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Planning & Constructing Agricultural Structures

Planning & Constructing Agricultural Structures. Woodworking. Objective. To plan and construct agricultural structures. Introduction. Buildings are an important business asset In agricultural business we use buildings to Protect machinery Store crops Keep animals and animal products

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Planning & Constructing Agricultural Structures

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  1. Planning & Constructing Agricultural Structures Woodworking

  2. Objective • To plan and construct agricultural structures.

  3. Introduction • Buildings are an important business asset • In agricultural business we use buildings to • Protect machinery • Store crops • Keep animals and animal products • Milking cows • Selling commodities • Processing crops and animal products • Manufacturing commodities

  4. Planning Agricultural Buildings • Saves time and money • Requires careful consideration • Building size, type, design and placement are also important • Inadequate buildings result in LOSS

  5. Farmstead Layout and Building Site Selection

  6. Farmstead Layout and Building Site Selection

  7. Farmstead Layout and Building Site Selection

  8. Building Use and Size • Some are large, specialized and expensive • Also require professional planning • Others can be adequately planned by the business owner or manager

  9. Building Types and Shapes • Type and shape determine ease of building and cost • Each type has its place and use

  10. Types of Trusses • Past buildings were limited in width without interior post due to the limited strength of rafters and girders • Rafter- a single timber that supports a section of roof • Girder-a timber that carries the weight of floors and interior walls • Truss-a rigid framework capable of spanning over 100 ft without posts • See fig 39-10 p. 564

  11. Types of Construction • How buildings are classified Pole Building Post-frame Building Rigid-frame building

  12. Types of Coverings • Steel • Aluminum • Wood

  13. Building Materials: Lumber • Comes in standard sizes from 1” to 6” thick and from 2” to 12” wide • Lengths typically run from 6’ to 16’ and longer • It is important to remember that thickness and width are nominal dimensions and that when lumber is dressed or planed the actual thickness is ¼” less than nominal thickness and the width is ½” less than nominal width

  14. Plywood • Made of veneer • Used for subflooring, wall sheathing, roof sheathing • Graded according to the quality of the exterior layers as well as the glues ability to withstand moisture

  15. Plywood Grades

  16. Pressure-Treated Lumber • Done to keep wood from rotting due to exposure to Earth and weather & also to prevent insect damage. • Chemicals are driven into the wood under pressure • General chemicals used are • Creosote • Pentachlorophenol • Acid copper chromate (ACC) • Ammoniacal copper arsenate (ACA) • Chromated copper arsenate (CCA)

  17. Roofing and Siding • Steel & aluminum used extensively • Steel • Stronger • Subject to rust • Galvanized or coated with zinc • Aluminum • Won’t rust • Expensive • Thin • Easily damaged

  18. Assignment • Draw a “block sketch” of a farmstead • See example.

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