All principal buildings and structures located in the R-1L, R-1, R-2, R-3, and R-4 zoning districts are required to be constructed of materials deemed acceptable by the International Building Code as approved by the last three (3) cycles applicable to the total exterior walls to the top plate, excluding doors, windows, and porches.

Residential structures being constructed in the A, Agricultural zoning district are required to be constructed of materials deemed acceptable by the International Building Code as approved by the last three (3) cycles applicable to the top plate, excluding doors, windows, and porches.

Residential structures being reconstructed or remodeled in the Heritage Overlay District or the Original Town of Joshua Addition may utilize hardiplank or hardiboard for current structures to make up the eighty percent (80%) masonry.

All principal buildings and structures located in the C-1, C-2 or I zoning district are required to be constructed of materials deemed acceptable by the International Building Code as approved by the last three (3) cycles.