RENO U550 REINFORCE
Key Benefits
- High tensile strength
- Alkali-resistant fiberglass
- Even load distribution, reducing the risk of cracking and substrate movement
- Wide substrate compatibility
- Compatible with underfloor heating systems
- Easy to cut and install, fully embedded in mortar or resin layers
Characteristics
- Composition: Glass fiber
- Color: White
- Packaging: Roll – 50 m² (1 m × 50 m)
- Roll weight: Approx. 7 kg (135 g/m²)
- Square size: 4 × 4 mm
- Warp resistance: 970 N / 50 mm
- Weft strength: 940 N / 50 mm
System integration
Designed for use as part of a complete flooring system, the grid is embedded into fresh mortar or resin layers to reinforce the substrate. It can also support waterproofing and tiling applications, offering additional versatility across multiple installation types.
On-Site efficiency
Supplied in 50 m² rolls, the grid is easy to cut and install, with simple overlapping requirements for larger areas. Its compatibility with underfloor heating systems and wide substrate range helps streamline preparation and installation on site.
Innovation & performance
RENO U550 REINFORCE is a fibreglass reinforcement grid developed to strengthen and stabilise weak subfloors. Its alkali-resistant composition and high tensile strength enable effective load distribution, helping to minimise movement and improve overall system durability.
Application process: RENO U550 REINFORCE
Quick Application Steps (On-Site Guide)
- Prepare: Ensure substrate is clean, sound, dry and primed if required
- Apply base layer: Spread mortar, adhesive or epoxy evenly
- Install: Lay mesh into wet layer and press firmly to embed
- Overlap: Maintain approx. 5 cm overlap between mesh runs
- Finish: Cover fully and proceed with flooring system once cured
1. Subfloor preparation
A stable and well-prepared substrate is essential for reinforcement systems:
- Substrate must be structurally sound, dry and free from contaminants such as dust, grease or oil
- Remove weak layers, coatings and adhesive residues by mechanical preparation
- Vacuum thoroughly to eliminate loose debris
- Dense or smooth substrates should be abraded and degreased
- Uneven areas should be levelled prior to installation
- Apply a suitable primer where required depending on the system used
All substrates must comply with local standards before installation.
2. Installation preparation
- Select compatible system (repair mortar, tile adhesive or epoxy resin)
- Apply an even base layer using the appropriate trowel
- Ensure sufficient coverage to fully embed the mesh
- Do not apply more material than can be worked while still wet
Important: The mesh must always be fully encapsulated within the base layer.
3. Installation
- Lay the reinforcement mesh directly into the fresh base layer
- Press gently using a trowel or roller to ensure full contact
- Cut to size using scissors or a sharp knife
- Maintain overlaps of approximately 5 cm between adjacent sheets
- Ensure the mesh is fully covered with no exposure at the surface
- For epoxy systems, broadcast sand into the wet resin to prepare for subsequent layers
Designed to stabilise weak substrates and distribute stresses across the surface.
4. Drying & curing
- Allow base layer (mortar, adhesive or resin) to cure before continuing
Typical next steps:
- Apply additional levelling or repair layers if required
- Proceed with final floor system once cured and stable
5. Underfloor heating
- Switch off heating systems 48 hours before, during, and at least 48 hours after application
- Gradually bring heating back to operating temperature after completion
Common mistakes to avoid
- Failing to fully embed the mesh within the base layer
- Insufficient overlap between mesh sections (risk of cracking)
- Applying onto poorly prepared or contaminated substrates
- Uneven base layer leading to inadequate coverage
- Exposed mesh at surface level
- Skipping primer where required for adhesion
- Applying outside recommended temperature range (+15°C to +30°C)