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EPDM roof of modular office buildings in La Rochelle after application of the PrimaTherm® system
Hélios project · Charente-Maritime · 2024

Offices in La Rochelle: 1,500 m² of EPDM roof treated with PrimaTherm®

Cool roof project: 1,500 m² of EPDM roof on modular office buildings in La Rochelle. Surface temperature halved, comfort restored for the occupants.

1,500 m²Area
EPDM membraneRoof type
Offices / commercialSector
1,500 m²
EPDM membrane
÷ 2
surface temperature

Measured result: Roof temperature halved, comfort restored for the occupants

The context

Modular office buildings in La Rochelle, covered with a dark EPDM membrane of 1,500 m²: the heat absorbed by the membrane made the offices hard to occupy in summer. The PrimaTherm® system was applied in four layers after an adhesion test on the EPDM.

The results

Roof temperature halved and comfort restored for the occupants, with the durability of the system (SRI maintained after 4,000 h of accelerated QUV ageing). See the page cool roof on waterproofing membranes for EPDM, bitumen and PVC substrates.

See also cool roof for offices and residential buildings, cool roof on flat roofs and our other projects.

Other projects

More roofs transformed

Roof of the Airbus Marignane site after the PrimaTherm® cool roof application, walkways and equipment preserved
Bouches-du-Rhône

Airbus Operations — Marignane

5,900 m² · Bitumen membrane

Roof of the large maintenance hall at the SNCF Lyon Gerland maintenance centre, treated as a cool roof, at sunset
Rhône

SNCF Voyageurs — Lyon Gerland

10,500 m² · PVC membrane

Roof of the Airbus Paris-Le Bourget site treated as a cool roof, ventilation equipment preserved
Seine-Saint-Denis

Airbus — Paris-Le Bourget (Dugny)

1,500 m² · Waterproofing membrane (flat roof)

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