Why Some SPC Flooring Fails: Understanding Composition, Subfloor Preparation, and Moisture Control

SPC (Stone Polymer Composite) flooring is a popular choice for homeowners due to its durability, waterproof properties, and stylish appearance. However, not all SPC flooring performs the same. Failures often occur due to low-quality materials, improper subfloor preparation, and moisture issues . This article explores the common reasons SPC flooring can fail and how to avoid costly mistakes. 1. The Impact of Limestone Content in SPC Flooring SPC flooring consists of a core made from a blend of limestone (calcium carbonate), PVC (polyvinyl chloride), and stabilizers . While limestone adds strength, excessive limestone with too little PVC can make the core brittle and prone to moisture absorption . A higher limestone ratio makes SPC planks more fragile, leading to cracks and breakage over time. A porous core absorbs moisture, which can cause warping, swelling, and structural weakness . Premium SPC flooring maintains the right balance between PVC and limestone, ensuring long-term...