I quibble a bit with Davids thought of using this article as a sort of glossary to tie into what the drawings say. If your documents are coordinated (and all of ours are always totally coordinated, right?) the words used on the drawings will always be consistent with the terms used in throughout the section. (Said somewhat tongue-in-cheek, of course). I agree that helping the user find materials within the section, however, is the real purpose for this article,
Think of the Summary or Section Includes article as being a mini-table-of-contents to the section. Use it as a quick guide to clue the reader into what follows.
MasterSpec is into lists, and for some sections this works fine. An example might be Loading Dock Equipment where I can quickly tell you on this project it is dock levelers, bumpers, and dock seals. Sheldons idea of eliminating the article completely makes sense for sections that deal with single specific products. When I title a section Roof Hatches, do you really need to be told in the Summary that This section includesuhlets seeoh yearoof hatches!? I have been leaving self-evident sentences like that in for a consistent section format, but probably will start leaving them out.
But it is when we get into systems specifying or assemblies specifying that I think we can make the most valuable use of the Summary or Section Includes article. We want a complete warranted granular-surfaced modified bitumen roofing system, including insulation, vapor barriers, protection boards, and accessories. Well tell you more specifically what all that stuff is later in the section, but for now you know this is more than just mbr membranes and hot or cold goo to hold them down.
Also, an assembly section like Unit Masonry Assemblies sometimes requires use of Items installed but not furnished [steel lintels] or furnished but not installed [dovetail slots in concrete] as part of or immediately following the article. We are putting a lot of stuff in this assembly that might ordinarily be found elsewhere [flashing, insulation, vapor or air retarders], so its good to outline what is and what is not included here.
But beyond these general road map descriptions of what follows within the section, Ill jump in on the side of keeping everything else out of Section Includes., especially keeping out the redundant (be sure to give us everything we want) statement that Brett asked about to open the discussion.