Prova TT8800NCH16 Prefabricated Durable Polystyrene Building Panel Waterproof Shower Niche, 16 Inch x 16 Inch, for Tiled Shower Surrounds, Bathrooms And Kitchen

Product Features:

• Fully Waterproof & Ready to Tile: PROVA NICHE is made from durable, waterproof PROVA BOARD PLUS, helping ensure complete waterproofing and long-term protection in tiled shower wall assemblies when installed as part of a properly sealed PROVA waterproofing system.
  
• Compatible with All Tile Types: Perfect for ceramic, porcelain, glass, marble, granite, mosaic, or natural stone tiles, this ready-to-tile shower niche creates a smooth, professional finish in any tiled shower, bathroom renovation, steam shower, or wet area.
• Versatile Installation: Can be used with PROVA-MAT, PROVA BOARD PLUS, or other compatible waterproofing systems, integrating seamlessly with prefabricated shower bases, trays, building panels, and complete waterproof shower assemblies.
• Ideal for Wet Spaces: Designed for showers, steam rooms, tub surrounds, wet rooms, and bathroom enclosures, this waterproof shower niche provides a watertight, mold-resistant, and maintenance-free storage solution for demanding wet-area installations.
• Practical & Stylish Storage: Adds functional shelving or recessed storage to bathrooms, showers, or even kitchen backsplashes, helping organize shampoo bottles, soaps, razors, cooking utensils, and other essentials while keeping surfaces clutter-free.
• Lightweight & Easy to Install: Prefabricated and precision-engineered for quick, clean installation, the PROVA NICHE can be tiled immediately after placement, making it ideal for DIY installers, bathroom remodelers, and professional tile contractors.
• Strong Polystyrene Construction: Made from high-density extruded polystyrene foam with a waterproof coating, woven mesh, and cementitious surface, it ensures durability, impact resistance, rigidity, and long-term moisture protection in tiled shower applications.
• Clean, Modern Appearance: Once tiled, the built-in shower shelf or recessed shower wall niche blends seamlessly with the surrounding wall, enhancing both the design and functionality of contemporary or traditional bathroom spaces.

Product Description:

The PROVA NICHE is a pre-fabricated, waterproof shower niche constructed from PROVA BOARD PLUS—a high-quality, extruded polystyrene foam panel engineered for superior moisture protection, rigidity, and durability. Designed for use in tiled showers, steam rooms, and wet environments, this niche offers an efficient way to add built-in shower storage, style, and organization to your bathroom while maintaining a watertight shower enclosure.

Perfect for modern bathroom renovations and custom tile installations, the PROVA NICHE eliminates the need for additional waterproof membranes, sealants, or liquid-applied compounds over the waterproof niche body itself when installed as part of a complete PROVA waterproofing system. 

For a watertight shower assembly, all joints between the niche and shower walls must be sealed with PROVA-SEAL as recommended by the manufacturer, fasteners must be countersunk and fully covered with PROVA-SEAL or a similar premium hybrid silicone sealant, and any surrounding PROVA waterproofing membrane seams or transitions must also be properly overlapped.

Its ready-to-tile surface allows for immediate installation with ceramic tile, porcelain tile, cement tile, granite tile, marble tile, travertine tile, slate tile, stone tile, limestone tile, sandstone tile, onyx tile, quartzite tile, mosaic tile, or glass tile, ensuring a professional finish that helps resist water infiltration, mold, and mildew. 

This lightweight yet robust prefabricated shower niche saves valuable floor and countertop space by providing convenient recessed shower storage for shampoo bottles, soaps, razors, and other shower essentials. It’s equally suitable for bathrooms, steam showers, wet rooms, and even kitchen backsplashes, offering both function and aesthetic appeal for residential bathroom renovations and professional tile installation projects.

Engineered for easy installation and long-lasting performance, the PROVA NICHE integrates seamlessly with PROVA-MAT, PROVA BOARD PLUS, and other PROVA waterproofing systems, forming part of a complete waterproof shower assembly. Its seamless, flush-tiled appearance makes it an elegant addition to any contemporary or traditional shower design, while its durable polystyrene core with woven mesh and cementitious coating ensures stability and resistance to moisture for years to come.

Choose the PROVA NICHE for a maintenance-free, watertight, and visually appealing shower wall niche solution to enhance your tiled shower, bathroom renovation, or home improvement project with reliable waterproofing performance, practical built-in storage, and a clean tile-ready finish.