Best of both worlds with a supplier not frightened to blow hot and cold


Every waterproofing project presents a variety of challenges from eliminating damage to plastic pipes caused by hot works to providing a cost-effective solution for a large flat roof. When choosing the most economical, timesaving and durable waterproofing system, it is often the building that dictates the specification of a hot or cold-applied system. But with ever more complex roofing projects requiring bespoke specifications – there’s a clear industry need for waterproofing suppliers to provide a combination of the two.

 Historically, clients were unable to source both hot and cold-applied materials from a single supplier and this would often lead to potentially costly ‘one-size-fits-all’ specifications.  As waterproofing failure has such significant financial implications, it’s vital to choose a material and product supplier that can offer the best of both worlds.

With an array of hot and cold-applied systems for every project, Proteus Waterproofing’s product range combines excellent compatibility, a seamless finish and outstanding waterproofing integrity. Offering long term performance, product reliability and a simple installation as standard, the company’s combination of hot and cold systems with a single source guarantee delivers peace of mind for contractors, specifiers and clients alike.

The heat is on           

Hot-applied modified bitumen systems, such as Proteus Hot-Melt®, have a successful track record dating back more than 40 years.  Applied as a hot liquid directly to the prepared structural deck, they create a completely seamless, monolithic layer and are suitable for use as the waterproofing layer on most new build flat roofing applications.

As a strong and flexible monolithic system, Proteus Hot-Melt® delivers fast, economical and reliable waterproofing which is particularly suitable for large flat roof decks. The system also has self-healing characteristics so offers ultra-low maintenance, and any damage can be traced and repaired quickly and easily.

Despite the obvious benefits of hot melt systems, there is still a need for an alternative solution – such as where risks have been identified in the roof survey.  With a wide variety of roofing projects carried out on live sites or close to members of the public, a common requirement is to mitigate risk and maintain exemplary health and safety standards, such as at school or hospital refurbishments.  As a result, many building owners and specifiers frequently look towards cold-applied technologies to avoid these risks.

In the construction industry there have been a number of advancements made to address the health and safety concerns over the use of torch-applied roofing products. With particular reference to roof detailing work, these concerns led to the development of new flame-free technologies that would reduce the risk to on-site operatives while maintaining the overall roof system’s performance and aesthetic.

Cold comfort

Cold-applied systems offer many advantages over traditional types of waterproofing. As well as offering a ‘safer’ application, the liquid coating can be used to deliver a seamless finish as it forms a permanently elastic, seamless membrane.  Ideal for the long term waterproofing of complex roof details around pipes, upstands and gutters, the system is a popular specification at contemporary roofing projects where penetrations are becoming ever more prevalent.

“In recent years we have seen more and more projects requiring intricate detailing works around rooftop penetrations,” said Justin Pitman, Director at Proteus Waterproofing. “With every roofing project presenting us with a series of new challenges – it’s certainly not a case of one-size-fits-all when it comes to the waterproofing specification.”

He adds: “We offer a flexible range of complementary products that includes Proteus Hot-Melt® and our high performance Cold-Melt® system. This flexibility enables us to offer a bespoke solution that meets the designer’s and client’s exact requirements for aesthetics, performance and ease of application.”

Two solutions, one provider

It has become increasingly common for roofing designers to look towards cold technologies in high risk and areas of complex detailing. The installation of cold-applied systems, when used alongside hot melt products, can provide a beneficial solution that is both effective and minimises the element of risk associated with torch-on applications.

To ensure roofs perform as intended whilst meeting the building standards of today and the future, a measured and evaluative approach to the selection of products must be taken. By utilising the expertise of the manufacturer and producing highly detailed plans before the project begins, the designer and contractor can ensure the job will be completed right first time, every time.

Whether hot or cold applied, specifiers, contractors and their clients must turn to manufacturers and suppliers they can trust to achieve cost effective, durable and sustainable roofing systems.  For high levels of performance, a fast and clean installation, long term guarantee, industry standards and versatility – choose a single source supplier like Proteus for a complete waterproofing system that always comes out on top.