1 Hr Rated Exterior Wall Assembly

This assembly is commonly used in 1 hour exterior walls along the property line including single-family construction.

1 hr rated exterior wall assembly. Thick 100 2 hours 3 layers 12 in. This UL Assembly is designed specifically as a 1-hour rating using ZIP System R-sheathing. 1-HOUR FIRE-RESISTANCE RATED EXTERIOR WALL ASSEMBLY.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Table 1 One-Hour Fire-Rated Loadbearing Wood-Frame Wall Assemblies. 2x4 16 oc.

EWS0015 insulated with up to 4 inches of high density closed cell spray foam. It can be constructed with a brick veneer stone veneer terracotta cladding and stucco. The exterior walls on both sides of the fire wall shall have a 1-hour fire-resistance rating with 3 4-hour protection where opening protection is required by Section 7058.

Dwelling unit and sleeping unit separations in buildings of Type IIB IIIB and VB construction shall have fireresistance ratings of not less than 1 2hour in buildings equipped. 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. Deep spaced a max of 24 in.

For details refer to ESR Report 4244. Click the link above each design number below represents a James Hardie 1 hour Fire Resistive Wall Assembly. One layer 5 8 inch type X gypsum wallboard or water resistant backer board or veneer base applied parallel with or at right angles to studs fastened with GWB-54 nails at 8 inches oc.

A typical one-hour wall as shown in U305 is the start point for achieving a rated wall when required at say closer than 3 to the property line or a one-hour rated exterior wall bearing assembly. OK there are also interior one-hour rated walls but in this case the brick veneer tells me its probably exterior. 2 layers 58 in.