS476-3 2004.

SIGnature PU Liquid Waterproofing is a revolutionary, cold applied, fast-curing liquid membrane. Available in two versions, SIGnature PU 10 and PU 20 liquid coatings offer excellent elasticity and tensile strength and are available with 10 and 25-year warranties respectively. Both SIGnature PU Liquid Coatings can be applied as a single coat with only localised reinforcing as required, creating a bubble-free and durable liquid applied roofing system.

SIGnature Edge Coating System has been developed to protect the cut edges of Plastisol or PVC-coated metal sheeting used in roofing and cladding applications. When installed by a DATAC accredited contractor the products are guaranteed for 10 years, effectively lengthening the lifespan of metal sheeting. SIGnature Edge Coating System is also suitable for the repair of penetrations and guttering.

Vulkem Quick Systems for Walkways & Terraces is a crack-bridging, UV and wear-resistant waterproofing system with aesthetic appeal. The different components that make up the Vulkem® Quick System cure to form a highly-elastic, foot trafficable waterproofing system which is suitable for installation on old or new concrete, tiles, metal, wood, epoxy and other types of existing deck coatings.

SIGnature Torch-On System is a torch-applied built up bituminous roofing system. Each membrane option comes with an EXT.F.AA fire rated cap sheet as standard, a choice of different underlays determines the warranty period.

IKO 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.

IKO Permaphalt Mastic Asphalt is a specially formulated mastic asphalt roofing, using advanced polymer technology to give the ideal combination of long-term durability, increased fatigue resistance, improved temperature stability and ease of installation.


Flat Roofing

Request SIG Design & Technology Info

Permaphalt Mastic Asphalt SIG Design &  Technology Hydrostop Liquid Waterproofing Liquid Waterproofing

Visit SIG D&T Website

SIG Design & Technology Ltd
Mannheim House
Gelders Hall Road
LE12 9NH

Email SIG Design & Technology

Tel: 01509 505714

Request Information From SIG Design & Technology - for UK and Europe only

  • *Full Name
  • *Company Name
  • *Telephone
  • *Email
  • *Enter Short Description of Your Requirements
Please tick below to indicate how SIG Design & Technology may contact you. You may leave any box blank.
  • By Email
  • By Post
  • By Phone
  • By SMS

To Subscribe to our twice-weekly BuildingDesign e-Newsletter tick here:

  • * Please enter numbers shown for validation purposes
We will not share any of your details with any third parties or subsidiaries. You have the right to withdraw or change your consent at any time by contacting SIG Design & Technology. Company details can be found here »

Click here to read our Privacy Notice »