Proteus Waterproofing

Knolly’s House, a residential block of flats in London, required refurbishment works to the internal communal walkways and concrete stairwells as the existing waterproofing had reached the end of its serviceable life. The waterproofing needed to be fast cure as the communal balconies were the only access to the flats. Therefore, Proteus Waterproofing specified Pro-BW® Plus system.

The Proteus Waterproofing roof survey carried out found the existing flat roof system to be saturated. The existing roof build-up needed to be stripped back to the roof deck, with the main challenge of the roof refurbishment being the low up-stand heights available to the penthouses.The project required a flat roof system manufacturer involved at the initial roof survey and specification design stage, followed by the manufacturers technical back-up to assist with unforeseen and unexpected situations to ensure a successful installation of the new roof systems.High Performance WaterproofingThe terrace roofs above hated spaces demanded a waterproofing system with BBA certification. The fully bonded and seamless Pro- System® Plus was selected for its high performance and low odour, in conjunction with Proteus Pro-Therm Insulation to improve the roofs thermal performance and reduce the existing condensation risk.The flat roofs that were not above heated spaces required Proteus Pro-System® Plus low odour, seamless waterproofing overlay. Proteus Waterproofing worked closely with the Client and the Proteus Approved Contractor, which also acted as the Main Contractor, to ensure the installation complied with the specification design.Health & SafetySafety on construction sites is always of the utmost importance, as well as keeping disruptions to other trades to a minimum. Proteus Pro-System® Plus was selected for its high performance, low odour, phased cold installation and seamless waterproofing.Long Term Performance​Proteus Pro-System® Plus creates an elastomeric, seamless, cold applied waterproofing membrane. The Proteus Pro-System® Plus system can include warm roof insulation. The membrane does not become brittle with age, is BBA Certified with a durability statement of at least 30 years.

Emma House, Romford, a residential apartment block built in 2007, needed a new waterproof membrane for the entire roof area after the single ply membrane, installed just 10 years earlier, had failed. The specification by our clients asked for a cold applied system to be used during the refurbishment to minimise disruption to residents, while providing a permanent waterproofing solution.The ChallengeCore samples taken of the roof build-up showed there had been extensive water penetration which required urgent remedial action. Impossible to repair, the complete roof system had to be stripped back to the roof deck by Proteus Waterproofing’s approved contractor. The approved contractor installed a new Proteus Pro-System® BUR (built up roof system) incorporating Proteus Pro-Therm insulation, to provide a new seamless roof – an area of some 150 square metres – offering a 20 year guarantee.Why Proteus Pro-System® was specifiedProteus Pro-System® was installed using no heat, providing a seamless waterproofing membrane on completion. Proteus Pro-System® is a high performance, seamless and cold-applied waterproofing membrane for flat and pitched roofs. It cures to provide completely seamless waterproof protection and has excellent thermal and UV stability, making it suitable for use in all climates.Proteus Pro-System® does not brittle, deteriorate or discolour with age. It uses atmospheric moisture to trigger its cure process and unlike conventional polyurethane systems can cure under water, without gassing or foaming. It also becomes resistant to rain damage and may therefore be applied in relatively poor weather, without any subsequent loss of performance or durability – making it ideal for Emma House.About Emma HouseEmma House consists of 14 one-bedroom and 19 two-bedroom apartments just minutes away from the centre of the market town of Romford, which offers shops, services and a wealth of bars and restaurants. When first built in 2010, Emma House offered young professionals an opportunity for affordable housing close to London and has remained at the forefront of the property market in Romford ever since.

For the redevelopment of a former builder’s yard in Greenwich into a new build block of live-work units and residential flats, the developers were looking for a roof system which would offer long term waterproofing integrity, exceptional green credentials and enhanced aesthetics. The proposed green roof system would also reduce water run-off, create a wildlife habitat and help towards securing Code for Sustainable Homes Level 4.

The Blackheath Hospital, a private hospital made up of Victorian houses that from the classical façade of the building required a new waterproofing membrane to the plant room roof, after reports of water ingress to the building below.

