Patent ID: 11896859
Assignee: CEMCO, LLC
Field: Civil engineering (Other fields)
Classification: CPC A  E | IPC A  E

Claim 0:
1. A fire-rated wall assembly comprising:
an overhead structure;
a plurality of vertical wall studs;
a track for receiving the plurality of vertical wall studs, the track connected to the overhead structure, the track comprising a web, a first flange and a second flange, the first and second flanges extending in the same direction from opposite edges of the web to form a U-shape;
a wallboard supported by the plurality of vertical wall studs, wherein the plurality of vertical wall studs are movable relative to the track, wherein the wallboard is spaced apart from the overhead structure to define a deflection gap between an upper edge of the wallboard and the overhead structure; and
a fire block strip extending along the deflection gap and configured to block the passage of fire and smoke through the deflection gap, the fire block strip comprising:
an intumescent material portion;
a foam material portion; and
an adhesive layer;

wherein a first portion of the fire block strip is positioned between the first flange and the wallboard and attached to the first flange by the adhesive layer, and a second portion of the fire block strip is bent at an angle with respect to the first portion and contacts the overhead structure to seal the deflection gap, wherein the intumescent material portion, the foam material portion, and the adhesive layer form an integrated structure.