I really like Nathan’s list above. I feel that architects too often use proprietary specifications where they really don’t give a rip. On clear float glass, there are only about 5 domestic manufacturers anyway; why would you prefer PPG’s clear float over Visteon’s? Would you specify a manufacturer for sand? For commodity items, does anyone really care?
I try to look at the items we really want to control and narrow the specification to a few manufacturers we know provide good products.
I have come to feel that the installer is much more critical than the manufacturer anyway. I would really rather have mediocre products installed by good mechanics than outstanding products installed by mediocre mechanics, and I feel this way about waterproofing, concrete, paint, cabinet work, roofing; maybe even items like HM doors or door hardware. Wouldn’t you really rather have one of 2 or 3 roofers in your areas with their best crew installing whatever they think is appropriate than spending a lot of time specifying the top of the line roofing systems from GAF or JM or Firestone or whoever and having it poorly installed?
One of my frustrations is that we don’t really address this issue in a lot of our specifications; we don’t even really frame the discussion in those terms.
But, I digress…
Substitutions in all their forms are a necessary evil even under optimal circumstances. I have seen or heard of most of the issues listed above, and am just as frustrated as many of you are when you make a call and find out there is a car load of material on a siding 50 miles away. However, in the contractor’s/installer’s defense, how is he supposed to know if he/she is getting the same story from 3 local distributors?
Manufacturers go out of business, change names, or get bought out with sometimes distressing frequency (re: Best Lock; Best Access Systems; Best Access Systems, a division of Stanley Security Solutions who used to be Stanley Hardware). It doesn’t have to be an old office master or even a section pulled from an old job for the CA people to find that a manufacturer or a product that just isn’t available any more.
I do like Anne’s suggesting about requiring a copy of the original order; however, even if the contractor has not been doing his job, are you really going to require him to air freight 600 stone countertops from an Italian fabricator? Maybe so… maybe it just isn’t practical. Maybe you accept a substitution for a product that is available and tell the contractor that you will recommend to the Owner that no payment be made on that material.
We often find, especially on smaller projects, that the Owner is willing to accept non-conforming work without our concurrence. I would argue that the contractor had better be showing the Owner the money, but often it is enough that the contractor play a schedule card and indicate that there is no price increase. Where this is done directly between the Owner and the contractor without our knowledge, it is my view that the contractor has assigned design liability. Smaller contractors will much too often take on liability they really shouldn’t. When something goes wrong, the A/E is often in the best position if they have documentation that the work was non-conforming and that notice was given to the owner. If the contractor realizes that they will “own” not only the construction, but the design as well, they will sometimes decide that the original design could be made available after all.