CovaSeal 20 - Cool roof liquid waterproofing

Extends sealing life

UV-resistant, dirt-resistant, reduces thermal shock and provides effective protection against weathering and water infiltration.

Long-lasting protection against heat

Limits solar heat gain, improves thermal comfort and reduces air-conditioning costs.

Extends roof life

Preserves the roof's structural integrity over the long term by reducing natural wear and tear and avoiding costly long-term repairs.

CovaSeal 20 offers up to 20 years of waterproofing and whiteness maintenance on your roof.

CovaSeal 20 Top Coat is UV-indestructible: it prevents chalking and delays yellowing. It clogs up three times less quickly than a traditional solution, provides excellent UV protection and stabilizes the coating's whiteness over the long term, up to 20 years.

Spend less to insulate your roof

Cool roof Covalba reflective coatings are a less expensive alternative to traditional insulation work.

Promoting well-being at work

Cooler air by an average of 3°C to 6°C without the need for air conditioning

Reduce electricity bills

By limiting the calories entering the building, air-conditioning use is reduced by 15% to 40%, depending on your activity.

Help maintain temperature set points

To guarantee the safety of goods and the comfort of people.

Extend the life of your roof

CovaTherm protects the roof from temperature variations that weaken membranes.

Boost solar panel performance

Maximizes solar reflection and creates a cool zone for more production

The solar reflectance index is a value that represents a roof's ability to reject solar heat. An index is determined by a calculation according to ASTM 1980, which takes into account measured solar reflectance and thermal emissivity.

SRI values generally range from 0 to 100, with particularly hot materials reaching a negative value, while particularly cold materials will exceed 100. Please note that SRI does not apply to vertical surfaces such as walls, due to the nature of the calculation, which is based on a horizontal surface.

With an SRI = 119 when new and SRI = 118 when aged, CovaTherm is positioned as the best-performing reflective roof coating in Europe.

💡 Do you have questions about membranes, EPDM or flat roof maintenance? Browse all our articles on roof waterproofing.

To clarify the importance of the SRI index, let's go back to some basic concepts. Solar reflectance describes a surface's ability to reflect solar radiation back to the atmosphere. This applies to both visible and invisible light (especially UV rays).

Reflectance is measured as a percentage: a commercially available white paint with high reflectance can reflect up to 75% of the sun's rays during its period of maximum effectiveness (wear and tear and deposits will rapidly blacken it). CovaTherm technology, on the other hand, reflects 94% of solar radiation.

💡 Discover what reflective waterproofing can do for your roof.

Thermal emittance represents a material's capacity to emit heat previously absorbed in the form of thermal radiation. The higher the emittance percentage (index between 0 and 1), the more heat is released. CovaTherm reflective paint allows 88% of the heat received to be reflected back, keeping covered surfaces cool.

Covalba applies a protective layer to the reflective paint: CovaTherm Top Coat, whose self-cleaning properties reduce soiling from surrounding pollution. As a result, the roof remains bright white over the years, retaining its ability to reflect the sun's rays.

We do, however, recommend that you carry out an annual inspection of your roof to check that no external elements are interfering with the perfect whiteness of the reflective paint you've applied. At the same time, we recommend that you clean your roof with water, to remove any particles that may have accumulated on the coating and improve its solar reflection performance.

Installation of the CovaTherm roofing system by our certified applicators is covered by a two-year warranty. This takes into account the perfect adhesion of the system to its substrate.

The accelerated aging test of 4000 hours of exposure in a QUV enclosure (SRI in aged condition) proves that reflective performance is maintained at the same level as when new.

The CovaTherm Top Coat (UV and natural dirt protection) guarantees reflectivity for up to 20 years. We recommend rinsing the roof with water once a year.

CovaTherm is first and foremost a thermo-reflective coating, and is not a dedicated solution for waterproofing roofs: under no circumstances should it be considered as a main component of the roof's waterproofing system.

However, the coating is thick, elastic and highly resistant. It can fill micro-cracks of up to 2mm. Its application creates a continuous film that helps improve overall roof waterproofing and extends the life of coated materials by reducing thermal stresses and shocks.

CovaTherm 8 and 20

Cool roof solution for all roofs

CovaMetal 20

Cool roof anticorrosion solution

Polycarbonate solar lacquer

Solution for vaults and skylights

CovaSeal 20 Cool roof liquid waterproofing

Extends sealing life

Long-lasting protection against heat

Extends roof life

CovaSeal 20, the 2-in-1 solution for a watertight, reflective roof

Features

The advantages of the Covalba cool roof

Spend less to insulate your roof

Promoting well-being at work

Reduce electricity bills

Help maintain temperature set points

Extend the life of your roof

Boost solar panel performance

Join our network of applicators

Covalba answers your questions

Discover also

CovaTherm 8 and 20

CovaMetal 20

Polycarbonate solar lacquer

Covalba, specialist partner in cool roof solutions for all professionals.