What is the longevity of the paint?

Under proper surface treatment prior to the paint application, we would expect the paint to last anywhere between 7-10 years before evaluating another re-coat.

How do I apply the paint? Is specialist training required?

No specialist training required. The paints are water based and low-voc. The surface being coated must be cleaned and let to dry first. Mix the paint well before use and apply with a roller onto the surface. If air spraying, dilute with a bit of water till easily sprayable. Between each coat, allow 2-3 hrs to dry.

How much does it cost?

Each roofing material is unique, and some surfaces need more coats of a primer, sealer or topcoat than others. The whole system cost will vary on the layer system selected. Message us with details of your assets surface and for latest pricing.

Reduce your asset's heat problems with a paint that cools!

For asset owners and businesses having containerised or building assets, Stellar White radiative cooling coating reduces exterior surface temperatures up to 30°C, reducing interior cooling costs by up to 20%.

We predict your ROI and asset level cooling.

Book A Call

The Cooling Paradox

With more extreme summer temperatures our ability to keep cool is becoming more challenging. Air conditioning will become 2x more expensive to run, workers will feel less comfortable and our construction materials start to degrade faster. Active cooling has contributed 1GTCO2 to our atmosphere and it's time we rethink how we keep cool.

Emissiv was found by graduates of Imperial College on a mission to improve society's heat resilience and are redefining the space with paints that shield your assets from solar radiation and actively emits any remaining heat back to space!

For those looking to beat the heat!

ADD MEASURABLE COOLING THROUGH A FAMILIAR COATING WORKFLOW

BENEFITS OF EMISSIV

Offer clients a higher-value heat-resilience retrofit that can be roller or spray applied, without installing new mechanical plant.

Familiar, low-disruption application
Clear surface-preparation and quality-control guidance
Support with surveys,scoping and client proposals
Measured results that demonstrate project value
A differentiated retrofit service for roofs and modular assets

Become An Application Partner

SPECIFY PASSIVE COOLING WITH EVIDENCE

BENEFITS OF EMISSIV

Use site-specific thermal modelling, monitored pilot data and application guidance to build radiative cooling into a defensible project specification.

Quantify surface, indoor temperature and cooling load impacts.
Assess climate, substrate and building-specific performance
Define monitoring and verification requirements
Access technical and specification support
Reduce dependence on additional mechanical cooling

Assess a Project

COMMERCIAL BUILDINGS

EXAMPLE ASSETS

KNOWN HEAT RISK

Large roof areas can absorb solar heat for hours, pushing heat into occupied spaces and increasing the work required from cooling systems.

Solar heat gain through the roof
Overheating and occupant discomfort
Lost productivity
High HVAC cooling bills
Roof degradation

Offices and retail
Warehouses and logistics
Data Centres
Schools and Healthcare
Light Industrial

Where Emissiv Fits

Coat exposed roof areas, monitor the temperature response and model the effect on indoor conditions, cooling demand and operating cost.

Discuss this use case

MODULAR UNITS

EXAMPLE ASSETS

KNOWN HEAT RISK

Lightweight structures have limited thermal mass and can heat rapidly, especially when cooling capacity is small or occupancy changes through the day.

Rapid indoor temperature rise
Occupant comfort
Lost productivity
HVAC near capacity
Prolonged downtime
Higher OPEX

Site cabins and welfare units
Modular classroom and clinics
Telecom and equipment shelters
BESS units
Modular data centres

Where Emissiv Fits

Coat the roof and other sun-exposed surfaces to reduce heat entering the unit, with modelling tailored to the construction and operating schedule.

Discuss this use case

PILOT CASE STUDIES

Prove cooling value on your own asset.

A structured Emissiv pilot turns a section of roof or exposed surface into a measured business case, with a scope matched to your asset, climate and operational priorities.

CAREYS / MODULAR SITE UNITS

Less heat entering a working cabin.

