Category Archives: Construction

Hemp in Tuscany

Margaret Baravalle, founder of Assocanapa and Felice Giraudo, historic president, explain how important it is to revive Tuscany’s long tradition of industrial hemp cultivation and the Italian variety called “Carmagnola.”

Since the sixteenth century, Italian hemp was considered the best in the world and the most valuable seed was the” Carmagnola,” which was grown in the Turin area. The shipbuilding industry relied heavily on hemp. Hemp was also used in the military as a versatile and durable material.

In the twentieth century, hemp production almost disappeared around the world.  But Italy maintained its commitment to hemp. Carmagnola was produced for seed and Caserta was grown mainly for fiber. Since 1990 Italy has managed to change the law for the cultivation of hemp and the market is reopening. Important germplasm has been preserved for the “Carmagnola”, the “CS” and “Fibranova.” Hemp is being used today in the textile industry, in the pharmaceutical industry, in the food sector (oil, flour, etc..), and in the construction sector. 

For more information (in Italian), please visit:

Putting PT 728 Back in Action

My name is Scott Sondles and I am the Co-founder of HempStrong LLC, a hemp based consumer product company from Columbus, OH USA. We plan on specializing in hemp body care, hemp supplements and hemp clothing. I am also currently writing a book regarding the legalization of industrial hemp in America.

I am looking for a company to work with to use hemp fibers to replace the hull of a PT boat (Patrol Torpedo boat) from World War 2. My father is the head director of the Liberty Aviation Museum in Port Clinton, Ohio and his non-profit has purchased one of two PT boats that are still in working condition. They are stripping the boat after discovering the wood under the deck had absorbed too much water.

Here is information and a picture of the boat, with more photos here. This boat is very unique in America and has gotten a large amount of press the past year including a blurb in USA Today.

These boats were originally made from wood, but the previous owner of PT 728 had redone the entire hull with fiberglass. This allows the owner of the boat to legally take passengers on board and make money. The only other PT boat that is functioning is still made of wood so it can’t take passengers (it’s in Oregon right now). PT 728 currently has half of its underside stripped and they are repairing the inner wooden ribs right now.

After learning that the owner is looking to use an alternative to glass fiber, I educated him on the possibility of using hemp and he is very interested. His museum likes the idea of possibly marketing the “Hemp for Victory” campaign since the museum specializes in World War 2. This could help educate American consumers about the potential of industrial hemp.

Do you know of any companies which could help with this project?

Thanks, Scott Sondles

Hemp as Building Material

Is hemp as a building material available in the U.S.?

Hemp as Building Material

Is hemp as a building material (called Isochanvre) available in the U.S.?  Tommy Larson

Hemp Insulation?

Where can I purchase hemp insulation for my home? I am curious about cost compared to fiberglass and availability in the U.S.?

#1. We are looking for insulation material for a timberframe house. We are located in Saskatchewan, Canada. -Lynne Driedger-Enns

Hemp as Natural Glue?

Do you know a process that can seperate the pectin and lignin from hemp and be able to use it? I want to try and make a resin or glue out of hemp’s natural “glue.” Do you know if that’s possible or been done before? Thanks for your help.

Hemp Felt Insulation and Horticultural Mats

I am writing to enquire about needle-punched and non-woven hemp felt blankets for use in insulation and also as a horticultural growing medium. Could you tell me whether you have a distributor/representative in Greece so that I can get samples and purchase your products?

Hemp for Knitting?

Where I could buy hemp yarn for knitting sweaters and other types of clothing. See, I can knit, and would like to knit myself some hemp clothing because to buy hemp clothing as it is, is way too expensive. Could you tell me anywhere I could purchase it in Calgary, Alberta, Canada or maybe order it online somewhere. I know lots of places to find twine and rope but what I want is hemp that is used to make clothing. Thank you very much, I looking forward to your answer.

#4. has a large selection of hemp and wool yarn, ideal for knitting. Everything Hemp – Clothing, Hats, Bags, Bath, Food and Twine – Come Explore – Over 1,000 – Wholesale and Retail. Binghamton, NY, e-mail:

. You can purchase hemp string and yarn at:

. You can buy hemp yarn or twine at:

#1. You can purchase these items at:

How to Coat Hemp Rope?

I found your site and hope you might be able to answer my question. I am using hemp rope to wrap supporting posts in a decorative living space and believe that it might be best to coat them for preservation. What can I coat them with? Varnish? Shellac? Wax? Etc? Thank you for your assistance in this small project, Chuck Moutvic

#1. Wax, or simply letting them be, they should last for years depending upon how much abrasion they recieve. I’d wax high-use areas though. Greg Willson
A #2. Hemp yarn can be coated with potato starch, maize starch, pve alcohol etc. Jakir Hossain, Dhaka, Bangladesh

Short Hemp Fiber Wanted for Plaster Reinforcement

I work for a strawbale builder in Southern California, and we are looking for a source of short (3-4 mm) hemp fibers. These would be used as a filler and reinforcement for earth plasters that are sprayed onto strawbale structures. Our sprayer clogs up if the fibers are much longer than 3-4 mm. We have had the best success so far with the undigested fibers in horse manure, but this presents some large scale processing and aesthetic problems. We have a sample of 3 inch hemp fiber intended for use in paper and as a cement reinforcement but it is too long. We tried cutting it to shorter lengths but the fibers tend to cling to each other, which is probably a desirable quality in other applications but not in ours. Does anyone produce a shorter, coarser fiber that would not stick to itself so much?

Hemp for Mats?

Could you tell me where I could find a distributor of industrial hemp mat with polypropylene? It is a loose mat that can be preheated and pressed. It is usually used for door panels and headliners. Any information would be much appreciated. Joe Harris

We are looking for natural fibers for mats. Please include info on hemp yarn and price per pound. Thank you.

Hemp for Roofing?

I build yurts and am looking for a natural fabric for roof material. Is there a way to waterproof hemp fabric and use it in an exterior application?

Sources for Hemp Products?

Where can a person obtain hemp products for building materials, clothing, oils, etc. or info on how to do it myself. I know it’s scarce right now but also know that it is possible to get these things. Thank you.

A #1. We are always looking for raw hemp sources.Yitzac Goldstein, Hemptex, Member of the GreenChina Textile Group

Hemp Fiberboard?

I am looking for more information on hemp fiberboard/insulation. Thank you, Don Keckley

Hemp Stucco

We would like to build a strawbale house using hemp stucco. Where can we find that in Canada?