Roof styles - PowerPoint PPT Presentation

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  1. Roof styles Origins- Bischoff 2012

  2. Parts of a roof (gable roof shown)

  3. Rafter layout (gable roof shown) • Common rafters are used in most roof applications • Each roof style is going to have different rafter layouts

  4. Rafter layout • Cutting individual rafters requires you know a few different dimensions • Rise and run (pitch)

  5. Gable Roof • Most popular style • Two roof surfaces that are the same size and pitch • Forms a triangle at the end of the building Front Gable Side gable Cross gable

  6. Gable Roof

  7. Hip Roof • Another very common style • No vertical sides on roof sections • Good for homes in high winds or hurricane areas • Less internal attic space Hip roof Cross hipped roof Pyramid hip roof

  8. Hip Roof

  9. Mansard Roof • Popularized by French architect Francois Mansart in 1600’s • Roof has two different slopes on each side • Lots of extra attic space • Popular in the USA in the 1800’s Victorian style houses

  10. Gambrel Roof (Barn Roof) • Similar to Mansard with two angles on each side • Symmetrical on front and back sides

  11. Saltbox Roof • Similar to a Gable roof, but not symmetrical • Originated as a way to add space but save on materials

  12. Flat Roof • Not actually flat, but a very low slope (sometimes only ¼” on 12” pitch) to drain water away • More economical to build- uses less material • Not recommended for areas that receive lots of rain or snow

  13. Shed Roof • Usually a single roof section that slopes the entire length of the building • Sometimes called a “lean-to” • Often used as a home addition or for porches

  14. Dutch Gable Roof • A mixture between a hip roof and a gable roof • Adds architectural interest • Can also add attic space

  15. Half Hip Roof • Starts out as a gable roof, but the top of the gable is clipped and made into a hip • Sometimes called “Clipped Gable”, “Jerkin Head” or “Dutch Hip” roof

  16. Turret Roof • Necessitated from a round or octagonal building structure

  17. Geodesic Dome • A sphere or half sphere formed out of triangles • Popularized after R. Buckminster Fuller developed the mathematics to understand the structure in 1954