1 Hour Fire Rated Exterior Wall Assembly Stucco

Wood structural shear panel where occurs metal lath over 1 layer of weather resistive barrier 7 8 exterior cement plaster one hour rating per ibc table 720 1 2 item 15 1 3 1 hour exterior stucco wall see footnote m for reduction of allowable f c.

1 hour fire rated exterior wall assembly stucco.

This assembly is fire rated for 1 hour from both sides. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Non combustible and available in 1 hour fire resistant rated assemblies. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

The fire rating of the wall assembly is the lower of the two. Typically for an exterior wall with a fire separation distance greater than 5 ft 1 524 mm fire needs be considered on the interior side only. Variety of finishes options. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

Finish coat can be applied in as little as 24 hours after the brown coat. Code requirements vary an addendum to the assembly allows for the use of common claddings including smartside fiber cement and t1 11 panels. Stucco acrylic stucco paint and stone are all finish options. 2 x 4 wood framing at 16 o c.

2009 irc requires walls built within 5 of a property line or within 5 of another building on the same property to have a 1 hour fire resistance rating with fire exposure from the exterior of the building note. 7 8 exterior cement plaster at exterior condition min. Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system. This ul listed assembly is commonly used in type v multifamily construction in load bearing exterior walls.

Only requires one base coat application.