Span Of The Roof

Span roof definition a roof having two slopes of equal breadth and pitch meeting at a common ridge.

Span of the roof.

The average lifespan of a roof can be affected by the slope of your home the climate where you live and the quality of material installed among other things. So this table could accommodate a house with a total rafter span or house width of 32 feet. More importantly the lifespan of a shingle roof is greatly affected by the overall materials used. The average lifespan of asphalt shingles ranges from 20 to 40 years depending on the manufacturer although many warranties only guarantee between 15 and 25 years.

Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. The average lifespan of your roof depends on the type of roofing material you have installed. The average lifespan of a shingle roof is based on a number of factors.

Shingle roofs tend to have a shorter lifespan than other options such as tile.