When I’m busy with stuff like this, I clearance drill and deep countersink the add on piece, flood the joining area with exterior adhesive, offer up and use two long screws. When all’s cured I fill the countersink with car body filler, apply brown silicone where appropriate and then paint and more paint.
John
Ok so put sticks like **** on it and expanding foam underneath. What a mess! Should have cover everything with masking tape before doing it. Is it a case of just sanding this mess out?
On a positive note. It doesn't seem to want to move
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