Hinged truss plates

Are these rotatable plates intended to be used to extend a truss top chord?

This type of plate is used at the ridge on the same house where it makes approx a 40 deg angle.

I found some other truss issues so calling for an engineer is a given, just wanting some more info/link on this application.

April 29 2009 008.jpg

http://www.schererbros.com/products/mitek/index.php

http://www.icc-es.org/reports/pdf_files/ICC-ES/ESR-1397.pdf

Hi Bruce,

That is a very common fitting on manufactured housing units.

Regards

Gerry