Specification conflicts and design resolution · Lesson 4 of 4

Specification conflicts and design resolution: defects, verification and case study

Five defects that an unresolved conflict leaves behind, what each reviewer mark allows, a composite case study walked through the packet, and a screen to run before cutting.

You will be able to: Diagnose what an unresolved conflict looks like in a specification or a shop drawing, choose a corrective option, and document the evidence for review.

9 min · 10 slides · 6 questions

All lessons in this module

Slide 1 of 10

A line that contradicts itself

One VA 07 60 00 gravel stop line prints stainless steel as ".05 mm (0.018 inch)".

0.018 in is 0.457 mm, and 0.05 mm is about 0.002 in, so the two numbers describe very different sheets.

Door sill flashing in the same VA section (2.6) prints 0.5 mm (0.018 inch), a different item.

The document does not say which was meant, so the line is queried, not guessed.

Sources

VA Master Specification 07 60 00 Flashing and Sheet Metal (01-01-21) - U.S. Department of Veterans Affairs (Whole Building Design Guide)

Videos for this lesson

What this video shows: One manufacturer's video on sizing, materials, installation tools and ES-1 installation requirements for its own snap-on coping system (not an AFS system).

Video: Metal Snap-On Coping; R-Mer Edge Coping -- Application Excellence by The Garland Company, Inc., on YouTube. Chosen from the video's published description.

Glossary

Stale reference: A reference to an old code or standard edition inside a newer document, such as a VA specification that takes wind speed from Figure 1609 of IBC 2003.
Silent substitution: Changing a specified item without pointing it out. UFGS 01 33 00 and VA 01 33 23 both warn that failure to point out variations or deviations can lead to removal of the work.
Approved as noted: A VA review mark that authorizes the Contractor to proceed provided the noted comments and corrections are incorporated.
Revise and resubmit: A VA review mark, "Disapproved, revise and resubmit", meaning no work shall proceed for that item until the resubmittal is approved.
Composite case study: An example built from published specification text and labelled as such. It is a teaching device, not a real project.
Isolation: Separating dissimilar metals, for example with heavy-bodied bituminous paint or moistureproof building felts, as UFGS 07 60 00 3.1.9.1 describes for copper.