Comments on: This Week in Prototype News http://thenauhaus.com/blog/index.php/2010/01/this-week-in-prototype-news/#utm_source=feed&utm_medium=feed&utm_campaign=feed Meta-braindump from our work and play Wed, 07 Jul 2010 04:09:49 -0400 http://wordpress.org/?v=2.8.5 hourly 1 By: Clarke http://thenauhaus.com/blog/index.php/2010/01/this-week-in-prototype-news/comment-page-1/#comment-688 Clarke Tue, 09 Feb 2010 17:50:20 +0000 http://thenauhaus.com/blog/?p=4237#comment-688 Adrien, For info on cost, you should contact our distributor, <a href="http://www.hemp-technologies.com/" rel="nofollow">Hemp Technologies</a>. It's a new material in the US, so cost are fluctuating. It's not an inexpensive system at this point. However, we couldn't have gotten the performance that we require with Durisol, as I'm sure you know also not an inexpensive wall system. The theoretical R-value of our hempcrete is about 2.5/inch. Durisol is much lower. Also, since Durisol is essentially an insulated concrete form, that system uses a huge amount of concrete. Hempcrete is about 85% hemp and the majority of the binder is lime. I think heavy mass exterior walls work well in some climates, but not ours. Here, insulation on the exterior, with mass on the interior is our approach of choice. Clarke Adrien,
For info on cost, you should contact our distributor, Hemp Technologies. It’s a new material in the US, so cost are fluctuating. It’s not an inexpensive system at this point. However, we couldn’t have gotten the performance that we require with Durisol, as I’m sure you know also not an inexpensive wall system. The theoretical R-value of our hempcrete is about 2.5/inch. Durisol is much lower. Also, since Durisol is essentially an insulated concrete form, that system uses a huge amount of concrete. Hempcrete is about 85% hemp and the majority of the binder is lime. I think heavy mass exterior walls work well in some climates, but not ours. Here, insulation on the exterior, with mass on the interior is our approach of choice.
Clarke

]]> By: Adrien Tanguay http://thenauhaus.com/blog/index.php/2010/01/this-week-in-prototype-news/comment-page-1/#comment-686 Adrien Tanguay Mon, 08 Feb 2010 05:49:13 +0000 http://thenauhaus.com/blog/?p=4237#comment-686 Hi, I was wondering what your cost was for the hemicrete was. I used durisol in my project and was wondering how the two wall systems compared. Thank you, Adrien Hi, I was wondering what your cost was for the hemicrete was. I used durisol in my project and was wondering how the two wall systems compared.

Thank you, Adrien

]]>