Generalitat Valenciana, Alcoy: Water tank lining
In 2021, the water tank lining at Generalitat Valenciana, Alcoy was made with Impermax Polyurea H Flex, Impertop Fast 2K.
01 · Project overview
What is this project?
In 2021, the water tank lining at Generalitat Valenciana, Alcoy was made with Impermax Polyurea H Flex, Impertop Fast 2K. The Mediterranean coast here is mild until the summer sun sits on a roof all afternoon.
This one is water tank lining.
Impermax Polyurea H Flex is the spray coat on this roof, so the field and the details are one film.
Krypton Chemical makes the resin. The crew on site applies it. On Generalitat Valenciana, Alcoy the details have to get the same film as the open field, and the cure has to finish before the building goes back to work.
| Project | Generalitat Valenciana, Alcoy: Water tank lining |
|---|---|
| Place | España – Comunidad Valenciana |
| Year | 2021 |
| Line | Waterproofing |
| Products | Impermax Polyurea H Flex, Impertop Fast 2K |
02 · The challenge
What did this structure ask of the system?
A tank holds water against its own wall for years. The leak starts at a pipe, a corner or a cold joint, and it shows up outside long after the tank was closed.
Generalitat Valenciana, Alcoy: Water tank lining has to be one lining, floor and walls together, with the pipe entries in the same film. Filling waits until the cure is finished.
03 · The solution
Which system was trusted here?
The system trusted here is the one named for the job: Impermax Polyurea H Flex, Impertop Fast 2K. It is chosen because it matches the substrate and the exposure, not because every building wants the same can.
On a roof the membrane has to follow outlets and upstands at the same thickness as the field. An exposed aromatic film takes a topcoat if the colour will be seen.
04 · Application
How is the system built?
The products named for Generalitat Valenciana, Alcoy: Water tank lining are applied as one build-up, details before the field. Outlets, edges and changes of plane are closed first, with the same materials as the main area. A system that changes product at the difficult line is a system with a future peel.
The line is Impermax Polyurea H Flex, Impertop Fast 2K. The deck is dry, the temperature is inside the range that product allows, and the next coat follows while the window is open. Leaving a detail for the following week is how these jobs come back.
On Generalitat Valenciana, Alcoy: Water tank lining the roof fails at the edge long before it fails in the field. Parapets, outlets, plant plinths and laps are detailed first, with the same system, at the same thickness. A bay can be perfect and the ceiling still stains if the outlet was a collar of mastic.
The deck moves between the hot afternoon and the night. The membrane has to move with it. A rigid coat maps every crack in the substrate onto the ceiling. Thermal movement is the reason an elastic system is on a roof like this, not a preference for a particular can.
Where the film stays in the sun, colour and waterproofing are two layers. The membrane keeps the water out. An aliphatic coat keeps the appearance. Skipping the topcoat because the membrane is already waterproof is how a sound roof starts to look failed, and then gets recoated for the wrong reason.
05 · Results
What does a job like this stand behind?
Generalitat Valenciana, Alcoy: Water tank lining has one standard. The coating is still doing its job after the building is back in use, at the details as well as in the middle.
Figures for cure, thickness and strength, where they are given, come from the product data sheets. They are not a test cut out of this building.
What this asks of Generalitat Valenciana, Alcoy: Water tank lining is workmanship at the difficult line. The open field is the easy part of a resin job. Outlets, edges, penetrations and changes of plane are where thickness goes missing, and where water or wear finds the gap. The same products and the same care belong there, and the cure is allowed to finish before the building goes back into use. That is the difference between a coating that was simply applied and a system that stays in service.
06 · Products
Products on this job
Impermax Polyurea H Flex
Named on this project. The data sheet carries the application window and the typical figures.
Impertop Fast 2K
Named on this project. The data sheet carries the application window and the typical figures.
07 · FAQ
Frequently asked questions
Where is this project?
Generalitat Valenciana, Alcoy: Water tank lining. España – Comunidad Valenciana
When was the work done?
2021.
Which products were used?
Impermax Polyurea H Flex, Impertop Fast 2K.
Why are the details done first?
Outlets, upstands and joints are where water gets in. They are closed with the same system as the main area.
Where do the cure times come from?
From the product data sheet. They describe the resin, not a clock stopped on this site.
The programme does not change because the building is smaller or further away. Prepare the substrate until it will hold the system, close the details before the field, and keep the thickness honest at every edge. A second visit to repair a starved detail costs more than doing that detail on the first day. Generalitat Valenciana, Alcoy: Water tank lining is held to that standard. Krypton Chemical supplies the resin. The applicator owns the surface.