Famous Hospital’s Potable Water Reservoir Repaired

PROJECT
Potable Water Reservoir Waterproofing

LOCATION
Cape Town, South Africa

SYSTEM
1.5 mm (60 mil) TRITOflex membrane

PROJECT SIZE
7,850 sq. ft. (730 m2)

 

The Western Cape Department of Health contacted Flex-O-Tek Western Cape (Pty) Ltd to solve their problem of a leaking main water reservoir at the historic Groote Schuur Hospital.

The hospital was founded in 1938 and is famous for being the location where the first heart transplant was performed by Prof. Christiaan Barnard in 1967.  The reservoir supplies water to the entire hospital via further holding tanks located in various sections of the hospital.  It holds approximately 8,000 kilo-liters of water.

Limited Options

Various alternative options were considered.  First, they could rebuild a brand new main reservoir, which was not an option because of time and cost restrictions.  Structurally the reservoir was still in very good condition.  Certain leaks had been detected over the years, which were patched only to re-occur at a later stage.  Besides the leaks, the water in the reservoir was also being contaminated by pine needles from nearby pine trees.  Although not a serious health hazard, the pine needles were finding their way to the renal unit in the hospital and clogging its water purification filters.  It seemed that the pine needles were finding their way into the reservoir via a slight gap between the concrete lid of the reservoir and the wall structure.  Over the years the copings had become loose and some had fallen off, creating small gaps where the pine needles worked their way in.

The Engineers at the Department of Health chose the TRITOflex liquid rubber solution to solve their problems, due to its following characteristics:

  • Ability to withstand water indefinitely
  • That it contains no VOC’s and or any other harmful chemicals
  • The rate at which it can be applied, therefore causing less disruption to the hospital’s water supply
  • A 15-year guarantee
  • Its high elongation characteristics
  • SABS/SANS potable water approval

Quality Installation

The whole inside of reservoir, minus the ceiling, was sprayed with the TRITOflex monolithic rubber membrane at 1.5mm (60 mils) dry. The joint where the walls meet the roof was also sprayed, therefore preventing pine needle contamination. On the outside, TRITOtrowel flashing compound was also used as the primary barrier to pine needle contamination before the copings were reattached.

The Western Cape Department of Health has now specified the Triton line of products as a solution to all matters pertaining to water storage and various roofing issues. A smaller project at Riversdale Hospital was completed with further projects at larger hospitals such as Tygerberg being planned.

School Zinc Roof Restored

PROJECT
Primary School

LOCATION
Neeroeteren, Belgium

SYSTEM
TRITOflex Liquid Rubber System

PROJECT SIZE
22,000 square feet

 

The flat zinc metal roof connecting two sides of this Primary School in Belgium had been leaking and multiple attempts at repairing it had been made.

The zinc metal roof connecting two buildings of a Primary School in Neeroeteren had become a problem with extensive leaks into the room below. The sloped zinc roofs on the buildings on either side drained right onto this flat roof section where it would leak in along the base flashings. Multiple repair attempts had been made with mastic and other metal roof repair products.

Limited Options

The school was tired of the constant maintenance of repairing this roof and went looking for options for a long-term solution. The first option was to tear-off the roof and replace it with a brand new system. This would be costly, disruptive, and could lead to continued leak issues at the areas where the roof connects to the neighboring buildings. Most liquid systems cannot withstand the movements of a zinc roof panels. TM Technics recommended the entire zinc roof be retrofitted and restored with the seamless TRITOflex liquid rubber system which is spray applied to any thickness in one coat. With 1900% elongation, TRITOflex is able to withstand the underlying movements and changes of the zinc roof and also provide extreme flexible water resistance along the base flashings. In addition to that, TRITOflex’s impermeability will prevent future rust and corrosion of the zinc roof panels as a true vapor and air barrier. With FM-approved UV stability and resistance, the school would be able to rest assured the TRITOflex seamless protection will keep their building leak-free.

Quality Installation

TRITOflex was spray-applied to a 1.5 mm (60 mils) dry membrane thickness in one coat by CDR Solutions, a Certified Triton Applicator in Belgium, after the surfaced was primed and prepared with TRITOprime and TRITOtrowel liquid rubber. The school received a fully warrantied roof system that will provide extreme protection from all of the elements and they were able to avoid tearing off and replacing the existing zinc roof.

