2 Hour Rated Exterior Wall at Exterior

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2 Hour Rated Exterior Wall. Openings in exterior walls in adjacent stories shall be separated vertically to protect against fire spread on the exterior of the buildings where the openings are within 5 feet (1524 mm) of each other horizontally and the opening in the lower story is not a protected opening with a fire protection rating of not less than 3 / 4 hour. Hr and 2 hr ratings are as follows:

2Hour Exterior Wall WoodWorks
2Hour Exterior Wall WoodWorks from www.woodworks.org

Interior walls (wallboard protection both sides of wall) rating number of layers and thickness of boards in each layer percent of design load 45 min. S tuds to be cut 3/4 in less than the assembly height and installed with a 1/2. * 1 layer, ½ in.

2Hour Exterior Wall WoodWorks

Check the markings on the. Rating for both interior and exterior exposure is only required when the wall has a fire separation distance of less than 5 feet. Your 2 hour rated exterior wall pictures 1600x1200 full hd images are ready. Make sure the drywall is approved under astm standard e 119;