What can bring together an architect and a zootechnical engineer? Besides friendship, a project to cover houses with coarse wool. This can be attested by Alejandra Nuñez Berté and Ernesto Benavidez, the creators of AbrigA, the initiative that proposes transforming a nearly worthless byproduct, and often discarded, into a key material for construction. Its thermal and acoustic insulation blankets have already covered houses, domes, motorhomes, and even hotels. In the big city, and in the interior, this triple-impact alternative is growing thanks to the search for sustainable materials, with lower energy expenditure, but just as effective. And that, as is the case, also creates a new circuit for the productive sector. The initial doubt that fueled the project, a thesis that gave it shape, and the long journey that ended up in works all over the country. In dialogue with Bichos de Campo, one of the voices that leads the initiative stopped to talk about how AbrigA was born and made it ...