Elements and Performance Criteria
- Assess plans and specifications for size, span and spacing of structural members required in ceiling and roof framing.
- Access is obtained to relevant plans, specifications and documentation related to structural members required in ceiling and roof framing for required building categories.
- Specified timber species and stress grading are identified.
- True length of common rafter and overhand and economical size of common rafter are determined to support specified roof structure and covering.
- Maximum span of common rafter is determined.
- Position, location and direction of struts and strutting beams to support roof and ceiling loads are determined and documented.
- Method of support at hip and valley rafters is determined and documented.
- Location, direction and span of ceiling joists and hanging beams to support specified roof design are determined and documented.
- Nominated member sizes, spans, spacings and locations are listed, documented and checked for accuracy against plans and specifications.
- Assess plans and specifications for permanent wind bracing requirements for nominated design gust wind speeds.
- Access is obtained to relevant plans, specifications and documentation for assessment of timber-framed designs.
- Location and category of building site is identified against design gust wind speed calculations.
- Wind directions are selected and noted on plans.
- Type and number of bracing units for each wind direction are selected.
- Bracing details and description are documented, based upon calculations.
- Assess plans and specifications for size, span and spacings of structural members for timber wall frames.
- Access is obtained to relevant plans, specifications and documentation.
- Specified timber species and stress grading are identified.
- Roof load width for walls supporting ceiling and roof structures for a specified roof covering is determined.
- Economical size for common wall studs is determined.
- Size of top and bottom wall plates is determined according to load bearing conditions.
- Size of studs at side window and door opening is determined.
- Size of lintels to nominated openings is determined.
- Size of timber posts and beams supporting overhands is determined.
- Nominated member sizes, spans, spacings and locations are identified, listed, documented and checked against plans and specifications for accuracy.
- Assess plans and specifications for size, span and spacing of structural members for timber stumps, floor bearers and joists.
- Access is obtained to relevant plans, specifications and documentation.
- Specified timber species and stress grading are identified.
- Economical size for floor bearer and joist to suit maximum spans and spacings is determined.
- Size of timber stumps and footing type and size required to support structural members are determined.
- Size for timber trimmers, working and trimming joists for stair opening to suit maximum spans and spacings is determined.
- Location, direction and span of bearers and joists to support specified structure are determined.
- Nominated member sizes, spans, spacings, direction and bracings are identified, listed, documented and checked for accuracy against plans and specifications.