Sub-sill
& Reveal Fixing- Sub-sill: Series 463 windows come with integrated sub-sill fitted as standard.
• The sub-sill is a secondary line of defence and is fitted with PVC front flap, covering the drainage holes.
• Has built in nailing fin to allow timber reveals to be fixed to sub-sill.
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Stop-ended. To complement the sub-sill installation we have also designed injection moulded nylon end caps that nest into the frame and sub-sill.
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Reveal Fixing. On wide window frames (102mm) it's desirable to get a second line of reveal fixings to keep the reveal tight up to the frame. Series 463 has a snap-in filler that allow us to secretly apply a second line of fixings as shown below.
Sub-sill
end cap
Timber
reveal
Double
fixing feature