At its September 21st meeting the APHZAB accepted for its reviews the revised language in the Technical Standards Manual regarding windows. The Board will now have more flexibility to recommend approval of alternative window materials. Here is the relevant language from the meeting Legal Action Report (LAR):
The Board members then asked for certain clarifications. It was noted that the language merely allows the Board to consider alternate materials on a case-by-case basis, especially “clad” wood windows. Ms. Brown suggested that it could potentially allow certain considerations on historically authentic replacements that are now being manufactured. She gave several examples: vinyl is never considered appropriate as a material; some aluminum replacements may replicate historic steel windows better than other options; exterior and interior surface wood munitions and mullions may more faithfully recreate historic proportions on dual pane windows rather than scaled up versions required for the heavier and thicker panes (noting that between glass snap in grids and exterior only designs are not considered appropriate; and that some fiberglass products may be better than modern wood replacements in specific instances. The option however will only allow for consideration of possible materials on a case-by-case basis. Further acceptable changes would require further updates to guidance than the language now in the code the Board is discussing.