Tires, Cans and Bottles, Oh My! Part 2
May 27, 2011
It’s hard to believe that it’s been a year since we first started working on the “Garbage Garage” , a new garage constructed using rammed-earth tires and salvaged glass bottles. (see our post from June 2009)
Last month, the painters completed their work. It is done!
In this blog, I’ll discuss our design process and preparing for construction. Next month’s blog will be focused on the construction process.
The genesis of this project was my client, Elizabeth Rose, who is president of Long Way Home, a community-based, nonprofit organization in Guatemala that is building homes and schools using these construction methods. In Guatemala, these construction types are a perfect solution for very poor residents who need shelter and community buildings. In addition to the benefits noted above, building with tires, cans and bottles is cheap; the materials are virtually free, labor costs are low, and the building techniques are easily taught to otherwise unskilled laborers.
Elizabeth saw her family’s need for a garage as an opportunity to showcase alternative environmentally sustainable building practices and to help potential supporters understand the important work that Long Way Home is doing.
We are grateful to our amazing clients (Elizabeth and her husband Joe) for the opportunity to be involved in such an interesting and important project. We appreciate their tenacity in getting the project done and their amazing outlook even during the biggest challenges we encountered.
Construction Documentation and Planning for Construction
The project was quite a journey…we worked hard with Joe Fix, our structural engineer, on proper detailing for the project. The wall details and construction became a hybrid of the methods used by Long Way Home in Guatemala and methods traditional for this area and required for permit approval. Ericka Temple, who is part of Long Way Home, assisted with the construction drawings and was also part of the construction crew. The final design included a massive concrete foundation with steel reinforcing bars anchoring the foundation to the tire walls. Here is one of the wall details:
Placing the garage on the site was another challenge. Construction of the garage would be near a beautiful cherry tree and we needed to avoid harming it during construction. We also wanted the placement to ensure that the garage was not seen first while approaching on the drive. Matt Ulrich from UBLA provided the site design work for what proved to be a perfect location for the new garage.
We had some touch and go with the moving the project forward. Our first hurdle was finding a contractor comfortable working with the rammed-tire process. Our clients planned to bring a Long Way Home crew from Guatemala to complete the tire portion of the project, but contractors were still squeamish and bid the project (high) accordingly. We even had one low point in the project when our client requested that for cost reasons, we revise the drawings for conventional construction. The project lost all momentum until Elizabeth said, “Wait! What are we doing?” She really wanted the garage to be as originally conceived, a demonstration of construction using salvaged materials.
GreenBridge’s partner company, The Riverview Company, stepped up to the plate. Steven was excited to see the construction method and was comfortable working with the Long Way Home Crew. Next hurdle – permitting!
The Permit Process
When we were initially looking at the project, I spoke with the Georgetown building inspector. He was excited to work with us in the permitting process. He is also a ‘green’ builder, and we felt we had a strong advocate in the town. Once we were ready to submit for permit, we found out that he no longer worked there!! The interim inspector ended up being incredibly helpful and supportive of the project, but did request review from the state inspector and additional engineering documentation for the project. Once we’d submitted proper engineering documentation and agreed to have the rammed earth in the tires tested for compaction throughout the construction process, the permit was approved. We obtained structural reports from EarthShip verifying the structural integrity of the rammed-earth tire walls, and we engaged McPhail and Associates to provide compaction testing.
With our soils engineer at the ready, contractor in place, and plane tickets purchased for the Long Way Home crew, we were ready for construction. Stay tuned to our next blog on construction of the Garbage Garage!
Juli MacDonald, GreenBridge Architects