Hemp-Lime Construction Workshop
Learn to Build with Hemp
Led by Tom Rossmassler, HempStone
2 Days
Saturday & Sunday
September 7-8
9:30am to 5pm
NYC, West Village
*exact location provided at sign up
Through hands-on participation and under the guidance of industry professionals from HEMPSTONE, you will learn the basics of hemp construction with precast blocks and cast-in-place techniques.
By the end of the workshop, participants will understand:
why hemp hurd is a high performing and sustainable building material
when, where and how to specify the material in your projects
how to mix, form, and cure hempcrete properly
how to construct walls using hempcrete and precast hemp blocks
Detailed Description:
Hempcrete is a composite construction material made from the chopped up woody part of the hemp plant and mixed with a lime-based binder. It can be cast into a timber frame on site, or pre-cast blocks can be used to form perimeter and interior walls.
Learn the fundamentals of construction with hempcrete in this 2-day weekend workshop.
Together, we will trial hempcrete’s thermal properties in an actual retrofit project, constructing a hemp block insulating wall in an historic townhouse in the West Village.
In addition to presentations and demonstrations, we’ll work in small groups and get our hands dirty laying out blocks, troweling lime mortar, mixing lime binder with hemp hurd, and hand-casting hempcrete. As a bonus, you will also learn about hempwool batts; where and when to use them and how to cut and install them.
The workshop will be led by HempStone personnel – Tom Rossmassler as instructor and Navid Hatfield as assistant. With a maximum of 12 participants, everyone will be able to dig in and gain practical experience.
Agenda
Day 1
Morning
-Introductions, site orientation, safety
-Hempcrete Fundamentals presentation
-Lime Basics; mortar, binders and plasters
Lunch on site (provided)
Afternoon
-Hands-on: hempcrete block installation including story poles, mortar mixing and block
-Review, Q&A
Day 2
Morning
-Hempcrete wall design and construction considerations
-Demonstration of hempcrete mixing, formwork and casting
Lunch on site (provided)
-Hands-on: 2 groups will rotate between hempcrete block install and cast-in-place wall segments
-demonstration of hemp batt cutting and installation.
-Review, Q&A