A. ALL SLABS ON GRADE SHALL CONSIST OF A 4 INCH THICK 2500 PSI (MIN) SLAB PLACED OVER A 6

Board of Adjustments Regular Meeting · 2026-04-21 · agenda_item

This item concerns proposed construction standards for concrete slabs on grade. The specifications call for a 4-inch thick slab with a minimum strength of 2500 PSI. It will be placed over a minimum 6-mil polyethylene vapor retarder, which itself will be laid on clean, compacted fill. The concrete must be reinforced with polypropylene fibers, at least 1-1/2 inches long, at a rate of 1.5 pounds per cubic yard of concrete. All vapor retarder edges must overlap by at least 6 inches and be taped at joints and penetrations. This item is currently under review by the Board of Adjustments. If approved, this project would involve site preparation, concrete pouring, and potentially utility work. Contractors specializing in concrete, site preparation, and potentially underground utilities could find opportunities. Engaging early before final permits are issued may offer a competitive advantage.

slab thickness

4 inch

minimum concrete strength

2500 PSI

minimum vapor retarder thickness

6 mil

minimum fiber length

1-1/2 inch

fiber rate

1.5 lbs/CY

minimum vapor retarder overlap

6 inch