Torch-On Roofing Membrane - Base & Cap Sheet - LAMA 2PLY

Torch-on Application of LAMA 2PLY

Preparation:

• Ensure the substrate is clean, dry, and free from debris.
• Verify that the surface is suitable for torch-on application.
• Take necessary safety precautions, including the use of protective gear.

Layout and Positioning

• Unroll the LAMA 2PLY membrane, positioning it so that the lower face with the polyethylene film is bonded to the substrate.
• Check the alignment and make any necessary adjustments to ensure a smooth and even application.

Torch-On Application (LAMABase):

• Use a propane gas burner to carefully melt off the polyethylene film on the LAMABase sheet.
• Simultaneously, unroll and lay the membrane onto the substrate.
• Torch-on the membrane, ensuring a thin layer of bitumen is melted for a secure bond.
• Maintain a 3.5" overlap for consistent water-tight bonding.

Laying and Overlapping (Both LAMABase and LAMACap):

• Lay the sheets with precision, ensuring a 3.5" overlap for both LAMABase and LAMACap to enhance the overall integrity of the system.
• Secure side laps at 100 mm and end laps at 150 mm.

Heat-Welding (LAMACap):

• Apply the LAMACap sheet on top of the LAMABase.
• Utilize the torch-on method to heat-weld the LAMACap, ensuring a strong and durable connection between the two sheets.

Adaptation to Structure and Specifications:

• The membrane may be loosely laid, partially bonded, or fully bonded based on the specific structure and project specifications.

Quality Checks:

• Periodically inspect the application for proper bonding, ensuring there are no visible defects or irregularities.
• Verify that the 3.5" overlap, side laps, and end laps adhere to recommended measurements.

Cooling and Final Checks:

• Allow the applied membrane to cool and set, ensuring a solid and secure roofing system.
• Conduct final checks to confirm the torch-on application has created a seamless and watertight surface.
  

Why Choose a Torch-On Roofing System?

Choosing a torch-on roofing system, such as LAMA 2PLY, offers several key advantages.

• Torch-on membranes provide a seamless and durable roofing solution, reducing the risk of leaks and water infiltration. The torch-on application method creates a strong bond between the membrane and the substrate, ensuring long-lasting protection.
• Torch-on roofing systems are known for their flexibility and adaptability, especially in challenging weather conditions. The heat-welded installation process allows for a secure and watertight seal, even in areas with extreme temperature variations.
• Torch-on roofing systems exhibit excellent resistance to aging, punctures, tears, acids, sulfates, and chlorides. This resilience contributes to a prolonged lifespan and low maintenance requirements, making it a cost-effective choice over time.
  
  In summary, choosing a torch-on roofing system provides a reliable, durable, and weather-resistant solution, making it a preferred option for roofing contractors seeking long-term performance and peace of mind.

What makes LAMA 2PLY elastic and flexible?

• The product exhibits excellent elasticity and high flexibility, especially at low temperatures.

How is it applied on surfaces?

• LAMABase can be heat-welded, mechanically fastened, or applied on hot bitumen. LAMACap is heat-welded on top of LAMABase.

What is the application method for LAMA 2PLY?

• Rolls are laid with the polyethylene film side bonded to the substrate, melted with a propane gas burner, and unrolled with specified laps.

Can the membrane be partially bonded?

• Yes, the membrane may be loosely laid, partially, or fully bonded based on the structure and specifications.

What are the unique features of LAMABase and LAMACap sheets?

• LAMABase has burn-off films on both surfaces, while LAMACap features a mineral granule coating on the top surface and a burn-off film on the bottom.

How much should the laps be for a watertight bond?

• Side laps should be 100 mm, and end laps should be 150 mm.

What surfaces are suitable for LAMABase?

• It can be applied on hot bitumen and mechanically fastened.

What is the recommended bonding procedure?

• Use a propane gas burner to melt off the polyethylene film and a thin bitumen layer while unrolling and laying the membrane.