ID#10413 made on
MRc2 - Environmentally preferable products
Rating System Family:
The building material "adobe" should qualify as an Environmentally Preferable Product under LEED H MR 2.2 (a) in the Exterior Wall, Framing /Wall Structure Component and the Interior Wall, F...
The building material "adobe" should qualify as an Environmentally Preferable Product under LEED H MR 2.2 (a) in the Exterior Wall, Framing /Wall Structure Component and the Interior Wall, Framing component. This point seems designed to award points for materials which come from particularly sustainable sources. As examples the current Rating Guide lists materials with a high recycled content, concrete with greater than 30% fly ash or slag, or in the case of wood frame walls FSC certified, reclaimed or (only in the exterior walls) finger jointed studs. In other components the points are awarded for bamboo or cork flooring and for sealed concrete flooring. In all of these cases the materials selected seem to have been listed because of high recycled content, or because of especially renewable origins for the materials involved.
Adobe is made of dirt with a little water and, on occasion, a bit of straw. These are ultra-renewable resources, and available locally almost everywhere in the world. The resultant building product has a near-zero carbon footprint (where it is produced) and consists almost entirely of the most available renewable resource in the world, common dirt. This seems to be the exact kind of material this category was intended to recognize.
Yes, Adobe can qualify for credit in MR credit Environmentally Preferable Products under Option 1 (LEED v4) for local production. Option 2 of the credit rewards the use of products with low environmental impacts. Given that either rammed earth walls or adobe brick do not require intensive manufacturing or firing processes or the use of much water when compared to conventional masonry or wood studs, yes, the use of this material can contribute towards earning Option 2 (LEED v4) of MR credit Environmentally Preferable Products. The adobe must be locally-sourced, as defined in LEED for Homes and the adobe must be made up of 90% adobe, by weight, to contribute.
Related Addenda (Corrections & Interpretations)