APP Torch Applied Modified Bituminous Waterproofing Membrane

※  Product Description

The APP (Atactic Polypropylene) Torch Applied Modified Bituminous Waterproofing Membrane is a highly durable, flexible, and heat-resistant solution designed for high-performance waterproofing applications. It is composed of a blend of bitumen modified with APP (a plastic-based polymer), making it ideal for use in environments exposed to extreme temperatures. The membrane is applied using a torch to heat and adhere the membrane to the surface, creating a seamless, watertight barrier that ensures long-term protection.

This membrane is widely used in commercial, industrial, and residential applications, including roofing, basements, foundations, and tunnels. It provides excellent resistance to UV rays, oxidation, and aging, making it perfect for projects requiring longevity and high durability.

※  The name of  SBS Torch Applied Modified Bituminous Waterproofing Membrane

※  Executive Standard

GB18243-2008

※  Application

※  Material Features

• APP Modification:

• Superior Heat Resistance: The APP-modified bitumen allows the membrane to withstand high temperatures, making it ideal for areas exposed to extreme sunlight and heat.

• Cold Flexibility: Despite its heat resistance, APP-modified membranes remain flexible at low temperatures, reducing the risk of cracking or brittleness in cold environments.

• Torch-Applied Technology:

• Seamless Waterproofing: The torch-applied method ensures that the membrane adheres fully to the substrate, creating a seamless and continuous waterproof barrier.

• Strong Bond: The use of heat helps the membrane bond tightly to a wide range of substrates, including concrete, metal, and wood, reducing the risk of water penetration.

• Durability and Longevity:

• UV and Aging Resistance: Designed to resist ultraviolet (UV) radiation, oxidation, and weathering, the membrane maintains its performance over time without deteriorating, even in harsh environmental conditions.

• Puncture and Tear Resistance: The membrane’s composition ensures high tensile strength, providing excellent resistance to punctures, tears, and other mechanical damage.

• Versatile Applications:

• The APP membrane is ideal for both horizontal and vertical applications, making it suitable for roofs, terraces, foundations, basements, and tunnels.

• Adaptable to Various Climates: Whether used in hot climates or cold regions, the membrane performs reliably under extreme temperature fluctuations.

※  Technical Specifications

• Material Composition: APP-modified bitumen, reinforced with polyester or fiberglass for added strength.

• Thickness: Available in thicknesses ranging from 3mm to 5mm, depending on project requirements.

• Tensile Strength: High tensile strength, typically around 500-600 N/5cm, providing superior tear resistance.

• Elongation: The membrane has an elongation capacity of 25-35%, allowing it to accommodate structural movements and thermal expansion.

• Temperature Resistance: Capable of withstanding temperatures from -25°C to 150°C (-13°F to 302°F), ensuring performance in both cold and hot climates.

• Waterproofing Capabilities: Fully waterproof, with a water absorption rate close to 0%, ensuring long-term protection against water intrusion.

• UV Resistance: Built-in UV protection, preventing damage from prolonged exposure to sunlight.

※  Application

• Roofing:

• Ideal for flat or low-slope roofs, the membrane provides superior waterproofing protection against rain, snow, and other weather elements.

• Can be used in new roofing systems or as a restoration material for existing roofs.

• Foundations and Basements:

• Protects below-grade structures from groundwater and moisture infiltration, ensuring long-lasting protection for foundations and basements.

• Terraces and Balconies:

• Ensures waterproofing in areas exposed to heavy rainfall, making it perfect for terraces and balconies where water ponding can be an issue.

• Bridges and Tunnels:

• Used in civil engineering projects to provide durable waterproofing in critical infrastructure like bridges and tunnels, where water infiltration can cause significant damage.

• Bathrooms and Wet Areas:

• Effective as a waterproofing layer beneath tiles in bathrooms, kitchens, and other wet areas.

Installation Guidelines:

1. Surface Preparation:

• Ensure that the surface is clean, dry, and free from dust, oil, and debris. Any rough spots should be smoothed, and cracks should be filled to create a uniform application surface.

• A suitable primer should be applied to improve adhesion between the membrane and the substrate.

2. Torch Application Process:

• Heating the Membrane: Use a propane torch to heat the underside of the membrane. Move the torch evenly across the surface to melt the bitumen layer, making it sticky.

• Applying the Membrane: Slowly roll out the membrane onto the surface while continuously heating it. Use a roller to press down the membrane and ensure full contact with the substrate.

• Overlapping: Ensure that adjacent rolls overlap by at least 75mm (3 inches) to create a watertight seal between sheets. The overlap should also be heated to ensure bonding.

3. Seams and Details:

• Pay extra attention to seams, corners, and edges to prevent potential weak spots where water could penetrate. Consider applying extra layers or using reinforcement materials in critical areas.

• Flashing and upstands should be carefully sealed using torch-applied techniques to ensure complete waterproofing.

4. Curing Time:

• The membrane adheres fully once cooled, and no additional curing time is required, allowing for immediate waterproofing protection after installation.

Maintenance:

• Routine Inspections: Conduct periodic inspections, especially after severe weather conditions, to ensure the integrity of the membrane.

• Repairs: In case of any damage, repairs can be made by torch-applying patches over the affected areas. The flexibility of APP-modified membranes allows for easy maintenance and repair.

Environmental Considerations:

• The APP membrane is designed to have a low environmental impact. Its durability and long lifespan reduce the need for frequent replacements, contributing to sustainable construction practices.

• It contains no harmful chemicals and can be safely disposed of or recycled at the end of its life cycle.

Safety and Handling:

• Always use protective equipment when applying the membrane, including gloves, safety goggles, and flame-resistant clothing, as the torch application process involves high heat.

• Proper ventilation is required during application to avoid inhaling fumes.

• Store the membrane rolls in a cool, dry place, away from direct sunlight and heat sources.

Why Choose Our APP Torch Applied Modified Bituminous Waterproofing Membrane?

1. High Heat Resistance: With exceptional heat tolerance, the APP-modified bitumen membrane is perfect for areas exposed to extreme heat and UV radiation, ensuring long-lasting performance.

2. Seamless Application: The torch-applied installation process ensures a fully adhered, watertight barrier that provides reliable protection against water infiltration.

3. Durability and Longevity: The membrane’s resistance to UV radiation, punctures, and mechanical damage extends its lifespan, making it a cost-effective choice for any waterproofing project.

4. Versatile Applications: From roofing to below-grade waterproofing, this membrane provides robust protection for a wide variety of structures and surfaces.

※ Construction Methods

This product is able to adopt construction methods as follows:  Torch applied.

※  Storage and Transport

1. Products of different types or specifications shall not be mixed in stock.

2. SBS elastomeric bitumen membrane should be kept dry and ventilated, without exposure to the sun or rain.

3. The temperature of the storage shall not be higher than 45 ℃. Stockpile the membranes flatwise, whose stockpile height shall not exceed five layers.

4. Prevent tilt or side pressure during transportation. Felt covering is required if necessary.

5. Time of storage shall at least be one year from the date of manufacture, under normal storage conditions for the product.