Blanke PERMAT 2′×3.2′ reinforcing underlayment delivers unmatched crack isolation and deflection control. Lightweight, self-seaming, and only 1/8″ thick—ideal for professional tile and stone installations over wood or concrete substrates.
Engineered for professionals: reinforce wood and cement subfloors, isolate cracks, and reduce deflection—all in a low-profile, fast-install system.
Why Flooring Pros Choose Blanke PERMAT
Crack Isolation & Deflection Control: Fiberglass mesh bonds with thinset to protect tile from substrate movement. :contentReference[oaicite:0]{index=0}
Superior Strength: Industry-leading tensile and compressive performance—outperforms traditional uncoupling membranes. :contentReference[oaicite:1]{index=1}
Low-Profile Design: Only 1/8″ thick for seamless transitions and retrofit-friendly installation. :contentReference[oaicite:2]{index=2}
Installation Substrates: Wood (no double plywood required), concrete, screeds; supports wood joists up to L/720 for stone. :contentReference[oaicite:8]{index=8}
Installation Snapshot
Confirm substrate is clean, flat, dry, and load-bearing.
Apply modified thinset with a fish-scale or ¼″ notch trowel.
Place panels fleece-side down, overlapping mesh edges; stagger seams by at least 3″. :contentReference[oaicite:9]{index=9}
Embed panels fully using a roller or the flat side of your trowel to eliminate bubbles.
Apply tile directly—no cure time needed. :contentReference[oaicite:10]{index=10}
Include perimeter and movement joints as per TCNA guidelines. :contentReference[oaicite:11]{index=11}
Applications & Benefits
Ideal for residential and commercial tile or stone installations over wood or concrete.
Supports heavy point loads—suitable for large-format tiles and stone. :contentReference[oaicite:12]{index=12}
Reduces need for added plywood layer on wood decks—saves time and materials. :contentReference[oaicite:13]{index=13}
Excellent performance under in-floor heating systems. :contentReference[oaicite:14]{index=14}