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Fundo Riolito neo modular

Fundo Riolito neo modular

„The only fully sealed and factory integrated waterproof drain.“

Product information

wedi's Fundo Riolito neo System feature the only fully sealed and factory integrated waterproof drain assembly available in the market of customizable shower floor systems with linear drainage.

They are available in two design options. The first option includes models featuring a one- piece shower base including the drain trench. These provide 1-way or 4-way slopes.

The second option, Riolito neo Modular is designed to offer more flexibility as it consists of two basic elements: one module including the line module which is a trench drain, the other being a sloped extension panel. Drainage can be installed close to the wall or two extension models leading away from either side of an i.e. centered drain.

The line modules may also be used with mortar bed shower applications (tobe topically waterproofed using wedi Subliner Dry, connecting to the Riolito neo line module)..

Technical properties Fundo Riolito neo modular

Drain Technical Properties

Factory integrated and waterproofed drainage channel with trap connection (compression fit). Trap unit to be solvent cement connected to 2” Schedule 40 floor pipe.


Fundo Riolito Shower Base Material XPS/ Extruded Polystyrene Foam Core covered with fiberglass mesh fully embedded in a cement based resin coating
Thermal Conductivity (75°F (25°C) - ASTM C518) 0.23 Bbtu in/hr F
Tensile Strength (ASTM C297) 65 PSI
Shear Strength (Under conditions required in ANSI A118.10-1999) 28 day Shear Strength: 95 psi
84 day Shear Strength: 100 psi
100 day Shear Strength: 98 psi
Waterproofness; ASTM D4068 / ANSI A118.10-1999 Passed
Capillarity 0
R-Value 75°F (25°) - ASTM C518
4.3hr ft. 2 F/Btu/in (R Value for 1” wedi = 4.3)
Flexural Strength (ASTM C947) 627 psi
Robinson Floor Test (ASTM C627) Heavy duty commercial use, passed
Fastener Pull Through (ASTM C473) Wet 131.8 lb./Dry 196.2 lb.
Temperature Limits -58 / +175° F
Freeze & Thaw (ASTM C666 - 25 Cycles) No disintegration/change
Waterproofness of Assembly (ASTM E331) Passed, wedi Fundo Kit assembly (complete sytsem)
Fungus / Bacteria Resistance (ASTM G21) Passed, No Growth
Accelerated Aging (AC 71 - 25 Cycles) No disintegration
UL 1715 (Fire Test of interior Finish Material) Passed, flame spread <10
Linear Variation (ASTM D 1037 (ICC –EG 159)) Passed, less than 0.07%
Surface Burning Characteristics (ASTM E84-16) Classification A:
Flame Spread Index (FSI): 20
Smoke Developed Index (SDI): 70
Floor and Trench Drain Compliance (ASME A112.18.2) Passed, Compliant (ICC PMG 1189)

Areas of use Fundo Riolito neo modular

  • New Construction of Residential/Commercial use buildings
  • Renovation in Residential/Commercial use buildings
  • For barrier free or curbed installations
  • For customized or standard tiled showers
  • Over wooden or concrete substructures

Mandatory articles

Optional articles