203-INST-UK-001 v1.0
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02 Aug 2022
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Page 18 of 21
Step 8
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Place the Jamb Aprons in Position
Place the jamb aprons in position (use the roofing underlay supplied as part of the flashing kit if specified, otherwise use roofing
underlay of at least 1 m in width). The aprons should be at least 150 mm longer than the external span of the product.
The bottom edge of each apron should lap over the cills on both side of the Pitchridge flashing and should align with the bottom
edge of the product cills. The aprons may be tacked in position to the rafters/counter-battens below.
Figure 10a
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Jamb aprons positioned
Figure 10b
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Jamb apron adhered to butyl tape
Length of jamb apron
should be one
continues strip, this is
to ensure full
weathering
Bottom edge of jamb
apron to align with cill
edge of product and
overlap cill flashing
Jamb apron folded
around gutter lip
Approx. 1 m wide
