I remember about 40 years ago a builder pitched a roof on a new house and left out the purlins the roof spread pushed out the walls and the roof came to rest on the cold water tank and didn't go any further. What I am going to do is follow what WARose suggested.
I am looking for some help please on a project I am working on.
At the moment I have 2 No 254 x 146 x 43 UB's running parallel with a clear span of 5.7m. The sections have friction fit 140 x 90 x 10mm unequal angles @ 750mm centres between, welded to one beam (B) and are bolted together with 2...