Rafters usually span from the apex of the ridge to a connection on the wall plate and are designed to support the roofing material – slate, tiles, shingles etc. When a roof has hips, some of the rafters are shortened to land on the hip rafter – these are called jack rafters. They can either be designed to attach into the side of the hip rafter, or to connect to an opposing pair on top of the hip rafter.
Either way you are going to have to get your calculator out, dust it down and remember how to operate the trigonometry functions.
If only I’d paid more attention in maths lessons at school all those years ago. I didn’t realise that it was actually going to be useful for something one day!
Check out these douglas fir hip rafters on our new cartshed.Jowl Post. Sin Comentarios
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