Builder appeals correction notice over fanfold underlayment; board continues hearing to allow alternate-method review

Scott Domz, owner of Archde Design, appealed a city correction notice that requires a weather-resistant barrier beneath fanfold insulation installed on a residential re-siding project in Fargo. Domz told the board he submitted drawings that called out 'fanfold installation' as the underlayment, said the city approved the plans, and argued inspectors saw the installation multiple times without raising issues.

City building staff told the board they contacted Owens Corning, the manufacturer identified in project correspondence, and were told the specific fanfold product used on the house is a perforated board that cannot serve as a substitute for a weather-resistant barrier. Staff said they had believed felt underlayment remained in place beneath the fanfold but were unable to confirm that; without confirmation, staff must enforce the code and the…