Growing Pains

Hempwool insulation has a low carbon footprint, shows excellent insulation values, is hypoallergenic, and due to its ingredients allows for a non-hazardous installation. According to Hempitecture, the mix of 92% hemp fiber and 8% polyester is heated to bond and increase strength. Polyester is petrochemically based and will not biodegrade. Alternatives are other man-made substances, currently. We appreciate this North American-made product and look forward to a healthier option as it evolves. It contains 89% Biobased Content and has been awarded the USDA Certified Biobased Product Label in the BioPreferred® Program.

Note: Hempwool's declare R-value is 3.7/inch.

Hemp hurds are the tough woody interior of the hemp plant. It is harvested by decorticating - separating - the inner hurd material from the softer, fibrous exterior of the stalk.

The component silica (sand) in the plant prevents from burning or rotting and with the immense strength of the hurd it makes Hemp Hurd an versatile building material - it is used in, e.g., insulation and wall systems.

HES Hemp Hurd is mainly from Europe with the US distribution currently on the west coast.

The HES-hemp hurd R-value is declared at 3.1/inch.

New York Textile Lab designs yarns and textiles with an economically diverse and sustainable supply chain at the forefront of their mind. The fibers used are grown on climate beneficial soil within the North Eastern Region.

This Hemp Wool Yarn is developed by the Textile Lab and produced with partnering manufacturers in the USA.

Hemp oil is a healthier finish and works particularly well on wood. The Real Milk Paint’s Hemp Oil is free of additives, preservatives, solvents, and VOCs. It is thinner than tung oil, making it easier to apply without the addition of a solvent. However, hemp oil is less durable and waterproof than tung oil. Hemp oil is food safe and works especially well on lightly used items.

IsoHemp’s hempcrete blocks are a non-load-bearing masonry product. These natural, healthy blocks are designed to be used for insulating envelopes, partition walls, and counter-partitions. Made only from hemp and lime, hempcrete’s ability to diffuse accumulated heat makes it a fantastic thermal regulator. This product also regulates humidity due to its permeability and is naturally very fire-resistant, making toxic flame retardants obsolete. Not only are IsoHemp hempcrete blocks good for human health, they also have a positive environmental impact. Their manufacture requires very little energy, and they act as a carbon sink, actively absorbing CO2 from the air.

Just Bio Fiber's hempcrete blocks are a breathable, durable, non-toxic alternative to typical structural wall assemblies. Made primarily from hemp and lime, these blocks are Declare Red List Free as well as naturally fire resistant. Wall systems built with these blocks regulate temperature and humidity while retaining heat. They also do not require a vapor barrier and are resistant to mold, insects, rodents, and mildew.

Tradical® Hemcrete® is a highly sustainable hemp-lime product line designed to create insulating walls in new structures or to retrofit existing floors, roofs, and walls with thermally efficient, breathable insulating layers.

Ecologic™ HempCrete Binder Platinum is a lime binder formula made in America. It is used to be mixed with hemp hurd for non-structural insulation, widely known as Hempcrete.

Limeworks are serious experts through their profound experience in masonry, historic restoration and working with Lime - Naturally Hydrated Lime (NHL). Production with NHL requires less energy, hence the release of CO2 is reduced considerably and NHL reabsorbs most of the CO2 during the curing process.