Soffit Insulation
URSA WALLTEC REFLEX slabs are for use as a soffit insulation under concrete, timber or metal flooring systems. The slabs have a foil face to one side only.
URSA WALLTEC REFLEX - thermal conductivity 0.032 W/mK.
Design
URSA WALLTEC REFLEX may be used to achieve the required U-value in the floor and also to enhance its acoustic performance. It has a class leading thermal conductivity of 0.032 W/mK and is totally non-combustible, Euroclass A1.
Installation
Use screw or expansion fixings suitable for concrete (or other substrate) with 70mm (minimum diameter) washer. Use 5 fixings per board, at least one metal fixing centrally and the others 100mm from each corner. Do not overdrive or overtighten the fixings. Boards to be tightly butt jointed.
URSA WALLTEC REFLEX U-values
200mm concrete slab, URSA WALLTEC REFLEX
| URSA WALLTEC REFLEX (mm) | U-value (W/m²K) |
| 131 | 0.23 |
| 150 | 0.20 |
| 170 | 0.18 |