Roof construction

1. Roofs

2. Flat Roofs

3. Flat Roofs
 Flat roofs are not totally flat, they have a fall to allow
the water to run of them.
 Flat roofs can have a bitumen felt or a proprietary
weathering finish.
 Commonly used on garages and house extensions.

4. Trussed Roof

5. Truss

6. Trussed Roofs
 Commonly used in house building.
 Commonly finished with slates, concrete or clay tiles.
 Engineered from timber in a factory to allow for the
loads from the tiles and adverse weather.

7. Gable End

8. Gable
 A gable is the triangular shaped area at the end of a
roof.

9. Hipped Roof

10. Hipped Roof
 A hipped roof can have one or more hipped ends.
 Hipped roofs can be made with preformed trusses or
using hand cut traditional methods.
 Hipped roofs are more expensive to build.

11. Eaves Section of a Trussed Roof

12. Eaves
 Eaves are at the top of the wall where the guttering
is.
 Usually it projects past the line of the wall to give
weathering protection to the top of the wall.

13. Ridge Detail

14. Ridge Detail
 A ridge is at the very top of the roof.
 It forms a weathering cover where the two roof
surfaces come together.

15. Activity
 Sketch and annotate a flat roof.
 Sketch and annotate a truss.
 Explain why gable ladders are used.
 Name five parts of a hipped roof.
 Sketch a facia and sofit detail.
 Sketch a ridge detail showing concrete tiles and
ridges.