The Materials Book

Building with Boulders: Use stones excavated from a site to connect a structure to its locale It’s not unusual to find rocks and even boulders lurking just beneath the surface of construction sites. These are typically hauled away at great expense, but here’s a better idea: use them in your project. This one was placed above the fireplace in a private home, where its unique texture and shape offer a reference to the history of the site while balancing temperature swings with its great thermal mass. And as a nonprocessed, locally sourced raw material, its environmental impact is minimal. Example: Excavated boulder seen in the mantelpiece of a private home in Malveira da Serra, Portugal Contributed by: José Forjaz, Mozambique 318