130222 fire walls

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130222 fire walls

  1. 1. Sharing our Guidance The What, When, Where, and Why of Fire Walls
  2. 2. Firewalls Firewall Basics What? Types of Firewall When/Where? When to expect firewalls and Where might you find them. Why? Why do I need to know? 08/06/13 2
  3. 3. X What When Where and Why of Firewalls A “Type” of wall that helps mitigate the spread of fires and protect building occupants. Firewalls Fire Barriers Fire Partitions Smoke Barriers What are Firewalls? 08/06/13 3
  4. 4. X What When Where and Why of Firewalls Firewall A fire-resistance-rated wall which restricts the spread of fire and extends continuously from the foundation to or through the roof , with sufficient structural stability under fire conditions to allow collapse of construction on either side of the wall. 08/06/13 4
  5. 5. X What When Where and Why of Firewalls Fire Barriers A fire-resistance -rated wall assembly of materials designed to restrict the spread of fire in which continuity is maintained. Shaft Enclosures Exit Enclosures Exit passageways Atriums Incidental Use Areas 08/06/13 5
  6. 6. X What When Where and Why of Firewalls Fire Partitions A vertical assembly of materials designed to restrict the spread of fire in which openings are protected. Separation of dwelling/sleeping units within the same building. Occupancy separation 08/06/13 6
  7. 7. X What When Where and Why of Firewalls Smoke Barriers A continuous membrane, either vertical or horizontal, that is designed and constructed to resist the movement of smoke. (1) Hour Rated 08/06/13 7
  8. 8. X What When Where and Why of Firewalls Exterior Walls Mixed Use Occupancies Tenant separations Stairwells Elevator Shafts Exit Corridors Areas of Refuge for ADA Atriums Hazardous Use Groups Unfortunately it’s not all that easy to figure out. So if you see something don’t be afraid to throw out a red flag. OBC Table 705.4 – Fire Wall Ratings OBC Table 706.3.9 – Fire Barrier Assemblies between Fire Areas OBC Table 715.4 Fire Door Ratings Allowable Heights and Areas Use Groups Building locations When and Where might you find a Fire Walls, Barriers, or Partitions? 08/06/13 8
  9. 9. X What When Where and Why of Firewalls Life Safety Help you to do your job as an Engineer Correct Detail Firestop those penetrations. Fire/smoke Damper locations Cover the Architects backside Why you need to know this. 08/06/13 9
  10. 10. Firewalls CONCLUSION . . . Thank You.

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