Norm spoke at the Guelph Organic Conference January 31, 2015 on Greenhouses 101: Knowing the basics before you buy-Choices and Consquences You can find the articles and information posted, as well as a video of his presentation and the Q&A below.
Norm did a presentation at the Guelph Organic Conference on Greenhouses 202: Making sure your structure survives the elements. The presentation is broken into three parts for easy viewing, the last section of which is the Q&A. These tips apply for greenhouses, storage buildings, livestock shelters, really anything we sell. Key Points Covered in the presentation:
Some basic principles of engineering so that the forces exerted on the buildings could be better understood.
The many components of anchoring. Anchoring prevents a structure from settling under snow load, prevents lifting under aerodynamic forces and prevents shifting with wind forces.
The similarities of an airplane wing to the shape of a structure. What happens when surfaces become bigger, wider. lower and higher.
How uneven loads can happen and how to prevent them.
The proper procedure to removing excessive snow load