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Line 36: Commonly used roof pitches were given names such as: * Greek: the ridge height is {{frac\|1/\|9}} to {{frac\|1~~/7th~~\|7}} the span (an angle of 12.5° to 16°); * Roman: the ridge height is {{frac\|2~~/9ths~~\|9}} to {{frac\|1/\|3}} the span (an angle of 24° to 34°); * Common: the rafter length is {{frac\|3/\|4}} the span (about 48°); * Gothic: the rafters equal the span (60°); and * Elizabethan: the rafters are longer than the span (more than 60°).<ref name="Knight" />

Roof pitch: Difference between revisions