2 FIELD GUIDE TO SLAT REPAIR TOP SIGNS IT’S TIME TO REPLACE SLATS Tip: Beam deterioration—not slats—is the most common cause of catastrophic structural failures. • Hairline top cracks only (no moisture to steel) • Localized wear near feeders/waterers Concrete slat and beam deterioration poses a significant safety and animal‑wellness risk in swine facilities. This guide provides a clear, practical framework for inspecting slats, identifying structural hazards, and determining when replacement is the safest and most cost‑effective option. Use this guide during walk‑throughs, wash‑down inspections, or scheduled maintenance reviews. MONITOR/PLAN FOR SLAT REPLACEMENT IF YOU SEE: Deep cracks or breaks on the underside of slats, typically ~2 inches above the base, caused by swelling rebar. Top‑surface cracks that allow moisture to reach steel, especially if widespread. Uneven or rocking slats, indicating loss of support or beam movement. Beam cracking above columns, missing lower sections, or exposed/swelling steel. Bearing surface < 4 inches on columns or end‑wall pockets. ~40% or more of slats showing moderate/severe wear—full replacement becomes more economical
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