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Shake Exposure for Cedar Shake Install

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July 26, 2022 at 11:42 a.m.

AliceReynolds

Hello. I'm installing cedar shakes ( 18" x 3/4, heavy resaws ) on a house that has a section with a 3.5 slope shed roof (22' x 14'). The application instructions recommend exposure of 7.5" for a 4:12 or steeper slope roof. What would you recommend the shake exposure to be for the 3.5" section?

Thanks for your help, Kirk

July 26, 2022 at 11:42 a.m.

AliceReynolds

Below is what our roofing expert John Stout from Go Roof Tune Up had to say in response to your question:

The Cedar Shake and Shingle Bureau Manual shows a detail for Shake Roof on low pitch (less than 4:12). The Detail shows a lattice built over a BUR or another Approved Roof System with shakes installed on the lattice in normal fashion. (see Attached)

Local Code and Building Departments have expectations of Contractors following the Code. It may save some time to check with the local Building Department they may have some acceptable alternatives. This is especially true when the low pitch area is less than 10% of the total roof area.

We hope this information helps,

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July 26, 2022 at 11:46 a.m.

AliceReynolds