-
Welcome to The Building Code Forum
Your premier resource for building code knowledge.
This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.
Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.
Ready to upgrade? Log in and upgrade now.
2 hour fire barrier
- Thread starter jtom
- Start date
mark handler
SAWHORSE
I have always required the taping but:
Gypsum Association GA-600-09
Unless otherwise specified, the face layers of all systems, except those with predecorated or metal covered surfaces, shall have joints taped (minimum Level 1 as specified in GA-214, Recommended Levels of Gypsum Board Finish) and fastener heads treated. Base layers in multi-layer systems shall not be required to have joints or fasteners taped or covered with joint compound. [joints] ...not be taped and fasteners need not be covered when all of the following conditions are met.
a. The ceiling is part of a fire-resistance rated floor-ceiling or roof-ceiling system;
b. All vertical joints occur over framing members;
c. Horizontal joints are either staggered 24 inches o.c. on opposite sides of the partition, or are covered with strips of gypsum board not less than 6 inches wide; or the partition is a twolayer system with joints staggered 16 inches or 24 inches o.c.; and
d. The partition is not part of a smoke or sound control system.
https://law.resource.org/pub/us/code/bsc.ca.gov/sibr/org.gypsum.GA-600-09.pdf
Gypsum Association GA-600-09
Unless otherwise specified, the face layers of all systems, except those with predecorated or metal covered surfaces, shall have joints taped (minimum Level 1 as specified in GA-214, Recommended Levels of Gypsum Board Finish) and fastener heads treated. Base layers in multi-layer systems shall not be required to have joints or fasteners taped or covered with joint compound. [joints] ...not be taped and fasteners need not be covered when all of the following conditions are met.
a. The ceiling is part of a fire-resistance rated floor-ceiling or roof-ceiling system;
b. All vertical joints occur over framing members;
c. Horizontal joints are either staggered 24 inches o.c. on opposite sides of the partition, or are covered with strips of gypsum board not less than 6 inches wide; or the partition is a twolayer system with joints staggered 16 inches or 24 inches o.c.; and
d. The partition is not part of a smoke or sound control system.
https://law.resource.org/pub/us/code/bsc.ca.gov/sibr/org.gypsum.GA-600-09.pdf