A site pilot with CAREYs compared a coated and uncoated modular site office units during summer conditions. Thermal monitoring recorded a substantial change at exterior surface level, alongside lower indoor temperatures and reliance on portable cooling in the treated unit.

Up to 20°C

Reduction in roof surface temperature

Up to 6°C

Cooler indoor cabin temperatures

OPERATIONAL OUTCOME

A cooler, more comfortable modular workspace

A low-disruption coating retrofit applied to a heat-exposed site cabin.

EARLS COURT / 90 m² OFFICE ROOF

Cooling measured from roof to room.

Early monitoring compares Emissiv's coating with an uncoated roof area. The results show measurable cooling at the surface, within the near-surface air layer and inside the space below.

Up to 30°C

Reduction in roof surface temperature

Up to 4°C

Cooler than ambient air.

Up to 3°C

Cooler indoor office temperatures

Up to 10°C

Lower near-surface air temperature than above the uncoated roof

MODELLED IMPACT

~20% predicted cooling-load reduction

Based on Emissiv's thermal modelling of the observed cooling effect.

Initial pilot results under observed site and weather conditions. Performance varies by climate, substrate, building construction and application. Cooling-load reduction is modelled, not directly measured.

Before

After

01
Assess

We review your asset, heat exposure and operational priorities.

02
Model

Our thermal models estimate cooling impact, energy savings and ROI.

03
Instrument

Sensors establish a trusted baseline before application.

04
Apply

The water-based coating is roller or spray applied to the selected area

05
Verify

We monitor performance and turn the results into an investment case.

Book A Call

HOW THE COATING WORKS

Reflect the sun. Release the heat.

The coating manages two energy flows at once. It reflects incoming sunlight before it becomes heat, then releases thermal energy through the atmospheric window into cold space.

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Solar Reflectance

95%

Reflect sunlight

The coating reflects 95% of incoming solar energy, reducing the heat absorbed by the surface during the day.

95%

Thermal Emittance

Release the heat

The coating emits 95% of thermal radiation, including through the 8–13 μm atmospheric window, using space as a heat sink.

Asset

Modelling

Prove the Impact

Building physics links the surface response to indoor conditions, HVAC load and ROI

YOUR ROOF SURFACES BEST FRIEND

Two systems to keep you cool!

STELLAR WHITE

Inorganic Series

Water based & low-VOC
Silicate resin base
Suitable for cementitious and ply roof substrates.
Sealer + topcoat system
Water + UV resistant

Organic Series

Water based & low-VOC
Acrylic emulsion base
Suitable for metal, concrete and other roof substrates.
Sealer + topcoat system
Water + UV resistant

Our Team

Founded by Imperial College London graduates, we are a collective of scientists, engineers and entrepreneurs passionate about tackling the impacts of climate change and rising temperatures.

Sandra Go

Co-Founder & CEO

Ex-GIC

Nikhil Dawda

Co-Founder & CTO

Ex-Arup

Manav Vakil

Material Scientist

Anthony Kwawu

Software Developer

Ex-Goldman Sachs

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Dr Andreas Kafizas

Advisor

Solar Coatings @ Imperial

Luca Matrone

Advisor

Head of Energy IB @ Intesa Sanpaolo

Supported By:

Frequently asked questions

The heating penalty is expected to be a minimum. In the winter, the sun angle is lower and the days more overcast. This means comparatively not much sun to reflect and no clear skies for the radiative cooling property to work efficiently. Exterior surfaces may be a few degrees cooler in the winter (15 to 12°C), but the effect in the summer is taking the surface from (70 to 35°C). The summer benefit greatly outweighs the winter penalty.

Get in Touch

Interested in learning more, working with us or joining our team?

Drop us a message - we'd love to connect!

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Reduce your asset's heat problems with a paint that cools!

The Cooling Paradox

For those looking to beat the heat!

Prove cooling value on your own asset.

Less heat entering a working cabin.

Up to 20°C

Up to 6°C

01 Assess

02 Model

03 Instrument

04 Apply

05 Verify