Building materials have a major impact on indoor air quality, and must be considered throughout the design process. We favor materials that are naturally derived, and which do not contain toxins or chemicals (e.g. VOCs or added formaldehyde). In addition to limiting the sources of toxicity in our buildings, we also stress the importance of providing sufficient ventilation and filtration so that occupants get a steady supply of fresh, clean air at all times. We are also well-versed in strategies to mitigate radon, which may be found naturally on your building site. Our strategies for durability and ventilation are also helpful in creating healthy buildings, by minimizing the possibility of mold and mildew in buildings. Ultimately our goal in material choices is to to create a healthy environment for building occupants and construction workers, while also minimizing the impact on the larger environment.