Polynum Big aluminium foil insulation with large air bubbles and a white underside. A three-layer sheet made of two pure aluminium foils with a layer of large air bubbles between them, for thermal insulation of roofs and walls. Its pure aluminium foils act as reflective radiant barriers (97% IR), reducing heat loss in winter and heat gain in summer.
- Dimensions: length 30 m, width 1.2 m (36 m²)
- Thickness: 8 mm
