In Khan Younis, south Gaza, 42-year-old builder Ahmed Abu Jazar kneels in the dust outside his half-collapsed home. His hands are calloused from months of clearing rubble with a shovel and a crowbar. Today he’s doing something different: crushing chunks of concrete into fine gravel, mixing it with cement he bought from a neighbor, and pressing it into green plastic molds the size of milk crates. When the mixture sets, he pops out interlocking bricks that click together like Lego. “We don’t wait for aid trucks anymore,” he says. “If it comes, fine. If not, we build.”

Across Gaza, families are doing the same. Since October 7, Israeli airstrikes and ground fighting have destroyed or damaged over 60% of Gaza’s homes—around 300,000 structures. The UN estimates 2.3 million people need shelter, but Israel restricts imports of cement, steel, and wood, calling them dual-use materials that could strengthen Hamas. As a result, permanent reconstruction has stalled, leaving families to patch roofs with tarps and build walls from whatever they can scavenge or buy.

The rubble-to-brick method started with local engineers in late December. They adapted a simple block press—a hand-operated machine that costs about $300—then ran tests on strength and fire resistance. “We crushed samples in a lab at the Islamic University in Gaza,” says Dr. Yasser Al-Haj, a civil engineer who helped design the blocks. “They held 40% more weight than standard concrete blocks and didn’t crack in heat tests up to 80°C.” The team published a one-page guide online and shared videos on WhatsApp. Within weeks, block presses appeared in courtyards and school playgrounds across the strip.

Each brick weighs about 18 pounds and locks into place without mortar. Families stack them like giant Lego pieces to form walls up to eight feet high. Roofs are made from corrugated metal sheets laid across wooden beams scavenged from destroyed buildings. There’s no running water or electricity in most makeshift shelters, but the walls keep out wind and dust. “We’re not engineers, but we know how to build,” says Um Ahmed, a 58-year-old grandmother rebuilding her kitchen in Beit Hanoun. She’s turned her living room into a workshop, pressing bricks in the morning and stacking them by afternoon. Her grandchildren play between the piles, kicking the empty molds like toy trucks.

The method isn’t perfect. Bricks crack if overloaded, and some families report mold growing between layers from rain leaking through gaps. Engineers warn that without proper foundations, the walls could shift in an earthquake. Still, for now, it’s the only option. “We’re not waiting for permission anymore,” says Abu Jazar. “Every week we’re closer to a real roof over our heads.”

Aid still blocked, but rebuilding moves forward

Israel’s blockade isn’t the only obstacle. Fuel shortages mean block presses often sit idle for days. When diesel arrives, families line up with jerry cans at the few working presses. “We share fuel like we share bread,” says Abu Jazar. “Sometimes we trade a bag of flour for half an hour of pressing time.”

The Palestinian Authority has pledged $30 million for reconstruction, but most of it is stuck in Israeli banks due to sanctions. Meanwhile, Qatar and the UAE have sent small shipments of cement, but deliveries are erratic and don’t cover demand. Egypt has opened its border for medical evacuations, but construction materials are still restricted. “The world talks about ceasefires, but we talk about roofs,” says Um Ahmed. “A roof is safety. A roof is hope.”

What happens next

Engineers in Gaza are testing a new recipe: mixing rubble with plastic waste from destroyed greenhouses to make lighter, more flexible bricks. They’re also working with the UN to certify the blocks for permanent housing once restrictions lift. “This isn’t just a stopgap,” says Dr. Al-Haj. “It’s proof that even under fire, people can solve their own problems.”

For now, families keep building. Abu Jazar’s home stands four walls high, topped with a corrugated roof. Inside, the floor is packed dirt, and the only light comes through a hole where a window used to be. But the kitchen walls are solid. His wife is already boiling water for tea on a gas cylinder scavenged from the wreckage. “We’ll sleep here tonight,” he says. “And tomorrow, we’ll build some more.”

What You Need to Know

  • Source: Wired
  • Published: May 17, 2026 at 09:00 UTC
  • Category: Technology
  • Topics: #wired · #tech · #science · #war · #gaza · #middle-east

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Curated by GlobalBR News · May 17, 2026

🇧🇷 Resumo em Português

O sonho de reconstruir casas em Gaza ganha forma com tijolos feitos de entulho, uma solução criativa e urgente diante do bloqueio de materiais de construção imposto pelo conflito. Em meio aos escombros de mais de uma década de guerras intermitentes, famílias palestinas transformam pedaços de concreto, tijolos e aço em blocos interligáveis, semelhantes a peças de Lego, para erguer abrigos improvisados. A iniciativa, além de oferecer refúgio imediato, simboliza a resistência de uma população que recusa deixar sua terra, mesmo quando as portas da reconstrução oficial permanecem fechadas.

No Brasil, onde a crise habitacional e a escassez de moradias dignas ainda afligem milhões, o caso de Gaza ressoa como um alerta sobre os limites da solidariedade internacional e a urgência de soluções inovadoras em zonas de conflito. A história dos tijolos de entulho não apenas ilustra a engenhosidade humana em situações extremas, mas também expõe a hipocrisia de um sistema global que, enquanto financia guerras, falha em garantir reconstrução básica. Para os leitores brasileiros, sobretudo aqueles engajados em causas sociais e direitos humanos, o exemplo palestino serve como um espelho: mostra como a falta de políticas públicas pode empurrar comunidades para alternativas radicais, muitas vezes ignoradas pela mídia tradicional.

Ainda não está claro se a experiência dos tijolos de Gaza será replicada em outras regiões devastadas ou se será sufocada pela burocracia internacional — mas uma coisa é certa: enquanto as armas não silenciarem, a reconstrução criativa seguirá como única saída.

🇪🇸 Resumen en Español

El conflicto en Gaza ha empujado a sus habitantes a reinventar los escombros de la destrucción para levantar viviendas con ladrillos que imitan el sistema de construcción con piezas de Lego. Ante la imposibilidad de acceder a materiales tradicionales debido al bloqueo impuesto, familias enteras trituran los restos de sus hogares para crear bloques interconectables que permiten levantar estructuras básicas pero resistentes.

Esta ingeniosa solución, que mezcla desesperación y creatividad, refleja la crudeza de una crisis humanitaria prolongada donde más de 2,3 millones de personas carecen de lo esencial. Para los hispanohablantes, este ejemplo subraya cómo la tecnología y la necesidad pueden converger en contextos extremos, además de poner en evidencia las limitaciones de la ayuda internacional y la urgencia de un alto al fuego que permita una reconstrucción real, no improvisada.