Working in Partnership with
Prokol Polymers Seamless Warm Hydrophobic Waterproof Roof Overlay System - CE Certified 350% Elongation for Thermal Movement Thermal Shock 8 Second Cure, Anti Slip to BS Standard
Intitial Inspection & Survey by Prokol Polymers UK Technical Consultants
Following our request to survey to the ten storey tower block in Bromley Kent for Affinity Sutton Group the information given to Prokol Polymers initially was its current attempt at a new warm roof application had been abandoned half way through the project by the roofing contractor following various roof plant obstruction & protrusion issues where waterproof liabilities could not competently be overcome.
There were a few items in the specification from Prokol Polymers UK that need further attention on inspection such as concrete plinth areas that had not been insulated that required thermal upgrade in line with the rest of the roof, a lift room access door threshold that did not have a sufficient up stand detail to create a full tanking finis, driving rain would have ingressed heavily into this room that was considerably lower than the main roof levels.
Prokol Polymers UK Technical Consultants formulated a new specification focusing on areas of vulnerability, one key factors being the rigidity of the existing roof system under foot traffic were service operatives and there tools could cause unsuspected damage. Prokol Polymers have been called into existing failed projects over the years where conventional roof applications suffered water ingress which had occurred from screws and other fixing medium that had penetrated the membrane causing a breach in the system. It was paramount for Prokol that this was addressed and rigidity in the system was specified immediately.
Existing Roof Now Encapsulated with New 18 mm OSB Moisture Tolerant Smart ply
Prokol Polymers UK & Netherlands Technical Inspectors attend the application constantly to manage the specification along with the approved installers.
Prokol Polymers UK specification insisted on the application of new 18 mm interlocking moisture tolerant OSB smart ply system fitted to joinery standard, the smart ply system has integral fixing joints that allow for full thermal expansion and contraction in line with the Prokol Polymers warm roof application. This would protect the roof insulation and add to the thermal efficiency also, and give a solid platform for foot traffic.
The plant lift room door threshold that needed further tanking provisions had a curbed detail step built that was integrated into the rest of the roof timberwork; this allowed the approved applicators to create a fully watertight tanking detail. Drainage outlets were also addressed to be more efficient.
Prokol Polymers Quality Inspection - An interim quality check by a Prokol QA/QC inspector is carried out prior to the final spray applied CE Certified Seamless Pure Polyurea membrane. Once this phase of the application is signed off as acceptable by the technical inspector the final waterproof membrane application can commence.
The Spray Application Equipment Is Neatly Self Contained & Stored In Approved Applicators Vehicle and Just a 3 inch 400ft Flexible Hose to The Spray Gun Is Required In The Coating Area.
The Final CE Certified Hydrophobic Pure Polyurea Seamless Waterproof Application is Complete & Ready for Heavy Traffic