What is the difference between fire stopping and fire blocking?
Fire stopping is the containment of fire or smoke through rated assemblies by the application of tested fire-rated assemblies. In combustible construction, fire blocking shall be installed to cut off concealed draft openings (both vertical and horizontal) and shall form an effective barrier between floors, between a top story and a roof or attic space.

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1. When is a Design Professional required for my project?
2. When is a State Construction Design Release (CDR) required?
3. What is a Class I structure?
4. Where do I go to apply for a Building Permit?
5. How long does a typical plan review take?
6. If I am remodeling an apartment building with 3 or more units, is the building classified as Residential?
7. What is Fire-Resistance-Rated Construction?
8. Is a fire wall the same as a fire barrier?
9. What is the difference between fire stopping and fire blocking?
10. What is meant by "a change of use or occupancy" and when does it apply?
11. When is a Knox Box (key box) required?
12. Where can I purchase a Knox Box?
13. When is a Design Professional required for my project?
14. When is a State Construction Design Release (CDR) required?