Split Slab Waterproofing

PROJECT
Split-Slab Waterproofing – Computer Network Bunker

LOCATION
Cedar Rapids, IA

SYSTEM
80 mil TRITOflex Membrane

PROJECT SIZE
2,400 sq. ft.

 

 

The critical computer networks of an area ambulance center required a premium waterproofing system to protect against the worst storms possible.

The computer systems of a newly constructed area ambulance needed to be protected against water damage in the event the main roof were to blow off during a tornado event that could occur in this area of the country. The client needed to have superior waterproofing protection over the interior concrete bunker that was being built to protect the critical network systems.

Flexible Concrete Protection

The Architect recommended a TRITOflex liquid rubber waterproofing system to be installed over the concrete bunker and then another layer of concrete installed over it for ultimate tornado protection. TRITOflex is an extremely durable quick setting, water-based, liquid rubber system with no VOC’s. The superior adhesion, puncture resistance, and wind up-lift rating of the TRITOflex system assured stability of the waterproofing system over the concrete structure in the event of the worst storms possible.

Quick, Green Installation

The new between slab waterproofing protection was completed within 2 days. The client achieved a warrantied waterproofing system for 25 years and can rest assured during even the worst storm events.

Vegetative Food Roof Milwaukee

PROJECT
Church’s Food Roof for the Homeless Community

LOCATION
Milwaukee, Wisconsin

SYSTEM
80 Mil TRITOflex

PROJECT SIZE
3,500 square feet

 

The existing roof on this Church in Milwaukee had been leaking for years. Solving leaks was the first step. Installing a vegetative food roof on top to help feed the hungry was the important second.

This section of the Tippecanoe Presbyterian Church’s building in Milwaukee had an old EPDM single-ply glued down over insulation mechanically attached into a concrete deck. For Years, the maintenance staff battled leaks along the scuppers into the room below which was used to reach the homeless. Now, the churuch was preparing to have only the second food roof in all of Milwaukee installed on their building. Before installing all of this, the roof needed to be restored with a new watertight and durable membrane which is compatible with a vegetative system on top.

Limited Options

Installing Vegetative Roof Components

Hanging Gardens is a Milwaukee-based company which designs green roof system and distributes the necessary green roof components for these solutions. They stepped in to help the church realize their dream of having a vegetative roof to grow fruits and vegetables with the purpose of teaching job skills to the homeless community and providing produce for area soup kitchens. When Hanging Gardens analyzed the existing roof condition before designing the green roof, they saw the existing roof needed to be addressed first. With a limited budget, a tear-off with all new insulation and membrane would be too costly. They immediately contacted Triton, knowing the TRITOflex liquid rubber membrane could be installed over the existing EPDM and would provide a premium level seamless membrane underneath of their new rooftop garden. Triton surveyed the existing roof system and found some areas of damp insulation where leaks had occurred. They recommended these areas be replaced before installed the new liquid membrane.

Quality Installation

After pressure washing the existing EPDM, replacing areas of damp polyiso insulation with new insulation, and priming the roof, TRITOflex was installed in one coat to an 80 mil (2mm) dry thickness. The membrane was spray applied monolithically to all parapet walls, flashing, and transitions. With TRITOflex having extreme impact and puncture resistance on its own, the church utilized the existing EPDM rubber to its advantage rather than wasting it. With nearly 140 mils of rubber membrane on that roof, now sealed up with the seamless TRITOflex system, the church can be confident in a watertight, maintenance-free roof for years to come.

After installation of the TRITOflex membrane, an installation crew installed the components of the food roof on top. This included, in order, a HDPE root barrier, protection fleece, drainage mat, filter fleece, pavers and pedestals to create a courtyard, and a proprietary blend of growth media for the plantings. Within the first month, the church harvested over 90 lbs. of produce from their rooftop garden!

The church is excited for their new, fruitful rooftop garden to provide food for the hungry and skills to the homeless. All kept watertight underneath with the seamless TRITOflex system!

Healthcare Facility Saves 40% with PVC Retrofit

PROJECT
Medical & Healthcare Facility

LOCATION
LaGrange, Georgia

SYSTEM
60 mil TRITOflex with 20 mil TRITOtherm ceramic coating

PROJECT SIZE
35,000 sq. ft.

 

This 10-year old PVC white single-ply roof system had been severly damaged by hail, resulting in numerous membrane fractures and leak points.

