Selecting the appropriate fiber mesh roll requires a focus on alkali resistance, tensile strength, and coating quality. For EIFS (Exterior Insulation and Finish Systems) and wall reinforcement, you must ensure the mesh is alkali-resistant (AR) to prevent the glass fibers from degrading when in contact with cement. Look for a high-quality polymer coating (usually SBR or acrylic) which provides the necessary flexibility and chemical protection. Additionally, verify the weight per square meter (gsm); standard wall reinforcement typically requires 145g/m² to 160g/m², while heavy-duty floor reinforcement may require 300g/m² or more.