“We choose to build naturally because of its low carbon footprint and sustainability. We use natural materials like clay, river rocks, wood, bamboo, rice straw and carabao dung. Natural building is inexpensive, healthy, environment-friendly and the materials are readily available. As much as we can, we minimize the use of industrially produced materials like cement and steel.
Among the different types of natural building like adobe and rammed earth, we opted for cob (clay, sand, straw and water). [Ed: most call this earth plaster.] As beginners, cob is the best technique for us. In our designs, we incoporate the components of the traditional Filipino hut (bahay kubo).
The great thing about our project site is that the materials we need to build are locally available. We have the creek for rocks, gravel and sand. We use rice straw given to us by neighbors. We have a bamboo forest with a particular species locally called “bolo,” which is good for making walls and frames. For posts, we use the bamboo called “bayog,” which we buy cheap from a nearby seller. This kind of bamboo is good for building so we started planting for our future needs. For the thatched roofing, we have neighbors who sell cogon grass, one of the traditional roofing materials used here in the Philippines. And we get our supply of clay soil within the property.”
Read more at the source: The Pitak Project