How do the screen attachment and add-a-room attachment accessories attach to the awnings?

One of the characteristics of Shademaker bag awnings is that they have the loop part of a hook and loop attachment system (popular name "Velcro (TM)") sewn down the sides of the awnings. This loop mates with matching hook sewn on the top of the Add-a-rooms and Screen Attachments. Additionally, adhesive loop is attached to the front bar of the awning to hold the front section of the awning attachments.

This aspect of the attachment system is the principal reason that Shademaker attachments are only compatible with Shademaker awnings and other brands of attachments are not.