A Non-Profit Uses Compressed Earth Blocks to Build Happy Homes in Haiti
Last Updated: Mar 28, 2025In May 2021, Ryan Runge, owner of AECT (Advanced Earthen Construction Technologies) near San Antonio, Texas, received a phone call that intrigued him. One of the BP714 compressed earth block machines that his company had manufactured needed maintenance. The machine, which uses hand-operated levers to produce interlocking, holey CEBs (compressed-earth blocks), was in Haiti. Owned by the non-profit organization Welcome Home Haiti (WHH), which is in the northern part of the country a short distance from Cap-Haitien, local workers had used the machine to manufacture 100,000 blocks for 130 new homes.
Table of Contents
- Out of Tremendous Need, A Home
- CEB Blocks
- What Is Best The Best Soil Mix for Compressed Earth Blocks?
Runge headed down to Haiti and helped the workers in the CEB facility "perform some of the 100,000-block maintenance actions," he wrote on his blog. Runge also "got the machine running like a clock again, producing over 1,000 blocks per day!"
"The CEB plant is especially valuable because decent building materials are not readily available on the island," he wrote. "With their BP714 machine, WHH and crew [can] produce enough fireproof, hurricane-proof, and earthquake-proof CEBs to build a house every week."
Steve Hari, WHH's co-founder, and field director, first visited the area with his son Tyler in 1999 on a mission trip through their church. They quickly realized the need for decent housing. "The community's spiritual, medical, and educational needs were met," Hari says, as the church had helped fund and build worship areas, a health facility, and a school.
Roudeline, her husband Weegtchen, and their two children are not only the happy recipients of a WHH compressed-block home; Weegtchen also works fabricating blocks for future houses. "The work is a strength in my life because before when I wanted to work, I had nothing," Weegtchen said in a WHH video. "I didn't have a vision or goals. Since Welcome Home Haiti, my life has changed."
Roudeline adds that "For me, this house means a lot. We didn't have anywhere to sleep before. I can't find the words to say [exactly what I mean], but the truth is I have a joy in my heart. We were suffering so much. We had a great need. Now, we're rejoicing in this house."
What Is Best The Best Soil Mix for Compressed Earth Blocks?
The formula used by Welcome Home Haiti is 60% dirt, 30% sand, and 10% cement. "We did a lot of testing. The sand is like the bones, and the clay is like the muscle. You have to have the right balance in the block to make it the strongest. We made different batches to see which one was the strongest."
Camille LeFevre
Camille LeFevre is an architecture and design writer based in the Twin Cities.