Robinsons Redoubtable Assembly Instructions Manual page 38

 End finials need to be pinched onto ridge using 'DV282' grub screws.
 Depending on your ridge length a half cresting may need to be cut or/
and some spacer bar 'DV281' cut into two equal sections.
 Each finial and cresting piece needs to be siliconed 'D119' into place.
CUT
6mm
D119
DV282 DV281
ROCREALU
ROFINALU
DV281
EQUAL
38