With a conventional pitched roof, the truss is usually symmetrical with the principal rafters meeting at the apex of the triangle above the centre line of the tie beam at a height determined by the pitch.
A mono pitch or “lean to” style roof requires a different solution – a half truss, where the principal rafter still needs to be supported by a post and strut or queen post.
These ones are heading off across the water to the Isle of Wight in a few days.
If you're considering an oak framed building (or larch, or douglas fir), let's talk. We'll gladly put together an outline quote (completely free, with no strings attached). And we need very little information from you to do so.
Equally, we're always here, at the end of the phone, to talk through your ideas.