App Membrane Insutech For Waterproofing

APP Membrane (Insutech) — Mineral-Based Waterproofing, 1 m × 10 m (4 mm / 4.5 kg/m²)

Protect foundations, roofs, and wet areas with a professional-grade APP membrane designed for lasting waterproofing performance. The Insutech APP membrane is a mineral-based, torch-applied sheet that gives builders and contractors a durable, impermeable barrier against water ingress while remaining tolerant of normal temperature swings and on-site handling.
At 4 mm thick and ~4.5 kg/m², the membrane balances tear-resistance with enough flexibility to conform to irregular surfaces, making it straightforward to install on both new builds and renovation projects.
Formulated for demanding site conditions, this product resists alkaline and mild acidic attack and inhibits microbial growth, so it keeps performing in buried or exposed applications. When finished with slates or compatible surface treatments it also shows excellent UV resistance, extending service life on exposed roofs and parapets.
Insutech’s membrane adheres well to a wide range of substrates, so it works above and below grade across slabs, basements, terraces, roofs, and podiums.

Key Details You Need

• Brand: Insutech
• Material: Mineral-based APP membrane
• Mass / density: ~4.5 kg/m²
• Thickness: 4 mm
• Size / roll: 1 m × 10 m (10 m² per roll)
• Performance: Absolute impermeability to water; high chemical resistance (alkaline, light acidic); bacterial resistance
• Durability: Excellent UV resistance when properly finished; thermal resistance across normal site temperature variations
• Use: Suitable for both above-grade and below-grade waterproofing

Who it’s perfect for

This membrane suits roofing contractors, civil engineers, and building professionals who need a reliable, torch-applied sheet for waterproofing balconies, parapets, flat roof systems, foundation walls, and underground elements.
It’s also useful for renovation projects where a robust, low-maintenance barrier is required to stop leaks and protect interior finishes.

Price in Kenya

The price is KSh 6,500.00 per 1 m × 10 m roll.
Insutech primer (20 L) is also available on the page at KSh 4,000 for surface preparation where needed.

Why it’s a smart investment

• Using a mineral-based APP membrane reduces the risk of water damage, staining, and structural deterioration, cutting long-term repair costs.
• Its chemical and bacterial resistance makes it suitable for aggressive subsoils or contact with cementitious materials.
• Because it adheres well to many substrates and tolerates thermal movement, installations remain watertight under normal building settlement and seasonal temperature shifts.

Installation & maintenance notes

For reliable bonds, clean and primed substrates are essential—use the recommended Insutech primer where specified. Torch or hot-melt application must follow manufacturer guidance to avoid overheating; consult the technical datasheet for lap requirements and finishing details.
Where the membrane is exposed, finish with compatible slates or protective screed to maximise UV durability.

Order & delivery

Stock a proven membrane on site to avoid weather delays and keep projects on schedule. Add the required number of rolls and primer to your cart to secure prompt dispatch and delivery; our checkout and shipping options let you choose rapid delivery or store pickup.