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LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION. LIGHTWEIGHT CONSTRUCTION. LIGHTWEIGHT CONSTRUCTION. PROGRAM OBJECTIVES: — Recognize lightweight construction — Identify the dangers of lightweight construction — Describe techniques of ventilating light- weight construction. LIGHTWEIGHT CONSTRUCTION.

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LIGHTWEIGHT CONSTRUCTION

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  1. LIGHTWEIGHT CONSTRUCTION

  2. LIGHTWEIGHT CONSTRUCTION

  3. LIGHTWEIGHT CONSTRUCTION • PROGRAM OBJECTIVES: — Recognize lightweight construction — Identify the dangers of lightweight construction — Describe techniques of ventilating light- weight construction

  4. LIGHTWEIGHT CONSTRUCTION • CONVENTIONAL CONSTRUCTION: Conventional construction utilizes structural members that depend on size for strength. The greater the span for a structural member the larger it has to be to support a given load.

  5. LIGHTWEIGHT CONSTRUCTION

  6. LIGHTWEIGHT CONSTRUCTION • DEFINITION: Lightweight construction does not derive its strength from size. Is obtained from multiple members that are in compression and tension. Additionally, the strength of the individual structural member is dependent on the sum total of the other members; thus, if one member fails, other members may fail.

  7. LIGHTWEIGHT CONSTRUCTION

  8. LIGHTWEIGHT CONSTRUCTION

  9. LIGHTWEIGHT CONSTRUCTION • SIZE-UP Preplanning - Your district Onscene - Walk around structure sizing up old/new construction methods and, determine strengths and hazards by undressing the building in your mind

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  12. STRATEGY: Life Safety Incident Stabilization Property Conservation TACTICS Search and Rescue Ventilation Fire Attack Forcible Entry Salvage etc... LIGHTWEIGHT CONSTRUCTIONPLAN: Strategy and Tactics

  13. LIGHTWEIGHT CONSTRUCTION • IMPLEMENTATION

  14. DWELLINGS Structures constructed in the last 20 years 2x4-inch rafter tails under the eaves COMMERCIALS Concrete tilt-up walls Fascias or “new style” buildings Flat roofs Buildings constructed in the last 20 years LIGHTWEIGHT CONSTRUCTIONINDICATORS

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  16. LIGHTWEIGHT CONSTRUCTION • STRUCTURAL MEMBERS USED IN LIGHTWEIGHT CONSTRUCTION: — Lightweight Beams — Wood Trusses — Metal Trusses — Flooring — Other

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