A small British startup has withdrawn from the market for measuring heat loss from new homes after legal threats from a subsidiary of one of the world’s biggest insulation manufacturers.

In November, Saint-Gobain Isover, a subsidiary of Saint-Gobain, threatened to serve Redbarn Group with an injunction, and to sue for damages and costs, unless the startup agreed to withdraw Veritherm, its heat-loss measuring system.

Last week, Redbarn wrote to Saint-Gobain to capitulate, leaving Saint-Gobain’s system, QUB (‘cube’), as the sole method of cheap and rapid pre-occupancy heat-loss measurement available to UK housebuilders, according to experts in the field.

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