roofing terminology

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Across
  1. 3. roof which has an intermediate support to the underside of the common rafter in the form of a purlin
  2. 6. term given to roof with rafters are fixed at the top and the bottom and have no intermediate support
  3. 9. wedge shaped piece of timber that is fixed at the bottom of the rafter to reduce the roof angle
  4. 10. horizontal distance between the wall supports
  5. 11. horizontal component fixed to the top of the wall plate to prevent spread of rafters and provides fixing for the ceiling
  6. 13. the lowest overhanging part of a sloping roof
  7. 15. prefabricated unit used to house ventilation units or flues on a pitched roof
  8. 17. the angle of the roof measured between the surface of the rafter and the underside of the joist measured in degrees
  9. 20. the bottom section of a roof which is formed at a shallower angle to assist in rain runoff
  10. 22. a triangular section of timber fixed at the bottom of the rafter to tilt the surface less steeply
  11. 23. the edge of a sloping roof where it extends beyond the gable
  12. 24. uppermost part of a wall that extends above roof level and provides some protection to the roof
  13. 25. vertical height of the roof
Down
  1. 1. fixed at right angles to the rafter or joist and provides a fixing for structural components
  2. 2. a sloping supporting timber, that runs from the ridge of the roof to its edge
  3. 4. the underside of a roof overhang
  4. 5. board horizontal timber component that provided a fixing for the top of rafter
  5. 7. the triangular part of the end wall of a building with a sloping roof
  6. 8. the structural link between trusses and gable that will overhang the wall and provide a finish to the top of the gable
  7. 12. the flat horizontal board which closes the end of the rafters and can form a fixing for the gutter
  8. 14. sloping supporting timber from the side of a hip to the edge of the roof
  9. 16. horizontal structural member placed along the top of a wall to support the end of beams, joists or trusses
  10. 18. sloping supporting timber forming the external corner of a roof from ridge to the edge
  11. 19. sloping supporting timber that forms the internal corner of the roof
  12. 21. sloping supporting timber that runs from the side of the valley rafter to the ridge