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FullSizeRender[6]Advanced Roofing – 26th – 30th November 2018. Held at Chelvey Oak Farm, Bristol.

This course will begin with a brief recap of regular hipped roofs, however, the assumption is that attendees will not be novices to traditional cut-timber roofing.

  • Introduction to the subject, including a power-point to assist with the identification of types and styles. Establishing common-place terminology also the regular names used for components.
  • The geometry, trigonometry and mathematics necessary for the calculation of lengths and angles of all of the major components. Mensuration, setting-out, marking-up, cutting and forming typical examples of a range of the more unusual roofs.  Typically each day has both theory and practice and Learners will be able to make a small example of the particular type of roof under discussion that day.
  • Pitched roofs containing dog-legged intersections on plan (e.g. over city terraces) including arrow-head diagrams and scale modelling for complex angles.
  • Flemish revival including setting out, marking up, cutting and fitting a ‘pocket’ birds-mouthed hipped rafter.
  • Irregular roofs including skew, octagonal and hexagonal ended.
  • Polygon on plan pyramidal types including star diagrams.
  • Conical roofs.
  • Hipped ends of different pitch to the main slopes including calculating and forming dihedral angles (backing bevels) where each hip has two different angles.

Learners should bring their own tools, PPE, log/trig tables or scientific calculators (or mobile phones!)

The centre provides timber, drawing instruments and paper/card.

Funding may be available for this course, so please ask us for details or email admin@oftf.org.uk

 

 

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