100mm Unilin Hyfloor Strip Foundation System

The 100mm Unilin Hyfloor Strip Foundation System delivers advanced floor insulation paired with engineered foundation riser panels constructed from medium-density block. This integrated system meets required U-Values and PSI value specifications, satisfying Future Homes Standard and passive floor performance requirements.

Installing high-performance insulation during the initial construction phase provides substantial benefits. Precise floor-level detailing establishes the foundation for thermal performance and installation quality across the entire building envelope. Correct floor specification ensures consistent excellence and proper execution throughout the construction sequence.

The 100mm Hyfloor Strip Foundation System delivers Future Homes Standard compliance through superior U-Value and thermal bridging performance whilst providing the compressive strength necessary at foundation level.

Product Details

Product name: 100mm Hyfloor Strip foundation system

Type: Premium PIR insulation

Application: Walls

Thickness 100mm, 110mm, 125mm, 150mm

Inner facing: Foil facing

Outer facing: HIP facer

Thermal conductivity: 0.021 (W/mK)

Thermal Resistance: 0.11 – 0.13 W/m2k

Compressive strength: NPD

Size/Dimensions 1200 x 225mm / 1200 x 450mm

Reaction to fire: NPD

Installation: guide Please refer to marketing materials

EPD: An Environmental Product Declaration (EPD), certified by IGBC is available for this product. Please contact technical support for further details.

Key Highlights

1. Incorporates site detailing from the outset of the project.
2. Achieves impressive Y-Values of less than 0.05.
3. Boasts an exceptional lambda value of 0.021 W/mK.
4. Attains floor U-Values within the range of 0.11 to 0.13 W/m2K.
5. Utilizes blocks designed for multi-storey structures with remarkable compressive strength.
6. Adheres to standard construction Approved Construction Details (ACDs).
7. Follows a conventional construction approach, eliminating the necessity for engineering assurances.
8. Well-suited for integration with both built-in full-fill and partial-fill wall insulation solutions.

Thermal Bridging

Selecting an insulated foundation system over traditional strip foundations requires straightforward heat loss assessment and performance comparison. The evaluation process involves:

Determining the achieved U-Value for the floor assembly. Calculating the Psi value, representing heat loss at the wall and floor junction. Applying an appropriate f (temperature) factor to prevent surface condensation and mould growth at skirting level. Generally, U-Values exceeding 0.15 W/m2K satisfy Future Homes Standard requirements. The resulting U-Value from specific floor insulation thickness depends on the floor's perimeter-to-area ratio (P/A). Approximately 150mm of the Hyfloor system typically delivers U-Values between 0.11 and 0.13 W/m2K.

Info

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