Battersea Dogs and Cats Home in London, the best-known animal sanctuary in the world, is currently undergoing the biggest development in its 154-year history – a £5million scheme delivered by main contractor, Sir Robert McAlpine.

Comprising of nine shops and several residential flats, properties 29-47 High Street Polegate required a full roof refurbishment after complaints of water ingress into the residential buildings. Proteus Waterproofing conducted a thorough survey which revealed that the existing roof build up, made up of a timber deck and 2-layer felt, had been previously repaired but was now at the end of its serviceable life.Being a residential building with a combustible deck, protecting individual properties from internal fire spread was a key consideration. Compartment walls were identified allowing Proteus Waterproofing to provide a solution that would meet regulatory guidance relating to the junction of compartment walls and roofs in Approved Document B whilst meeting the needs of the client.Proteus Waterproofing specified their robust reinforced bitumen membrane range of Proteus Pro-Felt®, including a bespoke hybrid insulation approach, where instead of a full replacement consisting of entirely non-combustible insulation, a scheme was designed to meet the requirements above and either side of the compartment walls, offering the client the most cost-effective solution possible that would also mitigate any unnecessary increase of weight loading elsewhere on the roof.High Performance WaterproofingThe waterproofing and existing deck were stripped back and re- decked with 18mm plywood. When removing the existing waterproofing, our approved contractor, carefully recorded the exact location of the party walls as no drawings of the upper story flats were available.Proteus Pro-Felt® SA AVCL was used as a vapour control layer to allow for the application of the hybrid combination of 150mm Proteus Pro-Therm PIR insulation and 150mm Proteus Pro-Therm Mineral Wool insulation. A thermal calculation was undertaken to ensure that the final result met the requirements of Part L of the National Building Regulations. These were both adhered with Proteus Pro-Bond Foaming Adhesive. Proteus Pro-Felt® SA Underlay Plain was laid and finished with Proteus Pro-Felt® Ultima Plus Fireguard Mineral Capsheet, providing the client with a fully waterproofed Part B and Part L compliant roof, guaranteed for 20 years.Proteus Waterproofing worked closely with the Proteus Approved Contractor, to ensure the project was delivered to a high standard.Health & SafetyWhen working on occupied buildings, safety is always of utmost importance, as well as keeping disruptions to a minimum. The Proteus Pro-Felt® range have been tested to the highest European Classification of BROOF(t4), making it the ideal system to use on all buildings, as the risks to residents, property and members of the public are greatly reduced. All Proteus Waterproofing specifications promote fire safe installation methods conforming to the industry lead Safe2Torch guidelines. Proteus also have a range of cold liquid applied membranes which are also BROOF(t4) certified.Long Term PerformanceProteus Pro-Felt® offers high-performance bituminous membrane systems, tested to perform in extreme temperatures and weather conditions, while offering clients a robust and cost-effective waterproofing solution. Proteus Pro-Felt® Ultima Plus range retains its high polymer performance. Its class leading, high quality modified bitumen content allows this flexible membrane to move with the building and ensure long term durability and performance with third party BBA accreditation and guarantees available up to 30 years.

As part of an on-going, planned flat roofs refurbishment, the Hotel flat roofs existing, ageing coverings were found to be in various state of deterioration.

The existing felt waterproofing and timber deck had failed allowing water ingress into the residential building below. Upon further inspection, Proteus established that the existing roof lacked any insulation and therefore did not meet current Building Regulations.

