1 Hour Fire Rated Wall Metal Building

Panel is tested by blasting with a flame for one hour followed by a blasting from a fire hose.

1 hour fire rated wall metal building.

The testing demonstrated that the fire will not travel to the wall s unexposed side via the vapor barrier. Elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. Install 5 8 inch type c drywall on the interior surface and 1 2 inch gypsum sheathing on the exterior. Finish the wall with a 1 inch coat of portland cement gypsum plaster.

The wall must then remain intact. The new fire resistance rated non load bearing metal building interior wall assembly will be acceptable where one or two hour ratings are required by building codes. A brick wall is held together with mortar which is less effective. As with the fire rated columns mbma considers this a breakthrough in fire protection research of great importance to the designers and users of eco nomical light steel frame buildings.

This bulletin was previously released as insurance bulletin 16. Depending on the construction and thickness of the wall a brick wall can achieve a 1 hour to 4 hour fire resistance rating. According to the engineered wood association a one hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures and support its full load for at least one hour after the fire begins. Continued on next page note.

Fire 1 hour rated exterior wall and interior partition panels are factory assembled from a unique combination of tried and true cladding components resulting in a building composite that delivers superior performance in all categories compared with mineral wool core sandwich panels. The roof insulation is continuously draped over the top of the wall. One hour fire rated panels have a mineral wool core covered by mechanically fastened type x gypsum board to steel studs. The wall ratings are applicable with 1 hour rated gypsum board and steel stud wall assembly in any u400 or v400 series design.

Sagan ul w447 is a result of applying previous testing for an exterior wall assembly to a new interior wall assembly. Nevertheless brick is commonly cited as among the best building materials for fire protection. Build a two hour exterior wall with steel studs rather than wood and special metal stud fiberglass insulation between the studs. Fire 1 hour rated walls are designed to match all standard awip facing panels and finishes so you won t have.

U489 bearing wall rating 1 1 and 2 hr.