Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.
Spans for roof deck.
A redwood 4x6 beam should span no more than 6 between supporting posts.
Average roof height between 3m and 6 5m 3m h 6 5m.
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Obviously the larger the beam the greater the distance it can span between posts.
For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.
Patio height hc must always be less than roof height h.
Maximum roof slope is 5 for monoslope and 22 5 for pitched roof.
The strength of the shape provides impressive span and overhang capabilities making it ideally suited for long open interior and exterior spaces.
For more information regarding canam steel deck please refer to the steel deck or contact our experts by phone at 1 866 466 8769 or online.
Cellular deep dek roof deck cellular deep dek is a double or triple cell hat unit with a liner panel that creates a support surface for various component systems.
Refer to the deck beam span table below to assist in determining the maximum span of a given beam between posts.