01 · Project overview

What is this project?

Fuerteventura Airport Roof Waterproofing with Impermax 2K in 2018. España – Canarias. The products on the job are Impermax 2K. The Canary Islands add salt wind to a strong sun. Edges and fixings feel that before the middle of a roof does.

In 2018 the crew pressure-washed the old green membrane, then the grey coat of Impermax 2K went on wet.

Krypton Chemical makes this two-component polyurethane membrane, which is applied with a hot spray machine.

Plant units sit on it, and a line of fixings runs across the field.

Krypton Chemical supplies the resin system. The duty is ordinary and strict: keep water, wear and weather on the right side of the structure, and do it in the details as well as in the open field.

ProjectFuerteventura Airport Roof Waterproofing with Impermax 2K
PlaceEspaña – Canarias
Year2018
LineWaterproofing
ProductsImpermax 2K

02 · The challenge

What did this structure ask of the system?

A roof is a field of outlets, laps and edges, and the weather works on all of them. Water does not leak through the middle of a sound bay. It gets in where the detail was thin or where the deck has started to move.

Fuerteventura Airport Roof Waterproofing with Impermax 2K has to be closed as one system, details first, and then left to do its job without a second visit every summer.

Fuerteventura Airport from the air, with the terminal and the flat roofs beside the runway
Fuerteventura Airport from the air, with the terminal and the flat roofs beside the runway

03 · The solution

Which system was trusted here?

The system trusted here is the one named for the job: Impermax 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?

Impermax is the cold liquid polyurethane. Stir it slowly, let the bubbles rise, and lay it by roller, brush or airless spray. Two coats in different colours, about 1 kg per square metre each, make the coverage obvious. A spiked roller knocks bubbles down while the film is wet. Outlets, upstands and cracks are detailed first. Keep the deck between 5 and 40 degrees C, and keep it dry.

On a warm day a coat is walkable in one or two days. About 90 percent of final properties arrive in three days, and full hardness takes 10 to 15 days. Wait that long before the surface is held under water. Typical elongation is 450 to 600 percent. The resin is aromatic, so a roof left in the sun is given an aliphatic topcoat if the colour has to stay true. Again, these are datasheet figures, not a reading taken on Fuerteventura Airport Roof Waterproofing with Impermax 2K.

On Fuerteventura Airport Roof Waterproofing with Impermax 2K 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?

Fuerteventura Airport Roof Waterproofing with Impermax 2K 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 Fuerteventura Airport Roof Waterproofing with Impermax 2K 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 2K

Named on this project. The data sheet carries the application window and the typical figures.

Technical data sheet

07 · FAQ

Frequently asked questions

Where is this project?

Fuerteventura Airport Roof Waterproofing with Impermax 2K. España – Canarias

When was the work done?

2018.

Which products were used?

Impermax 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.

Are the figures measured on this job?

No. Thickness, elongation and cure times quoted here are the products’ typical data.

08 · Photos

On site

Finished light grey roof at Fuerteventura Airport, with plant units and the hills behind
Finished light grey roof at Fuerteventura Airport, with plant units and the hills behind
Fuerteventura Airport from the air, with the terminal and the flat roofs beside the runway
Fuerteventura Airport from the air, with the terminal and the flat roofs beside the runway
Workers pressure-washing the green membrane on the airport roof
Workers pressure-washing the green membrane on the airport roof
Wet grey coat meeting the open area, with the spray hose on the right
Wet grey coat meeting the open area, with the spray hose on the right
Worker spraying the light grey coat onto the green airport roof
Worker spraying the light grey coat onto the green airport roof
Finished light grey roof with a vent and a drain in the upstand
Finished light grey roof with a vent and a drain in the upstand
Three workers walking the green membrane, with the control tower behind
Three workers walking the green membrane, with the control tower behind
Wet coat with the hose across it and the light masts behind
Wet coat with the hose across it and the light masts behind
Green membrane edge beside the metal roof, with the bus stands below
Green membrane edge beside the metal roof, with the bus stands below
Long gutter between the coated area and the green membrane, with buckets along it
Long gutter between the coated area and the green membrane, with buckets along it
Close view of the pressure wash on the green airport roof membrane
Close view of the pressure wash on the green airport roof membrane
New wet coat beside the area still open, with the control tower in the distance
New wet coat beside the area still open, with the control tower in the distance
Detail of the grey coat on a rounded curb at the roof edge
Detail of the grey coat on a rounded curb at the roof edge
Gutter channel coated grey beside the gravel strip
Gutter channel coated grey beside the gravel strip
The coat at the outer edge of the Fuerteventura airport roof
The coat at the outer edge of the Fuerteventura airport roof
Aerial view of Fuerteventura Airport, the terminal and the parking roofs
Aerial view of Fuerteventura Airport, the terminal and the parking roofs
Green membrane beside the metal roof, with the control tower ahead
Green membrane beside the metal roof, with the control tower ahead
The old green roof running toward the control tower
The old green roof running toward the control tower
Narrow green roof between parapets, with the control tower behind
Narrow green roof between parapets, with the control tower behind
New light coat meeting the old green membrane
New light coat meeting the old green membrane
Close view of the spray gun laying the coat up to the roof edge
Close view of the spray gun laying the coat up to the roof edge
Worker rolling the edge where the grey coat meets the green membrane
Worker rolling the edge where the grey coat meets the green membrane
Wet grey coat with a safety line, and the control tower behind
Wet grey coat with a safety line, and the control tower behind
Channel between the green membrane and a pale roof area
Channel between the green membrane and a pale roof area
Finished grey roof with vents, the sea and the airfield beyond
Finished grey roof with vents, the sea and the airfield beyond
Three workers on the wet finished roof
Three workers on the wet finished roof
The runway and the sea seen from the airport roof
The runway and the sea seen from the airport roof

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