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Expansion Joints for Bldgs Using Wood Sheathing

Expansion Joints for Bldgs Using Wood Sheathing

Expansion Joints for Bldgs Using Wood Sheathing

(OP)
All,

Can anyone tell me their experienced for locating expansion joints for buildings according to Expansion joints in Buildings: Technical Report No. 65.  I have a one story load bearing masonry building (70'x375') with CFS trusses 2' o/c, sheathed with plywood and covered by asphalt shingles.  The building is located in the mid-west with the seismic design category = B and wind speed is 90 mph.  The masonry has CJ spacing is at 20' - 30' o/c and the 4x8 roof plywood is installed with a 1/8" gap around all sides w/ clips.  I'm thinking that an expansion joint is unnecessary for my situation because the materials are not continuous like a metal deck.  Any thoughts?

TIA

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