Insulating in 2050, otherwise.
50°C heatwaves are no longer fiction. Tomorrow's climate is changing the thermal equation for buildings. The R coefficient alone is no longer sufficient.
Thirty minutes at 50°C to understand.
Climate Sense is a rather unusual truck. Inside, after passing through an airlock, it's fifty degrees.
The aim is for visitors to spend thirty minutes performing everyday gestures, in order to feel, in the body, what graphics struggle to convey.
If our bodies feel the heat so quickly, our buildings must also be designed to limit exposure to heat.
The R coefficient is indispensable. But by 2050, it will no longer be enough.
Le coefficient R characterises the resistance of a wall to heat flow by conduction. Without it, there would be no regulatory thermal calculation.
But a rigorous formulation is essential, because it changes everything for what follows:
The R reduces the intensity of the heat flow, but has no effect on the time dimension of the transfer.
A high R reduces losses in winter and gains in summer. It acts on amplitude. Not on the chronology. It does not directly affect Radiative exchange.
The R reduces the flow by conduction, but does not deal with radiation or the time dimension of the transfer.
The R'BULL Pro effect, viewed.
Click to compare the behaviour of a roof with and without reflective insulation.
The three levers summer comfort.
No modern insulation can do without these three physical mechanisms. Each plays on a different dimension of heat.
Reduce the flow
A high thermal resistance which reduces the flow of heat by conduction through the wall.
When ? Continuously, during the transfer.
Shifting the peak
A thermal mass which delays the spread of the heat peak. Delays, not eliminates.
When ? Delayed, after several hours.
Send energy back
A low-emissivity surface which strongly limits the absorption of radiation. Acts before entering the wall.
When ? Snapshot, before the entrance.
The R reduces the intensity of the flux. The phase shift shifts the peak in time. The reflector limits part of the radiation before absorption. It is this complementarity which becomes a determining factor as the heatwaves intensify.
All insulating materials are not the same over time.
Glass wool
R high, but the external heat peak is found quickly inside.
Wood wool
The internal peak is postponed for several hours, often in late night when you can ventilate.
Phase shifting works over time, not instantaneously.
Air conditioning move heat. It does not does not delete.
Air conditioning extracts heat from inside the home and rejects it outside. According to theADEME, this displacement results in :
- → A significant increase of energy consumption
- → A measurable contribution urban heat islands
- → A cost ofinstallation and maintenance recurring
The more heat we let in, the more we air-condition. The more we air-condition, the more we heat the outside air. The more the outside air heats up. it's a vicious circle.
Rational output : deal with the problem At source, rather than the compressor.
The two indicators that we always forget.
When we talk about insulation, we say "R". Rarely "emissivity". Almost never "solar factor". Yet these two parameters describe the part of the thermal equation that concerns the radiation, the main source of heat in summer.
Emissivity
Capacity of a material to absorb and then re-emit thermal radiation.
Solar factor
Share of solar energy transmitted through the wall.
R'BULL Pro : act at source.
Unlike conventional insulation, which slows down the flow once the heat captured, R'BULL Pro strongly limits the absorption of incident radiation. Its very low-emissivity surface works on the first stage, upstream.
Limiting radiative exchange
Between the sun-exposed roof and the living space.
Reflection of incident energy
As soon as the radiation arrives, before it is absorbed by the wall.
Reducing inputs at source
Even before conventional insulation is used.
Three technologies, three timeframes.
Phase shifting delays heat. Reflecting acts before it enters.
A wall, three protection.
The most effective approach is not one of opposition. It associate. Each technology deals with a different physical register, and their superposition covers the entire thermal spectrum.
The criterion that precedes everything else.
Comfort aside, the primary purpose of a building has remained the same for centuries: protect people and property.
R'BULL Pro is certified B-s1, d0 according to the AITEX report: low contribution to fire, little smoke, no flaming droplets. A reaction to fire compatible with demanding configurations, subject to validation by the AITEX complete system and the requirements applicable to the project.
Combined with mineral wool Euroclass A1 or A2, in this way, the entire system can achieve particularly high levels of reaction to fire, depending on the configuration chosen and its validation. It is the behaviour of complete systems in real-life situations that makes a structure safe.
The challenge of 2050 is not to isolate more. Isolating differently.
The right strategy does not solutions. It contact intelligently.
Ready to anticipate tomorrow's climate ?
Discover the R'BULL Pro range and our certified thin reflective insulation. Technical documentation and customised support.