And materials change dramatically from year-to-year.
A ''reputable'' builder is not always a ''certified'' builder, so they may not be using the newest information on when to use a material or how to properly apply it.
I can name a couple dozen contractors that will build you a TREX deck.
I can only name one that is ''certified'' to do so.
Just to sell the material is hours of classes each year.
Some salespeople will take the classes, some won't... some will pay attention, others won't.
Any sort of ''engineered'' product gets re-engineered over time.
How up-to-date is the builder and their team?
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