Recent content by Andrew Lyons

It will sit just above floor level but will take the load of the existing purlin as there will be a 2m wide dormer mid-span which basically cuts through the existing purlin and the existing props are being removed too. The front face of the new dormer sits over the new purlin beam.

Hi, The Purlin beams also take the floor loading with the joists running perpendicular to the ridge. The joist are 194x47 and are within the span tables I have found. I am not questioning whether they meet the actual structural requirements but more concerned about living with it and any...

Hi, Has anyone got any experience in relation to sizing steelwork for a loft conversion. I engaged a Structural Engineer to design the steelwork and timbers form my loft conversion. He has come back specifying a 152x152 23 Universal Column for ridge and purlin beams. The maximum clear span is...