Phase 4: Plastering Module: Roofing, Felting and lathing:

State safety procedures when roofing Apply laths and felt to a pitched roof area with hip and valley Interpret and draw sections of roof Calculate perimeters and areas of roofs Calculate areas of triangles Dispose of waste in the correct manner

Key Learning Points • • • • • • • • • • • •

Use of ladder and scaffold for working at heights Safety procedures when working on roof Set out roof using gauge and line Lapping of felt at joinings, eaves, ridge, valley and stretching felt Correct gauging, lining and nailing of laths Sections through main types of pitched roof construction Perimeters and areas of simple roof construction using known formulae Trigonometry - Sin, Cos, Tan Good housekeeping and disposal of waste (timber, felt) Team work and communication Logical job planning, division of labour and sequencing of work

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Apply slate/tiles to a pitched roof with hip and valley Fit flashing in valley Prepare, bed and point ridge tiles State the effects of air pressure and the elements on roofs Calculate and compare roofing costs

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Use of ladder and scaffold for working at heights Lead flashing properly fitted in valley Application of slates/tiles - correct lap, overhang, nailing, clipping, cutting at hip and valley Measuring and mixing sand, cement and colouring Cutting and bedding of ridge tiles Slates/tiles - range and manufacture Maintenance and repair of roofs Air pressure on flat and pitched roofs, normal loading, effects of elements on roof structures Roofing costs - materials, time and labour Good housekeeping and segregation of waste Teamwork and communications Logical job planning, division of labour and sequencing of work

Learning Outcome

Key Learning Points