unit 207 carry out first fix flooring and roofing

Level 2 site carpentry unit 207 carry out first fix flooring and roofing power point 2

1. PowerPoint presentation Roofing Unit 207: Carry out first fix flooring and roofing

2. Types of roofs Pitched roof Flat roof

3. Common roof types Most roofs are constructed in one of two ways: traditional cut roof roof trusses.

4. Single and double roofs A pitched roof can either be a single roof or a double roof. A double roof with a larger span requires support for the rafters, which are called purlins. Single roof Double roof

5. Types of roofs

6. Popular trussed rafter profiles Images courtesy of Trussed Rafter Association; www.tra.org.uk . Reproduced with permission. King post truss Fan truss Attic or ‘room in the roof’ truss W or fink truss

7. Images courtesy of Trussed Rafter Association; www.tra.org.uk . Reproduced with permission. Erection of common trussed rafters

8. Types of truss clips

9. Truss straps Restraint straps fixed at maximum 2.0m from the centre. Truss rafter fixed to wall plate

10. Any questions?