#Will hurd smart wall windows#

The palette will be updated as new technology, research, and data becomes available. The Carbon Smart Materials Palette is a living resource that reflects the best available knowledge and resources at this time. The Carbon Smart Materials Palette® is a project of Architecture 2030. Criteria needs to be adjusted towards performance objectives rather than other industry prescribed conveniences. Studies need to be conducted to validate properties of hempcrete, and building codes adapted, so that municipalities can permit these buildings. Studies indicate insignificant performance gain between 9”(22cm) and 12”(30cm) walls in the UK.

Though hand packing can create inconsistent densities, it hasn’t been shown to affect performance. Hempcrete properties vary depending upon method used to build. Price and quality need to be evaluated for practical use. Proprietary blends of hempcrete binder are available in the US.

(Additives are currently available in Europe.) The contents include commonly occurring minerals in the form of clay, silicates/alumina, and ashes. Alternatively, correct proportions of silicates and other mineral additives may be formulated to mimic the NHLs of European usage. Natural Hydraulic Limes (NHLs) are not typically mined in North America, as there have been few uses for them before.Sources of naturally occurring hydraulic limes are not well studied or documented in the US, though they may exist wherever ancient sea beds were exposed to volcanic activity. Bushy varieties grown for seed require a different processing method these stems may be more suitable for paper and other products

Tall plants that are harvested for fiber are the easiest to process for hurd. The various growth habits and varieties of hemp present different processing challenges. The embodied carbon of hempcrete could be greatly reduced if hurd processing and binder formulation were made locally or regionally available. Hemp hurd processing is currently available to US markets from the Netherlands, China, and a few small scale processors in the US and Canada. There is some speculation that a hemp/lime slurry could be 3-d printed.Īcknowledged Challenges, Questions & Unknowns With proper equipment, hempcrete can be sprayed, including onto masonry walls, or as pre-cast panels. Hempcrete could be used in new construction or retrofitted over existing framing.

Hempcrete can be used in multiple applications

#Will hurd smart wall windows#

Hempcrete can create an air-tight wall assemblyįinished with lime render, there is no opportunity for air flow when the finish is properly wrapped to windows and door openings. The hempcrete wall system transmits humidity, is fireproof, deters insects and rodents, resists mold, (can recover from water penetration without molding), has excellent acoustic performance, is recyclable, has no VOC or other toxins, and can endure for centuries. Walls that are typically 12” thick provide requisite R-Value (~2.5/in.) Durability: moisture, fire, and insect Resistance Hempcrete wall systems are highly insulative and act as thermal mass. Hempcrete uses the woody core (hurd) of the hemp plant that is often considered a waste or byproduct. Hemp is typically grown for fiber, seed, medicinal CBD’s, animal feed and other uses. Hemp is a very efficient and fast-growing plant, growing as tall as 15 feet in a season.