Sash wedge issue

Sash wedge issue

Sash wedge issue

I installed a sash wedge on the top of the casement frame for side hung window to pull the sash in (it's out by approx 4mm). It's pulled it in approx 2mm but there is still a gap. How do I bring it some more ? do I need a bigger wedge ? or maybe a sash riser ?

by omph

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