Product Data Sheet: ULTRAPLAST B
Product Name
ULTRAPLAST B – APP-Modified Bitumen Membrane
Description
ULTRAPLAST B is a high-performance APP-modified bitumen membrane designed for waterproofing applications in new construction and repair projects. Engineered to withstand significant temperature fluctuations and mechanical loads, this membrane is particularly effective in regions with very hot climates due to the added flow resistance provided by the APP polymer.
Key Features & Benefits
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High Temperature Resistance: The APP polymer modification ensures stability and flow resistance, making it ideal for hot climates.
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Mechanical Strength: Withstands high mechanical loads and temperature fluctuations for long-term reliability.
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Installation Guide (Melt Indicator): The bottom side is covered with a specific polymer film containing graphic elements; the melting of these graphics indicates that the material has reached the proper heating temperature for adhesion.
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Dual-Sided Protection:
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Top Side: Covered by a polymer film.
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Bottom Side: Covered by a polymer film with thermal indicators.
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Recommended Applications
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Roofing: Designed for installation as the bottom layer in a double-layer roofing system.
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Pitched Roofs: Suitable as an underlay for bitumen shingles.
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Structural Waterproofing: Ideal for waterproofing foundations and general engineering structures.
Technical Specifications
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Material Type: APP-Modified Bitumen
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Roll Dimensions: 20 m (Length) × 1 m (Width)
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Top Surface: Polymer Film
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Bottom Surface: Polymer Film with graphic melt indicators
Installation Guidelines
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Surface Preparation: The application surface must be thoroughly cleaned of dust, debris, grease, leaves, and oil.
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Surface Condition: The substrate must be smooth; gaps, cracks, or irregularities must be repaired to ensure proper adhesion.
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Priming: The surface must be treated with a bitumen primer before the installation of the waterproofing material.
Storage & Handling
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Orientation: Keep rolls stored in an upright position.
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Stacking: Do not stack pallets on top of one another.
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Environment: Store indoors in a dry place within original packaging until ready for transport to the construction site.
Key Technical Specifications
| Characteristic | Value |
| Flow Resistance | ≥ +120°C |
| Flexibility at Low Temp | ≤ -2°C |
| Reinforcement Type | Polyester (provides high tensile strength and elongation) |
| Tensile Strength (L/T) | ~750 / 600 N/50mm |
| Softening Point | ≥ +150°C |
| Thickness Options | Typically available in 2mm, 3mm, and 4mm |
Primary Applications
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Double-Layer Roofing (Bottom Layer):
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ULTRAPLAST B (Plain) is specifically engineered as the base sheet. It should be covered by a mineral-topped cap sheet (like Ultraplast B Grey Mineral) to protect the bitumen from UV radiation.
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Foundations & Engineering Structures:
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Used for waterproofing underground structures where high mechanical strength is required to resist soil pressure and movement.
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Underlay for Shingles:
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Acts as a secondary waterproofing barrier under bitumen shingles on pitched roofs.
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Installation Notes
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Method: Torch-on application.
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Preparation: The surface must be cleaned, dried, and treated with a bitumen primer before installation to ensure proper adhesion.
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Overlaps: Standard practice requires longitudinal overlaps of 100 mm and end overlaps of 150 mm.
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