Over the last month, we have begun to assemble the frame, which will support our roof. This process involves three distinct phases, 1) Initial working on roundwood, 2) Laying-up – checking the individual members (posts, braces, beams) fit together. This takes place on the ground, ideally on a level surface, and, 3) Erection of the frame – this usually involves erecting individual bents (post and beams joined together and braced) and joining them to each other with connecting beams or rafters. These processes take time and need great skill and accuracy to achieve a strong structure. We have completed most of the first and second phases, although each phase will run until the end of the entire process.
Assembling the frame brings with it a great sense of achievement and, having spent the last four months working on the ground, it allows the structure to express its three-dimensional shape. It also allows us to begin to understand how our home will relate to its site and its environment.
We were able to erect parts of the frame with our tripod and winch system (see video). However, for the large reciprocal roofs and beams, we decided that hiring a crane would be the most efficient and cost effective method of erecting the frame. Mechanical handling of the wood means is unavoidable given its size and the demands of safety.
Another important factor was the time it would take to dismantle and re-assemble the reciprocal roofs at height.
We contacted O’Gradys, a local crane hire firm to advise us on raising some of the structure. Our plans were interrupted by Hurricane Ophelia and Storm Brian (as cranes are not tolerant of wind speeds over 40-50km/hr) but eventually the weather settled and on a bright sunny morning our crane arrived!
Erecting the frame was an exciting experience for all involved. Working with a crane enables large heavy structures to be moved quickly and smoothly around the site. It is very satisfying to witness the bents we’ve been working on being lifted and slotted into place producing a really strong structure.
We envisage working with a crane on two subsequent days to fully complete the structure.