Ideally we should have propped up the roof and rebuilt the back wall which is leaning out and repaired the roof timbers. However, we have decided to prop the roof up so that if the back wall does fall down the roof will still be supported. This picture shows the acro-props holding up the roof.
We have tied the back wall in with five metal rods. Three of these span the full width of the building so that the front wall is helping to support the back wall. Two more rods were connected to the beams that hold up the attik floor. All rods are threaded where they protrude through the walls. A series of metal straps have been bolted to the the rods on the outside surface of the wall. We are hoping to build three buttresses to peg the bottoms of the straps in.
Large metal plates were bolted to each of the four joints in the A frames to reconnect the horizontal members of these structures to the diagonal members. This photo also shows the system used for connecting the rods to beams and also one of the four diagonal metal straps that tie the A frame diagonals in to the beams stopping them from pushing out the wall further.
