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HOW TO FIT PITCHED ROOF LANTERN
Check that the kerb is square by measuring equal distances from corner to corner, (see Figure 1).
Remove the ringbeam flaps from the ringbeam.
Lift the ringbeam onto the top of the kerbs. Make sure the ringbeam is sealed to the kerb base.
Slide the ringbeam bracket into the channel on the adjoining ringbeam and push together. Fix the ringbeam screws into predrilled holes.
Prior to inserting ringbeam flaps, fix ringbeam into kerb at approx 500mm centres.
Lift the ringbeam flaps into place. Make sure the ringbeam flap engages into the correct position.
On a hidden tiebar push the steel bracket into the side of the central rafters.
Loosen the pre-fixed top screw to allow the top bracket to move freely.
Engage the rafter bracket into the slot provided on the ridge.
Screw down the top screw to secure the rafter bracket. Place the rafter bracket into the slot on the ridge opposite.
Slide the adjacent rafter over the steel angled bracket.
Locate into position with the top rafter bracket and tighten the screw.
Slide the bell rafter over the pre-fixed ridge bracket.
Tighten pre-fixed screw to secure the bell rafter.
Fix the gusset cover over the hidden tie bar. Secure with screw.
Fix the gusset with screws provided and cover with screw caps.
Where there is no hidden tie bar position the bracket into the slot on the ridge and fix rafter with screw.
Loosen off the top hip bracket screw and position into the slot provided.
Fix the next hip and secure screw at top. (See page 6 & 7 for contemporary lantern hip installation)
Jack rafters are located into a slot with a bracket and top screw.
Rotate the ringbeam flaps keeping them tight against the hip rafter cut.
Fix each side of the hip glazing seat into the ringbeam flaps.
Before fixing the central and jack rafters at the bottom, temporary fit foam boards against flap to correctly space rafter positions.
Once the rafters are in position pull the ringbeam flap up tight to the rafter and fix centrally with a screw.
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