City Tower, a private apartment tower block located in Canary Wharf required a new high performance waterproofing system as the existing single ply roof had been damaged beyond repair due to a fire. To provide a cost effective, long term waterproofing solution, Proteus Waterproofing specified a Hybrid Tapered Insulation Scheme with a Proteus Pro-Felt® finish, meeting the client’s specific requirements.High Performance WaterproofingAs the existing roof was beyond repair, it needed be completely stripped. Pro-Prime® SA and Proteus Pro-Felt® Self Adhesive Underlay were used as a vapor control layer. Proteus Pro-Therm EPS and Proteus Pro-Therm PIR were used for the Hybrid Tapered Insulation Scheme and bonded using Pro-Bond Foaming Adhesive. Proteus Pro-Felt® 3mm Plain Underlay was then fully adhered to the insulation, followed by a final installation of Proteus Pro-Felt® Ultima Plus Fireguard. Proteus Waterproofing worked closely with the Proteus Approved Contractor to ensure the project was delivered to a high standard.Health & SafetyWhen working on residential buildings, safety is always of utmost importance. Proteus Pro-Felt® Ultima Plus Fireguard has the highest European Fire Rating, BROOF(t4), making it the ideal felt to use on residential properties as the risks to operatives, building occupants and members of the public are greatly reduced. All Proteus Waterproofing specifications promote fire safe installation methods conforming to the industry lead Safe2Torch guidelines.Long Term PerformanceProteus Pro-Felt® Ultima Plus Fireguard is a high-performance multi-layer bituminous membrane system, tested to perform in extreme temperatures and weather conditions. It has class leading modified bitumen content which allows the flexible membrane to move with the building and ensure long term durability and performance. It is certified by the BBA to be in excess of 30 years, and had the highest European Fire Rating – BROOF(t4).

The Tottenham Experience is the largest club shop in Europe, and the facility houses both the Tottenham Hotspurs & their NFL Partners a unique shopping experience. The Tottenham Experience houses an entertainment suite on the top floor which replicates the stadium terracing. The complexity of detailing around the balustrading and steps was overcome by using the internal and external Proteus Technical Team.Proteus Hot Melt® and Proteus Pro-Therm XPS Plus offered the perfect solution.High Performance WaterproofingWith the podium deck covering 1500m2, the Proteus Hot Melt® system combined with Proteus Pro Therm Insulation XPS Plus was the optimum waterproofing solution for this project with a cost effective, seamless and fast application.This High performance solution worked exceptionally well for our Proteus Approved Contractor, who was able to install the system without any complications to the highest standard.Quality controlProteus Waterproofing worked in close partnership with both the Architect, Main Contractor and Proteus Approved Contractor, to successfully deliver the project to a very high standard within the required time frame and to the standard required.Long term performanceProteus Hot Melt® is a long lasting robust membrane design to last. The client required both a BBA Certified product that offered a 25 year Guarantee for the waterproofing system on this project.

On the Grand Union Canal in Hemel Hempstead, the Nash Mills Wharf housing development features a range of stylish new build 1-4 bedroom houses and luxury apartments offering high quality waterside living in this Hertfordshire town.With a waterproofing system required to protect the concrete podium above the ground floor car park, a selection of hot and cold applied products were provided by Proteus Waterproofing that met the requirements of the client Linden Homes. The licensed roofing contractor worked with Proteus Waterproofing on a dual system specification which included the fast and economical Proteus Hot-Melt waterproofing system, and for the intricate detailing around upstands and to avoid hot works around the plastic soil and vent pipes, the Cold Melt® waterproofing system was the ideal solution.Fast, hassle-free applicationWith the podium deck covering 3000m2, the Proteus Hot Melt® system was the optimum waterproofing solution for a robust, cost effective, seamless and fast application. This solution worked exceptionally well for the Licensed Contractor and is compatible with the fast applied Cold Melt® solution which was used for high detail items including plastic soil and vent pipes and upstands. There was also the added challenge of wet brickwork and an exacting building program to keep to. To overcome this problem, Proteus isolated the wet substrate with Pro-DPM Primer (Damp Proof Primer) which can be applied to green concrete 3 days old and then followed immediately by the Proteus waterproofing system. This enabled the Cold Melt® to be installed on to the vertical elevations will no loss of time.Quality controlProteus Waterproofing worked in close partnership with its Licensed Contractor to successfully deliver the project to a very high standard within the required timeframe.Long term performanceIncorporating recycled rubber-crumb and other organically grown products, Cold Melt® creates an elastomeric, seamless, cold applied membrane and can outlast the lifetime of the substrate on which it is installed.