Lets

Buil

dA Gable Roof

Created by the:-

Carpentry & Joinery Section

Granville & Chullora Technical College

Plan View Gable Roof Construction

This is a plan view of a gable roof.

To build this roof certain stages must happen to successfully complete correctly and safely.

Plan View Gable Roof Construction

1. The bases or top plate dimensions are 3.0m X 4.0m

2. Measure from the centre of the top plates out at 450 centers.

3. Mark ceiling joists and rafters on the top plate.

4000 mm

3000

mm

Center line

Center line

Center

lineC

enter line

Plan View Gable Roof Construction

1. Place ceiling joists in position & fix down. This protects you or your mate from falling off of ceiling frame because of racking.

2. Place ceiling trimmers in position & fix

Plan View Gable Roof Construction

1. Place hanger beam in position but don’t forget to brace & plum the hanger before you fix the ceiling joists to it.

2. A plank next to the hanger will help you in fixing the hanger safely.

Brace for hanger

1. Measure and cut ridge beam & place on top of the hanger beam.

2. Cut pattern rafter & use it to cut common rafters.

3. Fix centering rafters into position and lift ridge beam into place.

1. Plum rafters & brace ridge. This brace also stops wind load from pushing the finished roof over. It must conform with the B.C.A.

2. Place common rafters into position & fix.

1. Place pitching plate into position then outriggers will sit on top and support the barge rafter.

2. The outriggers must conform with the B.C.A in the sense that the counter lever is 2/3 inside and 1/3 outside the pitching plate.

1/3 2/3

1. Brace roof using hoop iron or speed brace material & once again it must conform with the B.C.A.

2. Place Painted fascia & painted barge board to finish the work.

Don’t forget the bell cast for roof material

Gable RoofGable Roof Safety first Safety first ( you are working at height)( you are working at height)

Don’t cut any timber that is paintedDon’t cut any timber that is painted

Use triple grips & screws for fixing.Use triple grips & screws for fixing.

Efficiency in building will make the task Efficiency in building will make the task easier.easier.

Clean up at the end of the day must be Clean up at the end of the day must be done safely & correctly done safely & correctly

When in doubt ask the teacher !!!!!!!When in doubt ask the teacher !!!!!!!