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Planning commission approves Fibrex windows in two after‑the‑fact cases; commissioners urge stricter permit diligence
Summary
The commission approved two related design study applications for Fibrex (Andersen) windows, including one application filed after windows were installed without prior planning approval; commissioners approved the installations but urged vendors and installers to follow the city’s design‑review process in future.
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The Carmel City Planning Commission approved two related design study applications on Thursday allowing Fibrex (Andersen) replacement windows to remain at two single‑family residences, including one application that was filed after the windows had already been installed.
Staff described Fibrex as a composite/clad product (a resin/wood‑fiber material marketed by Andersen) and presented the same technical materials to the commission for both properties. Planning staff said the product can meet Class A fire‑assembly standards and that it replicates wood appearance closely when the 400 series (Fibrex clad wood) is used; the 100 series is a full‑Fibrex product. The commission heard from industry representatives who described the material’s recycled‑content attributes, warranty and fire performance.
Commissioners and staff repeatedly emphasized that exterior changes still require design review even if a building permit is not needed for like‑for‑like replacement. In both cases the commission discussed whether the windows had required a prior design study. For one property staff said there had been confusion: installers relied on communications they believed gave permission to proceed; the installed front windows appeared in the field before a completed design study was on file. Staff told the commission it would update process guidance and clarified that a posted “notice of authorized work” is required when an exemption from a building permit applies, but that planning design approval is still required for exterior material deviations.
Commissioners approved the two applications with reservations and with a condition that any egress or other building‑code items be confirmed by the Building Department. Commissioners also asked staff to review the paperwork trail and to ensure vendors and installers are given clear instructions on planning submittal requirements so homeowners are not placed at financial risk.
Commission action summary (two related items): both applications were approved on roll calls with unanimous or near‑unanimous support (tallies recorded as yes 5, no 0 for each action). Staff will document the administrative pathway for Fibrex going forward and create clearer guidance for vendors and homeowners.

