Res-Tec Flexitec 2020 Roofing System

In this article, we will delve into our Flexitec 2020 roofing system to give you an understanding of how our products excel in the flat roofing industry. JJ Roofing Supplies recognises the quality of Flexitec 2020 and the full product range is available both online and throughout our branches.

Introduction to Res-Tec

Established in 2013 as a subsidiary of the Roberts Manufacturing GroupRes-Tec provides a range of services and products for the GRP, composites and roofing industries. Res-Tec Roofing Systems is a branch of Res-Tec that supplies roofing products to the distributor and merchant markets.

The team behind Res-Tec Roofing Systems includes some of the most experienced and respected individuals from a broad range of sectors including polyester resin development and manufacture, composites, polyurethanes and liquid roofing systems. This unique blend of expertise allows Res-Tec to offer a versatile set of services and products tailored to their clients’ requirements.

Flexitec 2020 The Next Generation of GRP Roofing

Flexitec 2020 roofing system is a single resin flexible polyester-based liquid waterproofing GRP reinforced with 225g chop strand matting whilst being flexible & durable to accommodate potential movement of roofs and again provides unrivalled performance at exceptional value. We believe that Flexitec 2020 truly is “The future of GRP" as Flexitec is able to coat all common roof surfaces such as felt, concrete, asphalt, GRP and timber, we are proud to have manufactured the first flexible GRP available to the merchant market.

Surface Options

Flexitec 2020 Application Video – Felt Overlay

One Resin Countless Possibilities

Flexitec 2020 Applications


We always suggest thoroughly assessing the condition of a roof prior to considering it for overlay with Flexitec 2020. Bear in mind, a “sick roof" will always remain a sick roof and we strongly advise against overlaying a roof that is defective, decayed or has signs of trapped moisture.  These roofs should always be stripped and re-decked as required. To be sure the roof is suitable for an overlay, carry out core tests so you can confirm the existing build-up is sound.

Flexitec 2020 can coat almost any common roof surface. However, if you’re unsure what’s on the roof we always advise adhesion tests to confirm compatibility.

You can read more about this on our manual which you can access online at

New Builds

Flexitec 2020 is similarly versatile when it comes to new build – it can coat approved insulation boards directly as well as OSB3, concrete or felt carrier layers. Always make sure the new roof build-up complies with BS 5250 guidelines “Control of Condensation in Buildings" and Part L regulations before you start.

Balconies and Walkways

Flexitec2020 is available with tough impact resistant finishes suitable for all balcony flooring and walkway applications. They can be used for new build or refurbishment projects and are easily cleaned and maintenance-free. Anti-slip grits can be incorporated within the systems to provide slip resistance and surface wear protection and alternatively the membranes are also fully compatible with timber decking, paving slabs or podium finishes.

Green Roofs

With their many environmental and practical benefits and their ability to increase the likelihood of a successful planning application, green roof systems are becoming more and more popular. Flexitec 2020 is seamless, maintenance-free, lightweight and exceptionally long-lasting, making it the ideal green roof base.

In situIn situ 2

Benefits of Flexitec 2020

  • Similar to GRP fibreglass, Flexitec 2020 is genuinely rapid-curing (30 – 60mins walk-over time) with an extra-tough finish. Similar to liquid overlay systems it’s flexible and can coat a range of roof surfaces.
  • Highly flexible and suitable for any size or shape roof without the need for expansion joints
  • Totally seamless membrane – no joints, no welds, no weak points
  • Applied as a one-coat or two-coat system
  • Single resin system that can be repaired/overcoated without grinding down
  • Can be applied to almost any roof surfaces including felt, asphalt, concrete, GRP, PVC single-ply and metal details.

Icons 1Icons 2

Benefits for Contractors

  • Time Saved
  • Reduced labour costs
  • Ease of use and detailing work speed
  • Cure speed
  • One resin,  3 coats system for 20-year guarantee making remedial work is a breeze
  • Cold applied meaning lower insurance premiums
  • 20-year materials guarantee

Whilst this product needs to be applied on a dry surface, it is immediately rain resistant upon application.

Benefits to End User

  • No disruption to existing roof when overlaying
  • Roof can remain waterproof during works by avoiding the need to strip
  • Extremely cost effective
  • No landfill waste

For more information please visit Res-Tec Roofing System’s website at where you will find everything you need to assist you with the installation.

Leave a Reply

Sorry, you must be logged in to post a comment.