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Construction Technologies

CON3050 Roof Structures 2

Advanced · 1 credit · TMT - Trades, Manufacturing and Transportation

Description
Students develop basic competencies in laying out, cutting and assembling common, hip and valley rafters in relation to specialized structures and coverings.
Prerequisite
CON2050: Roof Structures 1
Parameters
Access to a building site and/or construction facility and to instruction from an individual with formal, specialized training in carpentry.

Outcomes The student will:

  • 1 identify and describe the design features of intersecting sloped roofs

    • 1.1 describe roof types and terminology

    • 1.2 explain the purpose of a roof overhang

    • 1.3 explain how roof dormers and Dutch gables are built

    • 1.4 investigate and describe alternate roof coverings including:

      • 1.4.1 wood shakes

      • 1.4.2 metal shingles

      • 1.4.3 clay tiles

  • 2 calculate the length of rafters, using ratio and proportion techniques

    • 2.1 explain how roof slopes are described and calculated

    • 2.2 from a set of drawings and specifications, calculate the:

      • 2.2.1 roof slope

      • 2.2.2 amount of overhang

      • 2.2.3 length of hip, valley and related jack rafters

    • 2.3 describe three methods of determining the length of a common rafter

  • 3 lay out, cut and assemble a set of rafters for a roof assembly

    • 3.1 sketch a rafter plan for a hip and valley roof system

    • 3.2 describe the types of cuts and features of a:

      • 3.2.1 common rafter

      • 3.2.2 hip rafter and valley rafter

      • 3.2.3 hip rafter and valley jack rafter

    • 3.3 lay out a rafter pattern for a given slope and type of rafter

    • 3.4 prepare and check the condition of required ladders and scaffolding

    • 3.5 create a work schedule and material list

    • 3.6 for a given roof section, use the appropriate tools, materials and techniques to:

      • 3.6.1 lay out the required patterns

      • 3.6.2 cut the appropriate rafters to size

      • 3.6.3 assemble and fasten

      • 3.6.4 sheath and apply a sample of one or more alternative roof coverings

    • 3.7 estimate the cost of at least one alternative roof covering

  • 4 demonstrate basic competencies

    • 4.1 demonstrate fundamental skills to:

      • 4.1.1 communicate

      • 4.1.2 manage information

      • 4.1.3 use numbers

      • 4.1.4 think and solve problems

    • 4.2 demonstrate personal management skills to:

      • 4.2.1 demonstrate positive attitudes and behaviours

      • 4.2.2 be responsible

      • 4.2.3 be adaptable

      • 4.2.4 learn continuously

      • 4.2.5 work safely

    • 4.3 demonstrate teamwork skills to:

      • 4.3.1 work with others

      • 4.3.2 participate in projects and tasks

  • 5 create a transitional strategy to accommodate personal changes and build personal values

    • 5.1 identify short-term and long-term goals

    • 5.2 identify steps to achieve goals

Program of Studies 2010. Source document, © Alberta Education.