Roof styles Origins- Bischoff 2012

Parts of a roof (gable roof shown)

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

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

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

Gable Roof

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 Pyramid hip roof Cross hipped roof

Hip Roof

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

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

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

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

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

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

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

Turret Roof Necessitated from a round or octagonal building structure

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