- Easy-to-install.
- Available in 4 convenient joist widths 360, 410, 470, 560 (mm).
- The DIY solution that will keep your home warm, dry and healthy.
- Comes with an EXPOL 50 Year Product Warranty and requires no maintenance.
EXPOL R3.1 is a rigid black panel infused with graphite making it up to 24% more efficient than other polystyrene panels. EXPOL R3.1 is ideal for extremely cold temperatures and windy environments and can be recycled. Manufactured from graphite infused black Expanded Polystyrene material, 1200mm in length, 100mm thick in four standard widths 360, 410, 470, 560.