Fire Wall To Roof Detail

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Fire wall to roof detail.

The roof insulation is continuously draped over the top of the wall. Corridors openings are protected may terminate at a fire rated floor ceiling roof assembly. C roof ceilings45 51 steel framed including steel bar joist framing steel c joist framing steel truss and steel roof deck. The exception is where the roof is of reinforced concrete construction and has a fire resistance of at least one hour for a two hour firewall or two hours for a four hour firewall.

I was wondering what you might think about the required detail for a head of wall joint at a fire barrier wall in the following case. Openings are permitted in fire walls and are discussed in detail in the code corner no. The code is 2009 ibc. This concern should now be alleviated.

D horizontal membrane 52 shaft wall used in a horizontal plane. The detail drawings are grouped by details and can be downloaded below in dwg or pdf format. Where the room side fire resistance rated membrane of the corridor is carried through to the underside of the floor or roof sheathing deck or slab of a fire resistance rated floor or roof above the ceiling of the corridor shall be permitted to be protected by the use of ceiling materials as required for a 1 hour fire resistance rated floor or roof system. This is somewhat of a relaxation over traditional firewall construction as in theory the roof could collapse in over an hour leading to collapse of the firewall.

Construction is type v b so there is no general requirement to rate the roof deck assembly. The project has m and s2 occupancies with some of the s2 separated with a 2hr fire barrier wall. Fire walls building separation openings are protected and limited continuous from foundation to through roof and exterior wall to through exterior wall structural stability fire barrier shafts occupancy separation openings are protected and limited continuous from floor through concealed space at each level fire partition. In the event one wall is pulled down due to fire the other wall remains intact preventing fire spread.

It utilizes two independent concrete masonry walls side by side each meeting the required fire resistance rating. The testing demonstrated that the fire will not travel to the wall s unexposed side via the vapor barrier. Firestone has developed cad drawings of its tpo installation details to assist roofing professionals with the specification of firestone tpo roofing systems. Wood framed including dimensional lumber engineered joist and truss.

6 1 typical party wall and roof applications roof details compliant battens and sarking over party wall sarking not shown for clarity compliant fire rated separating wall brick wall shown bradford fireseal party wall sealer compressed between roof tiles and top of party wall truss rafter line roof tiles figure 6 1 2.