PROVA Joint is a thin waterproof membrane tape designed to seal critical seams, corners, and transitions in PROVA waterproofing and underlayment applications, preventing leaks, mold, and costly moisture damage to walls, floors, and subfloors. By using PROVA Joint, installers can waterproof critical areas quicker and easier—without folding or overlapping large membrane sheets—ensuring lasting protection and professional results.

• 100% Watertight Protection – Engineered to seal joints, corners, and transitions in PROVA Mat and all PROVA Tile Underlayment Systems.
• System Compatible – Creates a continuous barrier that prevents leaks and protects tiled floors and wall assemblies.
• Mold-Resistant – Will not support mold, mildew, or microbial growth.
• Installer-Friendly Width – 5" wide to ensure the required 2" overlap is achieved for every seam.
  
• Fast, Clean Installation – Easily treat seams and transitions without bunches and creases.
• Ultra-Thin Profile – Just 13.78 mil (0.35 mm) thick for minimal buildup 
• ICC-ES Certified – Tested and approved to ANSI waterproofing standards
• Lifetime System Warranty – Guaranteed protection when installed as part of the PROVA Mat Waterproofing System (T&Cs Apply).