Insuboard Double Protection Board
INSUBOARD consists of a modified bitumen compound with selected additives, sandwiched between double layers of saturated reinforcements to create a robust, impact-resistant board.

Engineered for the job it protects.
INSUBOARD consists of a modified bitumen compound with selected additives, sandwiched between double layers of saturated reinforcements to create a robust, impact-resistant board. Its superior puncture and static load resistance makes it the ideal protective layer between waterproofing membranes and the mechanical stresses of construction site operations.
Beyond its protective function, INSUBOARD serves as a secondary waterproofing layer that improves the overall efficiency of the waterproofing system. It can be loose-laid, spot-bonded with adhesive, applied with double-sided tape, torch-welded, or bonded with hot bitumen — adapting to the specific requirements of roofing, below-grade, and other applications.
- Resistant to penetration of backfilling materials and accidental damage from site operations
- Water resistant towards wet soil conditions
- Cost saving by eliminating the need for screed and masonry protection
- Compatible with most waterproofing systems, especially bituminous systems
- Time saving and easy to install
- Resistant to chemicals and salts found in soil
Double PES-CB
| TEST | UNIT | TEST METHOD | TOLERANCE | 3mm | 3.2mm | 3.5mm | 4mm | 6mm |
|---|---|---|---|---|---|---|---|---|
| Thickness | mm | EN 1849-1 | MDV ± (5%) | 3 | 3.2 | 3.5 | 4 | 6 |
| Width | m | EN 1848-1 | MDV ± (1%) | 1 | 1 | 1 | 1 | 1 |
| Length | m | EN 1848-1 | MDV ± (1%) | 2 | 2 | 2 | 2 | 2 |
| Resistance to Static Loading | Kg | EN 12730 | MLV ≥ | 10 | 10 | 10 | 15 | 20 |
| Resistance to Impact Loading | mm | EN 12691 | MLV ≥ | 900 | 900 | 900 | 1000 | 1200 |
| Resistance to Puncture | N | ASTM E154 | MLV ≥ | 950 | 950 | 950 | 950 | 950 |
*Insutech reserves the right to modify product specifications, descriptions, and technical information at any time without prior notice.
Application, Step by Step.
Confirm the waterproofing membrane below is complete, sound and approved before any protection boards are placed over its surface.
Measure and cut Insuboard panels to fit the area, allowing tight joints around penetrations, corners and all construction details.
Place the boards directly against the membrane surface, butting edges tightly together and staggering joints between adjacent rows.
Bond the boards with a compatible adhesive or spot-fix them as specified, avoiding any fixing method that could puncture the membrane.
Tape or seal the board joints where specified so the protection layer stays fully continuous during backfilling and other site works.
Backfill or cast the following layers promptly, compacting in controlled lifts and keeping sharp objects away from the protected face.
















