English to Spanish Tech/Engineering Architecture buiding with SIPs (paneles estructurales aislantes)

Hello again!! Can someone tell me what a cap corner is in Spanish? This text is about attaching a wood siding to a SIP (Structural insulated panel).
It goes like this:
Another piece of insurance when attaching wood siding is to use a "cap corner" detail to provide a solid nail base at the corners.
I suppose it is something like a "refuerzo de esquina"
I have seen "cap corner" as tapón de esquina at Google images,but I don't think this is the correct translation.
What do you think about "refuerzo de esquina"?