A PVC single-ply membrane had been installed over an existing built-up roof on this healthcare facility in Georgia. After only 10 years, hail had fractured the membrane in numerous spots, requiring extensive repairs to prevent leaking. The PVC continued to become brittle and weak. In addition to that, the walk pads welded on top of the membrane had been fractured by hail and turned into water beds. The client sought the contractor for a long-term, sustainable solution for their roof.

Recover or Tear-Off?

The roofing contractor laid out the only two options for this particular project. First, the entire roof could be ripped off all the way down to the deck. This would result in massive waste, disruption, and a very high price tag. The other option was to install a liquid-applied membrane directly on top of the existing PVC. Because there were two existing roof systems, another single-ply membrane cannot be installed on top. By choosing a liquid-applied membrane with high durability, strength, and hail resistance, the client could avoid extensive damage and preserve the existing membrane and insulation without tearing it all off and starting with new. The roofing contractor recommended the TRITOflex instant-set rubber membrane due to its 1,900% elongation and FM-approved severe hail resistance and extreme wind uplift ratings. Also, TRITOflex adheres extremely well to existing PVC single-plys even without a primer. With no odor, the roofing installation could be performed while the healthcare facility was still in operation. In order to avoid the high cost, disruption, and inherent issues with the traditional option, the client chose to save with the premium TRITOflex seamless roof system.

Non-Disruptive Installation

After pressure washing and removing all of the walk pads to ensure no moisture was trapped in the existing system, the TRITOflex two-component rubberized membrane was installed in one coat with a spray application directly over the existing PVC single-ply roof system to achieve a 60 mil/1.5mm seamless membrane. It was then top coated with two coats of TRITOtherm thermal insulating coating at 20 mils/0.5mm to provide superior energy cost savings in the hot summers and protect the membrane as a sacrificial layer for decades. With an industry-leading FM-approved hail resistance classification and leading puncture resistance properties, the flexible TRITOflex membrane will protect this building from anything the elements or roof-top HVAC workers may bring at it in the future. The TRITOflex recover system being environmentally safe with no VOC’s, and no harmful or disruptive odors, proved to be the most cost-effective and prudent solution for the healthcare facility.

This healthcare facility can rest assured they will have no disruptions to their operations due to a leaking roof and they now have an energy-saving, hail-resistant roof system.

Middle School Saves 40% with Single-Ply Retrofit

PROJECT
LaSalle Catholic Middle School

LOCATION
Cedar Rapids, Iowa

SYSTEM
80 Mil TRITOflex Membrane and 20 Mil TRITOthem Ceramic Coat

PROJECT SIZE
53,000 Square feet

 

This 18-year old Hypalon white single-ply roof system had been causing the middle school water intrusion problems for the last few years as it began to fail due to punctures, brittleness, and many other problems.

The school had reached the original expected lifespan out of this white Hypalon single-ply roof system before it began to leak extensively and require constant maintenance and care. Knowing that it was time to have this middle school building re-roofed before the new school year, the school brought in Triton to analyze their current situation and present the options they could choose from.

Limited Options

There were lots of punctures in the existing membrane due to a variety of causes and the school was constantly having it patched. Algae and fungi had also eaten into the membrane causing pinholes. Some of the fasteners had started to protrude through the membrane due to settled insulation from moisture. Lastly, the membrane was very dirty, which negates its energy savings, and thin due to deterioration over time. Water was actually beginning to wick through the reinforcement scrim of the membrane.

Quality Installation

The TRITOflex two-component rubberized membrane was installed in one coat with a spray application directly over the existing single-ply roof system to achieve a 60 mil/1.5mm seamless membrane. It was then top coated with two coats of TRITOtherm thermal insulating coating at 20 mils/0.5mm total to provide superior energy cost savings in the hot summers and also help prevent heat loss through the roof system while the school is heated during the cold Iowa winters. With an industry-leading FM-approved hail resistance classification and leading puncture resistance properties, the flexible TRITOflex membrane will protect this building from anything the elements, roof-top workers, or children may bring at it in the future. The TRITOflex recover system being environmentally safe with no VOC’s, and no harmful or disruptive odors, proved to be the most cost-effective and prudent solution for the school. They can rest assured they will have no disruptions to their vital classroom environments due to a leaking roof and they now have a roof system that can be sustained for decades to come.

The school can rest assured they will have no disruptions to their vital classroom enviornments due to a leaking roof and they now have a roof system can be sustained for decades to come.